./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d9fefadeb2433964027133b2762439d0736284a9020eef9186f2d2400ba62b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:36:00,999 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:36:01,056 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:36:01,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:36:01,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:36:01,083 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:36:01,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:36:01,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:36:01,084 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:36:01,084 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:36:01,084 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:36:01,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:36:01,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:36:01,085 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:36:01,085 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:36:01,085 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:36:01,085 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:36:01,085 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:36:01,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:36:01,085 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:36:01,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:36:01,086 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:36:01,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:36:01,086 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:36:01,086 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:36:01,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:36:01,086 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:36:01,086 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:36:01,086 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:36:01,086 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:36:01,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:36:01,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:36:01,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:36:01,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:36:01,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:36:01,087 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:36:01,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:36:01,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:36:01,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:36:01,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:36:01,087 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:36:01,087 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:36:01,087 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:36:01,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:36:01,087 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:36:01,088 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:36:01,088 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:36:01,088 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:36:01,088 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d9fefadeb2433964027133b2762439d0736284a9020eef9186f2d2400ba62b5 [2024-12-02 08:36:01,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:36:01,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:36:01,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:36:01,323 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:36:01,323 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:36:01,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i [2024-12-02 08:36:03,944 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/data/3a69eafef/75b17b29b5464cb99ba339121835ffcc/FLAG07a540eab [2024-12-02 08:36:04,152 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:36:04,153 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i [2024-12-02 08:36:04,161 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/data/3a69eafef/75b17b29b5464cb99ba339121835ffcc/FLAG07a540eab [2024-12-02 08:36:04,489 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/data/3a69eafef/75b17b29b5464cb99ba339121835ffcc [2024-12-02 08:36:04,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:36:04,491 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:36:04,492 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:36:04,492 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:36:04,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:36:04,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:36:04" (1/1) ... [2024-12-02 08:36:04,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11b159ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:04, skipping insertion in model container [2024-12-02 08:36:04,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:36:04" (1/1) ... [2024-12-02 08:36:04,507 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:36:04,601 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i[916,929] [2024-12-02 08:36:04,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:36:04,674 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:36:04,683 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i[916,929] [2024-12-02 08:36:04,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:36:04,737 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:36:04,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:04 WrapperNode [2024-12-02 08:36:04,737 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:36:04,738 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:36:04,738 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:36:04,738 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:36:04,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:04" (1/1) ... [2024-12-02 08:36:04,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:04" (1/1) ... [2024-12-02 08:36:04,794 INFO L138 Inliner]: procedures = 29, calls = 181, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 574 [2024-12-02 08:36:04,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:36:04,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:36:04,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:36:04,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:36:04,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:04" (1/1) ... [2024-12-02 08:36:04,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:04" (1/1) ... [2024-12-02 08:36:04,807 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:04" (1/1) ... [2024-12-02 08:36:04,828 INFO L175 MemorySlicer]: Split 147 memory accesses to 5 slices as follows [2, 41, 11, 16, 77]. 52 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 5, 2, 1, 6]. The 18 writes are split as follows [0, 8, 2, 1, 7]. [2024-12-02 08:36:04,829 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:04" (1/1) ... [2024-12-02 08:36:04,829 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:04" (1/1) ... [2024-12-02 08:36:04,850 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:04" (1/1) ... [2024-12-02 08:36:04,852 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:04" (1/1) ... [2024-12-02 08:36:04,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:04" (1/1) ... [2024-12-02 08:36:04,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:04" (1/1) ... [2024-12-02 08:36:04,862 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:04" (1/1) ... [2024-12-02 08:36:04,868 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:36:04,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:36:04,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:36:04,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:36:04,869 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:04" (1/1) ... [2024-12-02 08:36:04,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:36:04,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:36:04,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:36:04,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:36:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:36:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 08:36:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 08:36:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-12-02 08:36:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-12-02 08:36:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-12-02 08:36:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 08:36:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 08:36:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 08:36:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 08:36:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 08:36:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-12-02 08:36:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-12-02 08:36:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-12-02 08:36:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-12-02 08:36:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-12-02 08:36:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 08:36:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 08:36:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 08:36:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 08:36:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 08:36:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-12-02 08:36:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-12-02 08:36:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-12-02 08:36:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-12-02 08:36:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-12-02 08:36:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:36:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:36:04,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:36:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 08:36:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 08:36:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 08:36:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 08:36:04,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:36:04,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:36:05,048 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:36:05,050 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:36:05,527 INFO L? ?]: Removed 158 outVars from TransFormulas that were not future-live. [2024-12-02 08:36:05,527 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:36:05,538 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:36:05,538 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:36:05,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:36:05 BoogieIcfgContainer [2024-12-02 08:36:05,538 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:36:05,540 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:36:05,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:36:05,545 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:36:05,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:36:04" (1/3) ... [2024-12-02 08:36:05,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dad8a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:36:05, skipping insertion in model container [2024-12-02 08:36:05,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:36:04" (2/3) ... [2024-12-02 08:36:05,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dad8a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:36:05, skipping insertion in model container [2024-12-02 08:36:05,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:36:05" (3/3) ... [2024-12-02 08:36:05,547 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-56.i [2024-12-02 08:36:05,562 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:36:05,563 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-56.i that has 2 procedures, 126 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:36:05,617 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:36:05,629 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6b1e8e10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:36:05,629 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:36:05,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 104 states have (on average 1.4326923076923077) internal successors, (149), 105 states have internal predecessors, (149), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 08:36:05,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:36:05,643 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:05,644 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:05,644 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:05,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:05,648 INFO L85 PathProgramCache]: Analyzing trace with hash -70143542, now seen corresponding path program 1 times [2024-12-02 08:36:05,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:05,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381934700] [2024-12-02 08:36:05,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:05,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-12-02 08:36:05,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:05,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381934700] [2024-12-02 08:36:05,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381934700] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:36:05,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504875189] [2024-12-02 08:36:05,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:05,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:36:05,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:36:05,918 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:36:05,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:36:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:06,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:36:06,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:36:06,170 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-12-02 08:36:06,170 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:36:06,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504875189] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:06,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:36:06,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:36:06,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209814518] [2024-12-02 08:36:06,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:06,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:36:06,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:06,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:36:06,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:36:06,191 INFO L87 Difference]: Start difference. First operand has 126 states, 104 states have (on average 1.4326923076923077) internal successors, (149), 105 states have internal predecessors, (149), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:36:06,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:06,218 INFO L93 Difference]: Finished difference Result 245 states and 387 transitions. [2024-12-02 08:36:06,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:36:06,220 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 151 [2024-12-02 08:36:06,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:06,226 INFO L225 Difference]: With dead ends: 245 [2024-12-02 08:36:06,226 INFO L226 Difference]: Without dead ends: 122 [2024-12-02 08:36:06,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:36:06,230 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:06,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:36:06,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-12-02 08:36:06,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-12-02 08:36:06,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 101 states have (on average 1.4059405940594059) internal successors, (142), 101 states have internal predecessors, (142), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 08:36:06,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 180 transitions. [2024-12-02 08:36:06,277 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 180 transitions. Word has length 151 [2024-12-02 08:36:06,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:06,277 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 180 transitions. [2024-12-02 08:36:06,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:36:06,278 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 180 transitions. [2024-12-02 08:36:06,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:36:06,281 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:06,281 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:06,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:36:06,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 08:36:06,481 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:06,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:06,482 INFO L85 PathProgramCache]: Analyzing trace with hash 155255632, now seen corresponding path program 1 times [2024-12-02 08:36:06,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:06,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139015902] [2024-12-02 08:36:06,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:06,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:06,684 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:06,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:06,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139015902] [2024-12-02 08:36:06,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139015902] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:06,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:06,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:36:06,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526007650] [2024-12-02 08:36:06,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:06,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:36:06,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:06,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:36:06,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:36:06,687 INFO L87 Difference]: Start difference. First operand 122 states and 180 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:06,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:06,719 INFO L93 Difference]: Finished difference Result 242 states and 359 transitions. [2024-12-02 08:36:06,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:36:06,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:36:06,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:06,722 INFO L225 Difference]: With dead ends: 242 [2024-12-02 08:36:06,722 INFO L226 Difference]: Without dead ends: 123 [2024-12-02 08:36:06,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:36:06,723 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:06,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 352 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:36:06,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-12-02 08:36:06,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-12-02 08:36:06,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 102 states have (on average 1.4019607843137254) internal successors, (143), 102 states have internal predecessors, (143), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 08:36:06,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 181 transitions. [2024-12-02 08:36:06,735 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 181 transitions. Word has length 151 [2024-12-02 08:36:06,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:06,736 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 181 transitions. [2024-12-02 08:36:06,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:06,736 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 181 transitions. [2024-12-02 08:36:06,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:36:06,739 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:06,739 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:06,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:36:06,739 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:06,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:06,740 INFO L85 PathProgramCache]: Analyzing trace with hash -662392818, now seen corresponding path program 1 times [2024-12-02 08:36:06,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:06,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164067210] [2024-12-02 08:36:06,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:06,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:08,708 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:08,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:08,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164067210] [2024-12-02 08:36:08,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164067210] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:08,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:08,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 08:36:08,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821381549] [2024-12-02 08:36:08,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:08,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:36:08,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:08,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:36:08,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:36:08,711 INFO L87 Difference]: Start difference. First operand 123 states and 181 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:09,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:09,902 INFO L93 Difference]: Finished difference Result 725 states and 1076 transitions. [2024-12-02 08:36:09,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 08:36:09,902 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:36:09,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:09,906 INFO L225 Difference]: With dead ends: 725 [2024-12-02 08:36:09,906 INFO L226 Difference]: Without dead ends: 605 [2024-12-02 08:36:09,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:36:09,908 INFO L435 NwaCegarLoop]: 269 mSDtfsCounter, 979 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:09,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 2084 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:36:09,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-12-02 08:36:09,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 382. [2024-12-02 08:36:09,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 331 states have (on average 1.4501510574018126) internal successors, (480), 332 states have internal predecessors, (480), 47 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 08:36:09,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 574 transitions. [2024-12-02 08:36:09,949 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 574 transitions. Word has length 151 [2024-12-02 08:36:09,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:09,949 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 574 transitions. [2024-12-02 08:36:09,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:09,949 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 574 transitions. [2024-12-02 08:36:09,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:36:09,952 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:09,952 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:09,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:36:09,952 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:09,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:09,953 INFO L85 PathProgramCache]: Analyzing trace with hash 439138535, now seen corresponding path program 1 times [2024-12-02 08:36:09,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:09,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95621091] [2024-12-02 08:36:09,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:09,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:10,063 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:10,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:10,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95621091] [2024-12-02 08:36:10,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95621091] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:10,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:10,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:36:10,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810670678] [2024-12-02 08:36:10,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:10,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:36:10,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:10,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:36:10,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:36:10,065 INFO L87 Difference]: Start difference. First operand 382 states and 574 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:10,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:10,104 INFO L93 Difference]: Finished difference Result 758 states and 1141 transitions. [2024-12-02 08:36:10,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:36:10,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-12-02 08:36:10,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:10,108 INFO L225 Difference]: With dead ends: 758 [2024-12-02 08:36:10,108 INFO L226 Difference]: Without dead ends: 379 [2024-12-02 08:36:10,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:36:10,110 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:10,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:36:10,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-12-02 08:36:10,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2024-12-02 08:36:10,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 328 states have (on average 1.4451219512195121) internal successors, (474), 329 states have internal predecessors, (474), 47 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 08:36:10,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 568 transitions. [2024-12-02 08:36:10,135 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 568 transitions. Word has length 152 [2024-12-02 08:36:10,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:10,135 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 568 transitions. [2024-12-02 08:36:10,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:10,136 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 568 transitions. [2024-12-02 08:36:10,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:36:10,138 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:10,138 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:10,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:36:10,138 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:10,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:10,139 INFO L85 PathProgramCache]: Analyzing trace with hash -234426631, now seen corresponding path program 1 times [2024-12-02 08:36:10,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:10,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726264067] [2024-12-02 08:36:10,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:10,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:10,257 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:10,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:10,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726264067] [2024-12-02 08:36:10,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726264067] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:10,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:10,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:36:10,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289855018] [2024-12-02 08:36:10,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:10,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:36:10,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:10,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:36:10,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:36:10,259 INFO L87 Difference]: Start difference. First operand 379 states and 568 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:10,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:10,297 INFO L93 Difference]: Finished difference Result 760 states and 1143 transitions. [2024-12-02 08:36:10,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:36:10,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-12-02 08:36:10,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:10,300 INFO L225 Difference]: With dead ends: 760 [2024-12-02 08:36:10,301 INFO L226 Difference]: Without dead ends: 384 [2024-12-02 08:36:10,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:36:10,302 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:10,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 344 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:36:10,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-12-02 08:36:10,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-12-02 08:36:10,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 333 states have (on average 1.4384384384384385) internal successors, (479), 334 states have internal predecessors, (479), 47 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 08:36:10,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 573 transitions. [2024-12-02 08:36:10,326 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 573 transitions. Word has length 152 [2024-12-02 08:36:10,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:10,326 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 573 transitions. [2024-12-02 08:36:10,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:10,327 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 573 transitions. [2024-12-02 08:36:10,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:36:10,329 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:10,329 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:10,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:36:10,329 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:10,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:10,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1910188739, now seen corresponding path program 1 times [2024-12-02 08:36:10,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:10,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903317617] [2024-12-02 08:36:10,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:10,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:10,417 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:10,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:10,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903317617] [2024-12-02 08:36:10,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903317617] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:10,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:10,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:36:10,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058134331] [2024-12-02 08:36:10,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:10,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:36:10,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:10,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:36:10,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:36:10,419 INFO L87 Difference]: Start difference. First operand 384 states and 573 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:10,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:10,453 INFO L93 Difference]: Finished difference Result 760 states and 1135 transitions. [2024-12-02 08:36:10,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:36:10,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-12-02 08:36:10,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:10,456 INFO L225 Difference]: With dead ends: 760 [2024-12-02 08:36:10,456 INFO L226 Difference]: Without dead ends: 379 [2024-12-02 08:36:10,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:36:10,458 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:10,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:36:10,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-12-02 08:36:10,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2024-12-02 08:36:10,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 328 states have (on average 1.4298780487804879) internal successors, (469), 329 states have internal predecessors, (469), 47 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 08:36:10,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 563 transitions. [2024-12-02 08:36:10,480 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 563 transitions. Word has length 152 [2024-12-02 08:36:10,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:10,480 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 563 transitions. [2024-12-02 08:36:10,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:10,480 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 563 transitions. [2024-12-02 08:36:10,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:36:10,482 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:10,482 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:10,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:36:10,483 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:10,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:10,483 INFO L85 PathProgramCache]: Analyzing trace with hash -2133860781, now seen corresponding path program 1 times [2024-12-02 08:36:10,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:10,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505740984] [2024-12-02 08:36:10,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:10,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:10,723 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-12-02 08:36:10,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:10,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505740984] [2024-12-02 08:36:10,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505740984] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:36:10,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916610215] [2024-12-02 08:36:10,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:10,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:36:10,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:36:10,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:36:10,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:36:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:10,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:36:10,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:36:10,974 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:10,974 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:36:10,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916610215] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:10,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:36:10,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-12-02 08:36:10,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772037134] [2024-12-02 08:36:10,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:10,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:36:10,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:10,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:36:10,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:36:10,976 INFO L87 Difference]: Start difference. First operand 379 states and 563 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:11,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:11,014 INFO L93 Difference]: Finished difference Result 764 states and 1135 transitions. [2024-12-02 08:36:11,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:36:11,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-12-02 08:36:11,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:11,017 INFO L225 Difference]: With dead ends: 764 [2024-12-02 08:36:11,017 INFO L226 Difference]: Without dead ends: 388 [2024-12-02 08:36:11,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:36:11,019 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:11,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 691 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:36:11,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-12-02 08:36:11,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2024-12-02 08:36:11,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 337 states have (on average 1.4183976261127595) internal successors, (478), 338 states have internal predecessors, (478), 47 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 08:36:11,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 572 transitions. [2024-12-02 08:36:11,042 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 572 transitions. Word has length 153 [2024-12-02 08:36:11,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:11,042 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 572 transitions. [2024-12-02 08:36:11,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:11,042 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 572 transitions. [2024-12-02 08:36:11,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:36:11,044 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:11,044 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:11,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:36:11,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-02 08:36:11,245 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:11,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:11,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1297495016, now seen corresponding path program 1 times [2024-12-02 08:36:11,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:11,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600239238] [2024-12-02 08:36:11,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:11,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:12,812 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:12,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:12,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600239238] [2024-12-02 08:36:12,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600239238] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:12,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:12,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:36:12,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495617626] [2024-12-02 08:36:12,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:12,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:36:12,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:12,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:36:12,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:36:12,814 INFO L87 Difference]: Start difference. First operand 388 states and 572 transitions. Second operand has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:36:13,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:13,348 INFO L93 Difference]: Finished difference Result 986 states and 1455 transitions. [2024-12-02 08:36:13,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:36:13,349 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-12-02 08:36:13,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:13,352 INFO L225 Difference]: With dead ends: 986 [2024-12-02 08:36:13,352 INFO L226 Difference]: Without dead ends: 601 [2024-12-02 08:36:13,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:36:13,354 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 120 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:13,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1030 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:36:13,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-12-02 08:36:13,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 527. [2024-12-02 08:36:13,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 466 states have (on average 1.4356223175965666) internal successors, (669), 468 states have internal predecessors, (669), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 08:36:13,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 781 transitions. [2024-12-02 08:36:13,387 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 781 transitions. Word has length 153 [2024-12-02 08:36:13,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:13,387 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 781 transitions. [2024-12-02 08:36:13,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:36:13,387 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 781 transitions. [2024-12-02 08:36:13,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:36:13,389 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:13,390 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:13,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:36:13,390 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:13,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:13,390 INFO L85 PathProgramCache]: Analyzing trace with hash 17631338, now seen corresponding path program 1 times [2024-12-02 08:36:13,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:13,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893920815] [2024-12-02 08:36:13,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:13,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:14,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:14,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893920815] [2024-12-02 08:36:14,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893920815] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:14,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:14,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:36:14,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705609299] [2024-12-02 08:36:14,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:14,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:36:14,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:14,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:36:14,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:36:14,381 INFO L87 Difference]: Start difference. First operand 527 states and 781 transitions. Second operand has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:36:15,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:15,337 INFO L93 Difference]: Finished difference Result 1223 states and 1810 transitions. [2024-12-02 08:36:15,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:36:15,337 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2024-12-02 08:36:15,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:15,341 INFO L225 Difference]: With dead ends: 1223 [2024-12-02 08:36:15,341 INFO L226 Difference]: Without dead ends: 699 [2024-12-02 08:36:15,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:36:15,343 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 655 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:15,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 1213 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:36:15,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-12-02 08:36:15,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 553. [2024-12-02 08:36:15,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 492 states have (on average 1.4451219512195121) internal successors, (711), 494 states have internal predecessors, (711), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 08:36:15,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 823 transitions. [2024-12-02 08:36:15,378 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 823 transitions. Word has length 153 [2024-12-02 08:36:15,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:15,379 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 823 transitions. [2024-12-02 08:36:15,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:36:15,379 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 823 transitions. [2024-12-02 08:36:15,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:36:15,381 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:15,381 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:15,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:36:15,381 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:15,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:15,382 INFO L85 PathProgramCache]: Analyzing trace with hash -569174676, now seen corresponding path program 1 times [2024-12-02 08:36:15,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:15,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512209806] [2024-12-02 08:36:15,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:15,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:16,710 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:16,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:16,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512209806] [2024-12-02 08:36:16,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512209806] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:16,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:16,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:36:16,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930266748] [2024-12-02 08:36:16,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:16,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:36:16,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:16,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:36:16,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:36:16,712 INFO L87 Difference]: Start difference. First operand 553 states and 823 transitions. Second operand has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:36:17,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:17,252 INFO L93 Difference]: Finished difference Result 1171 states and 1737 transitions. [2024-12-02 08:36:17,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:36:17,253 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-12-02 08:36:17,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:17,256 INFO L225 Difference]: With dead ends: 1171 [2024-12-02 08:36:17,256 INFO L226 Difference]: Without dead ends: 621 [2024-12-02 08:36:17,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:36:17,258 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 115 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:17,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1035 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:36:17,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-12-02 08:36:17,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 548. [2024-12-02 08:36:17,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 487 states have (on average 1.4435318275154003) internal successors, (703), 489 states have internal predecessors, (703), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 08:36:17,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 815 transitions. [2024-12-02 08:36:17,290 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 815 transitions. Word has length 153 [2024-12-02 08:36:17,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:17,290 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 815 transitions. [2024-12-02 08:36:17,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:36:17,291 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 815 transitions. [2024-12-02 08:36:17,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:36:17,293 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:17,293 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:17,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:36:17,293 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:17,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:17,293 INFO L85 PathProgramCache]: Analyzing trace with hash 561773252, now seen corresponding path program 1 times [2024-12-02 08:36:17,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:17,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915860518] [2024-12-02 08:36:17,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:17,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:17,419 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:17,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:17,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915860518] [2024-12-02 08:36:17,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915860518] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:17,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:17,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:36:17,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941913649] [2024-12-02 08:36:17,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:17,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:36:17,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:17,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:36:17,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:36:17,420 INFO L87 Difference]: Start difference. First operand 548 states and 815 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:17,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:17,509 INFO L93 Difference]: Finished difference Result 1128 states and 1678 transitions. [2024-12-02 08:36:17,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:36:17,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-12-02 08:36:17,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:17,512 INFO L225 Difference]: With dead ends: 1128 [2024-12-02 08:36:17,512 INFO L226 Difference]: Without dead ends: 583 [2024-12-02 08:36:17,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:36:17,514 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 78 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:17,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 642 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:36:17,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-12-02 08:36:17,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 543. [2024-12-02 08:36:17,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 482 states have (on average 1.4315352697095436) internal successors, (690), 484 states have internal predecessors, (690), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 08:36:17,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 802 transitions. [2024-12-02 08:36:17,543 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 802 transitions. Word has length 153 [2024-12-02 08:36:17,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:17,544 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 802 transitions. [2024-12-02 08:36:17,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:17,544 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 802 transitions. [2024-12-02 08:36:17,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:36:17,546 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:17,546 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:17,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:36:17,546 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:17,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:17,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1542718732, now seen corresponding path program 1 times [2024-12-02 08:36:17,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:17,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603632956] [2024-12-02 08:36:17,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:17,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:18,518 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:18,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:18,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603632956] [2024-12-02 08:36:18,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603632956] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:18,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:18,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:36:18,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998394938] [2024-12-02 08:36:18,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:18,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:36:18,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:18,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:36:18,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:36:18,520 INFO L87 Difference]: Start difference. First operand 543 states and 802 transitions. Second operand has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:19,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:19,019 INFO L93 Difference]: Finished difference Result 1279 states and 1887 transitions. [2024-12-02 08:36:19,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:36:19,020 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-12-02 08:36:19,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:19,023 INFO L225 Difference]: With dead ends: 1279 [2024-12-02 08:36:19,023 INFO L226 Difference]: Without dead ends: 739 [2024-12-02 08:36:19,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:36:19,025 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 110 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:19,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 1509 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:36:19,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-12-02 08:36:19,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 611. [2024-12-02 08:36:19,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 550 states have (on average 1.4454545454545455) internal successors, (795), 552 states have internal predecessors, (795), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 08:36:19,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 907 transitions. [2024-12-02 08:36:19,056 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 907 transitions. Word has length 153 [2024-12-02 08:36:19,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:19,056 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 907 transitions. [2024-12-02 08:36:19,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 9 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:19,056 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 907 transitions. [2024-12-02 08:36:19,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:36:19,058 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:19,058 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:19,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 08:36:19,058 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:19,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:19,059 INFO L85 PathProgramCache]: Analyzing trace with hash -2129524746, now seen corresponding path program 1 times [2024-12-02 08:36:19,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:19,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816405424] [2024-12-02 08:36:19,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:19,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:19,923 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:19,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:19,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816405424] [2024-12-02 08:36:19,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816405424] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:19,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:19,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:36:19,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116289612] [2024-12-02 08:36:19,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:19,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:36:19,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:19,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:36:19,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:36:19,924 INFO L87 Difference]: Start difference. First operand 611 states and 907 transitions. Second operand has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:20,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:20,250 INFO L93 Difference]: Finished difference Result 1309 states and 1930 transitions. [2024-12-02 08:36:20,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:36:20,250 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-12-02 08:36:20,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:20,252 INFO L225 Difference]: With dead ends: 1309 [2024-12-02 08:36:20,252 INFO L226 Difference]: Without dead ends: 701 [2024-12-02 08:36:20,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:36:20,254 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 122 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:20,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 866 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:36:20,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-12-02 08:36:20,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 680. [2024-12-02 08:36:20,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 599 states have (on average 1.4106844741235391) internal successors, (845), 602 states have internal predecessors, (845), 73 states have call successors, (73), 7 states have call predecessors, (73), 7 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-12-02 08:36:20,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 991 transitions. [2024-12-02 08:36:20,279 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 991 transitions. Word has length 153 [2024-12-02 08:36:20,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:20,279 INFO L471 AbstractCegarLoop]: Abstraction has 680 states and 991 transitions. [2024-12-02 08:36:20,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.2) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:20,279 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 991 transitions. [2024-12-02 08:36:20,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:36:20,281 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:20,281 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:20,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 08:36:20,281 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:20,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:20,282 INFO L85 PathProgramCache]: Analyzing trace with hash 788021926, now seen corresponding path program 1 times [2024-12-02 08:36:20,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:20,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273786700] [2024-12-02 08:36:20,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:20,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:21,295 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:21,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:21,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273786700] [2024-12-02 08:36:21,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273786700] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:21,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:21,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 08:36:21,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546851756] [2024-12-02 08:36:21,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:21,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:36:21,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:21,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:36:21,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:36:21,297 INFO L87 Difference]: Start difference. First operand 680 states and 991 transitions. Second operand has 12 states, 10 states have (on average 6.1) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:22,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:22,366 INFO L93 Difference]: Finished difference Result 1626 states and 2352 transitions. [2024-12-02 08:36:22,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 08:36:22,366 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.1) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-12-02 08:36:22,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:22,370 INFO L225 Difference]: With dead ends: 1626 [2024-12-02 08:36:22,370 INFO L226 Difference]: Without dead ends: 949 [2024-12-02 08:36:22,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:36:22,372 INFO L435 NwaCegarLoop]: 309 mSDtfsCounter, 733 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:22,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 2213 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 08:36:22,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-12-02 08:36:22,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 676. [2024-12-02 08:36:22,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 595 states have (on average 1.4067226890756304) internal successors, (837), 598 states have internal predecessors, (837), 73 states have call successors, (73), 7 states have call predecessors, (73), 7 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-12-02 08:36:22,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 983 transitions. [2024-12-02 08:36:22,419 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 983 transitions. Word has length 153 [2024-12-02 08:36:22,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:22,419 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 983 transitions. [2024-12-02 08:36:22,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.1) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:22,419 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 983 transitions. [2024-12-02 08:36:22,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:36:22,420 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:22,421 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:22,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 08:36:22,421 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:22,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:22,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1078647766, now seen corresponding path program 1 times [2024-12-02 08:36:22,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:22,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300115516] [2024-12-02 08:36:22,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:22,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:24,123 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:24,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:24,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300115516] [2024-12-02 08:36:24,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300115516] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:24,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:24,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:36:24,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968704957] [2024-12-02 08:36:24,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:24,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:36:24,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:24,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:36:24,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:36:24,125 INFO L87 Difference]: Start difference. First operand 676 states and 983 transitions. Second operand has 13 states, 11 states have (on average 5.545454545454546) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:27,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:27,343 INFO L93 Difference]: Finished difference Result 1600 states and 2315 transitions. [2024-12-02 08:36:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 08:36:27,344 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.545454545454546) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-12-02 08:36:27,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:27,347 INFO L225 Difference]: With dead ends: 1600 [2024-12-02 08:36:27,347 INFO L226 Difference]: Without dead ends: 927 [2024-12-02 08:36:27,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:36:27,348 INFO L435 NwaCegarLoop]: 298 mSDtfsCounter, 696 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 2477 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:27,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 2477 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 08:36:27,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2024-12-02 08:36:27,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 674. [2024-12-02 08:36:27,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 593 states have (on average 1.4047217537942664) internal successors, (833), 596 states have internal predecessors, (833), 73 states have call successors, (73), 7 states have call predecessors, (73), 7 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-12-02 08:36:27,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 979 transitions. [2024-12-02 08:36:27,406 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 979 transitions. Word has length 153 [2024-12-02 08:36:27,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:27,406 INFO L471 AbstractCegarLoop]: Abstraction has 674 states and 979 transitions. [2024-12-02 08:36:27,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.545454545454546) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:27,406 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 979 transitions. [2024-12-02 08:36:27,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:36:27,408 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:27,408 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:27,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 08:36:27,408 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:27,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:27,408 INFO L85 PathProgramCache]: Analyzing trace with hash -2052191822, now seen corresponding path program 1 times [2024-12-02 08:36:27,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:27,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654165404] [2024-12-02 08:36:27,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:27,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:27,896 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:27,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:27,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654165404] [2024-12-02 08:36:27,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654165404] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:27,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:27,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:36:27,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904222724] [2024-12-02 08:36:27,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:27,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:36:27,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:27,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:36:27,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:36:27,897 INFO L87 Difference]: Start difference. First operand 674 states and 979 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:36:28,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:28,180 INFO L93 Difference]: Finished difference Result 1507 states and 2178 transitions. [2024-12-02 08:36:28,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:36:28,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2024-12-02 08:36:28,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:28,183 INFO L225 Difference]: With dead ends: 1507 [2024-12-02 08:36:28,183 INFO L226 Difference]: Without dead ends: 836 [2024-12-02 08:36:28,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:36:28,184 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 131 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:28,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 1034 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:36:28,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2024-12-02 08:36:28,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 685. [2024-12-02 08:36:28,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 600 states have (on average 1.4) internal successors, (840), 603 states have internal predecessors, (840), 77 states have call successors, (77), 7 states have call predecessors, (77), 7 states have return successors, (77), 74 states have call predecessors, (77), 77 states have call successors, (77) [2024-12-02 08:36:28,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 994 transitions. [2024-12-02 08:36:28,232 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 994 transitions. Word has length 153 [2024-12-02 08:36:28,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:28,233 INFO L471 AbstractCegarLoop]: Abstraction has 685 states and 994 transitions. [2024-12-02 08:36:28,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:36:28,233 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 994 transitions. [2024-12-02 08:36:28,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:36:28,234 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:28,235 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:28,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 08:36:28,235 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:28,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:28,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1990152208, now seen corresponding path program 1 times [2024-12-02 08:36:28,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:28,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835981756] [2024-12-02 08:36:28,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:28,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:29,225 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:29,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:29,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835981756] [2024-12-02 08:36:29,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835981756] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:29,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:29,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:36:29,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500752940] [2024-12-02 08:36:29,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:29,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:36:29,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:29,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:36:29,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:36:29,227 INFO L87 Difference]: Start difference. First operand 685 states and 994 transitions. Second operand has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:36:29,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:29,817 INFO L93 Difference]: Finished difference Result 1517 states and 2199 transitions. [2024-12-02 08:36:29,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:36:29,817 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-12-02 08:36:29,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:29,820 INFO L225 Difference]: With dead ends: 1517 [2024-12-02 08:36:29,820 INFO L226 Difference]: Without dead ends: 835 [2024-12-02 08:36:29,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:36:29,821 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 109 mSDsluCounter, 1481 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:29,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 1729 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:36:29,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-12-02 08:36:29,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 768. [2024-12-02 08:36:29,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 673 states have (on average 1.3997028231797919) internal successors, (942), 677 states have internal predecessors, (942), 86 states have call successors, (86), 8 states have call predecessors, (86), 8 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 08:36:29,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1114 transitions. [2024-12-02 08:36:29,853 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1114 transitions. Word has length 153 [2024-12-02 08:36:29,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:29,854 INFO L471 AbstractCegarLoop]: Abstraction has 768 states and 1114 transitions. [2024-12-02 08:36:29,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.714285714285714) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:36:29,854 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1114 transitions. [2024-12-02 08:36:29,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:36:29,855 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:29,855 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:29,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 08:36:29,855 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:29,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:29,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1718009074, now seen corresponding path program 1 times [2024-12-02 08:36:29,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:29,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114448271] [2024-12-02 08:36:29,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:29,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:30,653 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:30,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:30,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114448271] [2024-12-02 08:36:30,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114448271] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:30,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:30,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 08:36:30,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162059015] [2024-12-02 08:36:30,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:30,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:36:30,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:30,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:36:30,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:36:30,654 INFO L87 Difference]: Start difference. First operand 768 states and 1114 transitions. Second operand has 11 states, 7 states have (on average 8.714285714285714) internal successors, (61), 11 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:36:31,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:31,199 INFO L93 Difference]: Finished difference Result 1600 states and 2317 transitions. [2024-12-02 08:36:31,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:36:31,200 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 7 states have (on average 8.714285714285714) internal successors, (61), 11 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 153 [2024-12-02 08:36:31,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:31,202 INFO L225 Difference]: With dead ends: 1600 [2024-12-02 08:36:31,202 INFO L226 Difference]: Without dead ends: 835 [2024-12-02 08:36:31,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:36:31,203 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 107 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:31,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 2106 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:36:31,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-12-02 08:36:31,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 767. [2024-12-02 08:36:31,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 672 states have (on average 1.3958333333333333) internal successors, (938), 676 states have internal predecessors, (938), 86 states have call successors, (86), 8 states have call predecessors, (86), 8 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 08:36:31,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1110 transitions. [2024-12-02 08:36:31,244 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1110 transitions. Word has length 153 [2024-12-02 08:36:31,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:31,244 INFO L471 AbstractCegarLoop]: Abstraction has 767 states and 1110 transitions. [2024-12-02 08:36:31,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 7 states have (on average 8.714285714285714) internal successors, (61), 11 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:36:31,244 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1110 transitions. [2024-12-02 08:36:31,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:36:31,245 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:31,245 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:31,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 08:36:31,245 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:31,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:31,246 INFO L85 PathProgramCache]: Analyzing trace with hash 412170648, now seen corresponding path program 1 times [2024-12-02 08:36:31,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:31,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827313737] [2024-12-02 08:36:31,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:31,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:31,331 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:31,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:31,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827313737] [2024-12-02 08:36:31,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827313737] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:31,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:31,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:36:31,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532906084] [2024-12-02 08:36:31,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:31,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:36:31,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:31,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:36:31,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:36:31,333 INFO L87 Difference]: Start difference. First operand 767 states and 1110 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:31,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:31,421 INFO L93 Difference]: Finished difference Result 1531 states and 2216 transitions. [2024-12-02 08:36:31,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:36:31,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-12-02 08:36:31,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:31,424 INFO L225 Difference]: With dead ends: 1531 [2024-12-02 08:36:31,424 INFO L226 Difference]: Without dead ends: 767 [2024-12-02 08:36:31,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:36:31,425 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 81 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:31,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 786 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:36:31,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-12-02 08:36:31,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 765. [2024-12-02 08:36:31,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 670 states have (on average 1.3940298507462687) internal successors, (934), 674 states have internal predecessors, (934), 86 states have call successors, (86), 8 states have call predecessors, (86), 8 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 08:36:31,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1106 transitions. [2024-12-02 08:36:31,454 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1106 transitions. Word has length 153 [2024-12-02 08:36:31,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:31,455 INFO L471 AbstractCegarLoop]: Abstraction has 765 states and 1106 transitions. [2024-12-02 08:36:31,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:31,455 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1106 transitions. [2024-12-02 08:36:31,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 08:36:31,456 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:31,456 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:31,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 08:36:31,456 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:31,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:31,456 INFO L85 PathProgramCache]: Analyzing trace with hash 254682777, now seen corresponding path program 1 times [2024-12-02 08:36:31,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:31,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881037566] [2024-12-02 08:36:31,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:31,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:31,501 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:31,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:31,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881037566] [2024-12-02 08:36:31,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881037566] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:31,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:31,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:36:31,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217978020] [2024-12-02 08:36:31,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:31,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:36:31,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:31,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:36:31,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:36:31,503 INFO L87 Difference]: Start difference. First operand 765 states and 1106 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:31,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:31,545 INFO L93 Difference]: Finished difference Result 1517 states and 2193 transitions. [2024-12-02 08:36:31,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:36:31,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-12-02 08:36:31,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:31,548 INFO L225 Difference]: With dead ends: 1517 [2024-12-02 08:36:31,548 INFO L226 Difference]: Without dead ends: 755 [2024-12-02 08:36:31,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:36:31,549 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:31,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 344 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:36:31,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-12-02 08:36:31,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 755. [2024-12-02 08:36:31,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 660 states have (on average 1.387878787878788) internal successors, (916), 664 states have internal predecessors, (916), 86 states have call successors, (86), 8 states have call predecessors, (86), 8 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 08:36:31,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1088 transitions. [2024-12-02 08:36:31,583 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1088 transitions. Word has length 154 [2024-12-02 08:36:31,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:31,583 INFO L471 AbstractCegarLoop]: Abstraction has 755 states and 1088 transitions. [2024-12-02 08:36:31,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:31,584 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1088 transitions. [2024-12-02 08:36:31,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:36:31,584 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:31,584 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:31,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 08:36:31,585 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:31,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:31,585 INFO L85 PathProgramCache]: Analyzing trace with hash -301787730, now seen corresponding path program 1 times [2024-12-02 08:36:31,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:31,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668728269] [2024-12-02 08:36:31,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:31,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:31,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:32,969 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:32,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:32,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668728269] [2024-12-02 08:36:32,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668728269] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:32,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:32,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 08:36:32,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14764359] [2024-12-02 08:36:32,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:32,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 08:36:32,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:32,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 08:36:32,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:36:32,971 INFO L87 Difference]: Start difference. First operand 755 states and 1088 transitions. Second operand has 18 states, 15 states have (on average 4.2) internal successors, (63), 18 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:36:35,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:35,470 INFO L93 Difference]: Finished difference Result 1886 states and 2691 transitions. [2024-12-02 08:36:35,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-12-02 08:36:35,470 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 4.2) internal successors, (63), 18 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-12-02 08:36:35,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:35,473 INFO L225 Difference]: With dead ends: 1886 [2024-12-02 08:36:35,473 INFO L226 Difference]: Without dead ends: 1134 [2024-12-02 08:36:35,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=326, Invalid=2026, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 08:36:35,475 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 1431 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1431 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:35,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1431 Valid, 2491 Invalid, 1844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 08:36:35,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2024-12-02 08:36:35,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 936. [2024-12-02 08:36:35,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 805 states have (on average 1.3577639751552795) internal successors, (1093), 811 states have internal predecessors, (1093), 116 states have call successors, (116), 14 states have call predecessors, (116), 14 states have return successors, (116), 110 states have call predecessors, (116), 116 states have call successors, (116) [2024-12-02 08:36:35,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1325 transitions. [2024-12-02 08:36:35,568 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1325 transitions. Word has length 155 [2024-12-02 08:36:35,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:35,568 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1325 transitions. [2024-12-02 08:36:35,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 4.2) internal successors, (63), 18 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:36:35,569 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1325 transitions. [2024-12-02 08:36:35,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:36:35,570 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:35,570 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:35,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 08:36:35,571 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:35,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:35,571 INFO L85 PathProgramCache]: Analyzing trace with hash -239748116, now seen corresponding path program 1 times [2024-12-02 08:36:35,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:35,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609357766] [2024-12-02 08:36:35,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:35,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:36,833 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:36,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:36,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609357766] [2024-12-02 08:36:36,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609357766] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:36,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:36,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 08:36:36,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838139785] [2024-12-02 08:36:36,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:36,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 08:36:36,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:36,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 08:36:36,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:36:36,835 INFO L87 Difference]: Start difference. First operand 936 states and 1325 transitions. Second operand has 19 states, 15 states have (on average 4.2) internal successors, (63), 19 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:36:38,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:38,748 INFO L93 Difference]: Finished difference Result 2117 states and 2980 transitions. [2024-12-02 08:36:38,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 08:36:38,748 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 4.2) internal successors, (63), 19 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 155 [2024-12-02 08:36:38,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:38,752 INFO L225 Difference]: With dead ends: 2117 [2024-12-02 08:36:38,752 INFO L226 Difference]: Without dead ends: 1184 [2024-12-02 08:36:38,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=259, Invalid=1301, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 08:36:38,754 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 1133 mSDsluCounter, 2723 mSDsCounter, 0 mSdLazyCounter, 2196 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 2973 SdHoareTripleChecker+Invalid, 2411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:38,754 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1133 Valid, 2973 Invalid, 2411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2196 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 08:36:38,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2024-12-02 08:36:38,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 979. [2024-12-02 08:36:38,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 832 states have (on average 1.3485576923076923) internal successors, (1122), 839 states have internal predecessors, (1122), 129 states have call successors, (129), 17 states have call predecessors, (129), 17 states have return successors, (129), 122 states have call predecessors, (129), 129 states have call successors, (129) [2024-12-02 08:36:38,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1380 transitions. [2024-12-02 08:36:38,821 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1380 transitions. Word has length 155 [2024-12-02 08:36:38,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:38,821 INFO L471 AbstractCegarLoop]: Abstraction has 979 states and 1380 transitions. [2024-12-02 08:36:38,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 4.2) internal successors, (63), 19 states have internal predecessors, (63), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:36:38,821 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1380 transitions. [2024-12-02 08:36:38,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:36:38,823 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:38,823 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:38,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 08:36:38,823 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:38,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:38,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1412848974, now seen corresponding path program 1 times [2024-12-02 08:36:38,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:38,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309306878] [2024-12-02 08:36:38,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:38,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:38,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:40,409 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:40,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:40,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309306878] [2024-12-02 08:36:40,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309306878] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:40,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:40,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-12-02 08:36:40,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084158002] [2024-12-02 08:36:40,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:40,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 08:36:40,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:40,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 08:36:40,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-12-02 08:36:40,410 INFO L87 Difference]: Start difference. First operand 979 states and 1380 transitions. Second operand has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:36:42,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:42,811 INFO L93 Difference]: Finished difference Result 2283 states and 3208 transitions. [2024-12-02 08:36:42,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-02 08:36:42,812 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-12-02 08:36:42,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:42,815 INFO L225 Difference]: With dead ends: 2283 [2024-12-02 08:36:42,815 INFO L226 Difference]: Without dead ends: 1347 [2024-12-02 08:36:42,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=324, Invalid=1932, Unknown=0, NotChecked=0, Total=2256 [2024-12-02 08:36:42,817 INFO L435 NwaCegarLoop]: 323 mSDtfsCounter, 676 mSDsluCounter, 4404 mSDsCounter, 0 mSdLazyCounter, 2960 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 4727 SdHoareTripleChecker+Invalid, 3121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 2960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:42,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 4727 Invalid, 3121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 2960 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 08:36:42,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2024-12-02 08:36:42,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1065. [2024-12-02 08:36:42,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 918 states have (on average 1.3540305010893245) internal successors, (1243), 925 states have internal predecessors, (1243), 129 states have call successors, (129), 17 states have call predecessors, (129), 17 states have return successors, (129), 122 states have call predecessors, (129), 129 states have call successors, (129) [2024-12-02 08:36:42,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1501 transitions. [2024-12-02 08:36:42,917 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1501 transitions. Word has length 155 [2024-12-02 08:36:42,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:42,917 INFO L471 AbstractCegarLoop]: Abstraction has 1065 states and 1501 transitions. [2024-12-02 08:36:42,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:36:42,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1501 transitions. [2024-12-02 08:36:42,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:36:42,918 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:42,918 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:42,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 08:36:42,919 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:42,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:42,919 INFO L85 PathProgramCache]: Analyzing trace with hash 826042960, now seen corresponding path program 1 times [2024-12-02 08:36:42,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:42,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769531570] [2024-12-02 08:36:42,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:42,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:43,100 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:43,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:43,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769531570] [2024-12-02 08:36:43,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769531570] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:43,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:43,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:36:43,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184238484] [2024-12-02 08:36:43,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:43,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:36:43,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:43,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:36:43,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:36:43,101 INFO L87 Difference]: Start difference. First operand 1065 states and 1501 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:43,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:43,380 INFO L93 Difference]: Finished difference Result 2343 states and 3298 transitions. [2024-12-02 08:36:43,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:36:43,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-12-02 08:36:43,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:43,385 INFO L225 Difference]: With dead ends: 2343 [2024-12-02 08:36:43,385 INFO L226 Difference]: Without dead ends: 1281 [2024-12-02 08:36:43,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:36:43,387 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 100 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:43,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 569 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:36:43,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2024-12-02 08:36:43,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1065. [2024-12-02 08:36:43,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 918 states have (on average 1.3496732026143792) internal successors, (1239), 925 states have internal predecessors, (1239), 129 states have call successors, (129), 17 states have call predecessors, (129), 17 states have return successors, (129), 122 states have call predecessors, (129), 129 states have call successors, (129) [2024-12-02 08:36:43,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1497 transitions. [2024-12-02 08:36:43,491 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1497 transitions. Word has length 155 [2024-12-02 08:36:43,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:43,491 INFO L471 AbstractCegarLoop]: Abstraction has 1065 states and 1497 transitions. [2024-12-02 08:36:43,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:43,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1497 transitions. [2024-12-02 08:36:43,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:36:43,493 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:43,493 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:43,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 08:36:43,493 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:43,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:43,493 INFO L85 PathProgramCache]: Analyzing trace with hash 903375884, now seen corresponding path program 1 times [2024-12-02 08:36:43,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:43,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854220603] [2024-12-02 08:36:43,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:43,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:43,808 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:43,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:43,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854220603] [2024-12-02 08:36:43,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854220603] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:43,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:43,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:36:43,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528430938] [2024-12-02 08:36:43,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:43,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:36:43,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:43,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:36:43,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:36:43,810 INFO L87 Difference]: Start difference. First operand 1065 states and 1497 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:36:44,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:44,093 INFO L93 Difference]: Finished difference Result 2109 states and 2962 transitions. [2024-12-02 08:36:44,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:36:44,094 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-12-02 08:36:44,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:44,098 INFO L225 Difference]: With dead ends: 2109 [2024-12-02 08:36:44,098 INFO L226 Difference]: Without dead ends: 1047 [2024-12-02 08:36:44,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:36:44,101 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 131 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:44,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 684 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:36:44,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2024-12-02 08:36:44,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1044. [2024-12-02 08:36:44,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 897 states have (on average 1.3444816053511706) internal successors, (1206), 904 states have internal predecessors, (1206), 129 states have call successors, (129), 17 states have call predecessors, (129), 17 states have return successors, (129), 122 states have call predecessors, (129), 129 states have call successors, (129) [2024-12-02 08:36:44,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1464 transitions. [2024-12-02 08:36:44,175 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1464 transitions. Word has length 155 [2024-12-02 08:36:44,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:44,175 INFO L471 AbstractCegarLoop]: Abstraction has 1044 states and 1464 transitions. [2024-12-02 08:36:44,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:36:44,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1464 transitions. [2024-12-02 08:36:44,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:36:44,177 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:44,177 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:44,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 08:36:44,177 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:44,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:44,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1867503378, now seen corresponding path program 1 times [2024-12-02 08:36:44,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:44,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157754650] [2024-12-02 08:36:44,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:44,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:44,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:44,619 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:44,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:44,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157754650] [2024-12-02 08:36:44,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157754650] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:44,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:44,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:36:44,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741464874] [2024-12-02 08:36:44,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:44,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:36:44,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:44,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:36:44,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:36:44,620 INFO L87 Difference]: Start difference. First operand 1044 states and 1464 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:36:44,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:44,913 INFO L93 Difference]: Finished difference Result 1868 states and 2637 transitions. [2024-12-02 08:36:44,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:36:44,914 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-12-02 08:36:44,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:44,917 INFO L225 Difference]: With dead ends: 1868 [2024-12-02 08:36:44,917 INFO L226 Difference]: Without dead ends: 1441 [2024-12-02 08:36:44,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:36:44,918 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 124 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:44,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1205 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:36:44,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2024-12-02 08:36:44,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1426. [2024-12-02 08:36:44,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1224 states have (on average 1.3513071895424837) internal successors, (1654), 1235 states have internal predecessors, (1654), 179 states have call successors, (179), 22 states have call predecessors, (179), 22 states have return successors, (179), 168 states have call predecessors, (179), 179 states have call successors, (179) [2024-12-02 08:36:45,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2012 transitions. [2024-12-02 08:36:45,010 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2012 transitions. Word has length 155 [2024-12-02 08:36:45,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:45,011 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2012 transitions. [2024-12-02 08:36:45,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:36:45,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2012 transitions. [2024-12-02 08:36:45,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:36:45,011 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:45,012 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:45,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 08:36:45,012 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:45,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:45,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1805463764, now seen corresponding path program 1 times [2024-12-02 08:36:45,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:45,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708584783] [2024-12-02 08:36:45,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:45,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:45,687 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:45,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:45,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708584783] [2024-12-02 08:36:45,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708584783] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:45,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:45,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:36:45,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246034104] [2024-12-02 08:36:45,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:45,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:36:45,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:45,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:36:45,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:36:45,688 INFO L87 Difference]: Start difference. First operand 1426 states and 2012 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:47,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:47,020 INFO L93 Difference]: Finished difference Result 3088 states and 4343 transitions. [2024-12-02 08:36:47,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 08:36:47,020 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-12-02 08:36:47,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:47,029 INFO L225 Difference]: With dead ends: 3088 [2024-12-02 08:36:47,029 INFO L226 Difference]: Without dead ends: 1665 [2024-12-02 08:36:47,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2024-12-02 08:36:47,031 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 958 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:47,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 2492 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:36:47,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2024-12-02 08:36:47,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1493. [2024-12-02 08:36:47,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1278 states have (on average 1.3482003129890454) internal successors, (1723), 1290 states have internal predecessors, (1723), 190 states have call successors, (190), 24 states have call predecessors, (190), 24 states have return successors, (190), 178 states have call predecessors, (190), 190 states have call successors, (190) [2024-12-02 08:36:47,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2103 transitions. [2024-12-02 08:36:47,130 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2103 transitions. Word has length 155 [2024-12-02 08:36:47,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:47,130 INFO L471 AbstractCegarLoop]: Abstraction has 1493 states and 2103 transitions. [2024-12-02 08:36:47,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:36:47,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2103 transitions. [2024-12-02 08:36:47,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:36:47,131 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:47,131 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:47,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 08:36:47,132 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:47,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:47,132 INFO L85 PathProgramCache]: Analyzing trace with hash 926008138, now seen corresponding path program 1 times [2024-12-02 08:36:47,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:47,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79858606] [2024-12-02 08:36:47,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:47,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:47,612 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:47,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:47,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79858606] [2024-12-02 08:36:47,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79858606] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:47,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:47,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:36:47,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988615241] [2024-12-02 08:36:47,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:47,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:36:47,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:47,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:36:47,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:36:47,614 INFO L87 Difference]: Start difference. First operand 1493 states and 2103 transitions. Second operand has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:48,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:48,003 INFO L93 Difference]: Finished difference Result 2978 states and 4195 transitions. [2024-12-02 08:36:48,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:36:48,004 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-12-02 08:36:48,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:48,007 INFO L225 Difference]: With dead ends: 2978 [2024-12-02 08:36:48,007 INFO L226 Difference]: Without dead ends: 1488 [2024-12-02 08:36:48,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:36:48,009 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 119 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:48,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 1287 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:36:48,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2024-12-02 08:36:48,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1483. [2024-12-02 08:36:48,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1268 states have (on average 1.3446372239747635) internal successors, (1705), 1280 states have internal predecessors, (1705), 190 states have call successors, (190), 24 states have call predecessors, (190), 24 states have return successors, (190), 178 states have call predecessors, (190), 190 states have call successors, (190) [2024-12-02 08:36:48,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2085 transitions. [2024-12-02 08:36:48,114 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2085 transitions. Word has length 155 [2024-12-02 08:36:48,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:48,114 INFO L471 AbstractCegarLoop]: Abstraction has 1483 states and 2085 transitions. [2024-12-02 08:36:48,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:48,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2085 transitions. [2024-12-02 08:36:48,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:36:48,115 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:48,115 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:48,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 08:36:48,115 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:48,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:48,115 INFO L85 PathProgramCache]: Analyzing trace with hash -940661554, now seen corresponding path program 1 times [2024-12-02 08:36:48,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:48,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606064408] [2024-12-02 08:36:48,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:48,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:48,934 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:48,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:48,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606064408] [2024-12-02 08:36:48,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606064408] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:48,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:48,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 08:36:48,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333246372] [2024-12-02 08:36:48,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:48,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 08:36:48,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:48,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 08:36:48,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:36:48,935 INFO L87 Difference]: Start difference. First operand 1483 states and 2085 transitions. Second operand has 16 states, 14 states have (on average 4.5) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:49,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:49,720 INFO L93 Difference]: Finished difference Result 3008 states and 4220 transitions. [2024-12-02 08:36:49,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 08:36:49,720 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.5) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-12-02 08:36:49,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:49,726 INFO L225 Difference]: With dead ends: 3008 [2024-12-02 08:36:49,726 INFO L226 Difference]: Without dead ends: 1528 [2024-12-02 08:36:49,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:36:49,729 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 125 mSDsluCounter, 2819 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 3095 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:49,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 3095 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:36:49,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2024-12-02 08:36:49,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1368. [2024-12-02 08:36:49,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 1170 states have (on average 1.3435897435897435) internal successors, (1572), 1180 states have internal predecessors, (1572), 174 states have call successors, (174), 23 states have call predecessors, (174), 23 states have return successors, (174), 164 states have call predecessors, (174), 174 states have call successors, (174) [2024-12-02 08:36:49,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1920 transitions. [2024-12-02 08:36:49,854 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1920 transitions. Word has length 155 [2024-12-02 08:36:49,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:49,854 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 1920 transitions. [2024-12-02 08:36:49,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.5) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:49,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1920 transitions. [2024-12-02 08:36:49,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:36:49,855 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:49,855 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:49,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 08:36:49,855 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:49,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:49,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1869854258, now seen corresponding path program 1 times [2024-12-02 08:36:49,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:49,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072452558] [2024-12-02 08:36:49,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:49,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:50,644 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:50,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:50,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072452558] [2024-12-02 08:36:50,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072452558] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:50,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:50,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 08:36:50,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243776310] [2024-12-02 08:36:50,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:50,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:36:50,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:50,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:36:50,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:36:50,646 INFO L87 Difference]: Start difference. First operand 1368 states and 1920 transitions. Second operand has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:51,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:51,349 INFO L93 Difference]: Finished difference Result 3028 states and 4255 transitions. [2024-12-02 08:36:51,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:36:51,350 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-12-02 08:36:51,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:51,354 INFO L225 Difference]: With dead ends: 3028 [2024-12-02 08:36:51,354 INFO L226 Difference]: Without dead ends: 1663 [2024-12-02 08:36:51,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:36:51,356 INFO L435 NwaCegarLoop]: 255 mSDtfsCounter, 123 mSDsluCounter, 2415 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:51,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 2670 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:36:51,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2024-12-02 08:36:51,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1653. [2024-12-02 08:36:51,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1419 states have (on average 1.3474277660324172) internal successors, (1912), 1432 states have internal predecessors, (1912), 207 states have call successors, (207), 26 states have call predecessors, (207), 26 states have return successors, (207), 194 states have call predecessors, (207), 207 states have call successors, (207) [2024-12-02 08:36:51,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2326 transitions. [2024-12-02 08:36:51,463 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2326 transitions. Word has length 155 [2024-12-02 08:36:51,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:51,463 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2326 transitions. [2024-12-02 08:36:51,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:51,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2326 transitions. [2024-12-02 08:36:51,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:36:51,464 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:51,464 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:51,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 08:36:51,464 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:51,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:51,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1611688820, now seen corresponding path program 1 times [2024-12-02 08:36:51,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:51,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909403303] [2024-12-02 08:36:51,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:51,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:52,085 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:52,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:52,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909403303] [2024-12-02 08:36:52,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909403303] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:52,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:52,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:36:52,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215500773] [2024-12-02 08:36:52,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:52,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:36:52,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:52,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:36:52,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:36:52,086 INFO L87 Difference]: Start difference. First operand 1653 states and 2326 transitions. Second operand has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:52,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:52,467 INFO L93 Difference]: Finished difference Result 3574 states and 5035 transitions. [2024-12-02 08:36:52,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:36:52,467 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-12-02 08:36:52,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:52,472 INFO L225 Difference]: With dead ends: 3574 [2024-12-02 08:36:52,472 INFO L226 Difference]: Without dead ends: 1924 [2024-12-02 08:36:52,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:36:52,475 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 109 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:52,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1246 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:36:52,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2024-12-02 08:36:52,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1713. [2024-12-02 08:36:52,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1479 states have (on average 1.3509127789046653) internal successors, (1998), 1492 states have internal predecessors, (1998), 207 states have call successors, (207), 26 states have call predecessors, (207), 26 states have return successors, (207), 194 states have call predecessors, (207), 207 states have call successors, (207) [2024-12-02 08:36:52,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2412 transitions. [2024-12-02 08:36:52,599 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2412 transitions. Word has length 155 [2024-12-02 08:36:52,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:52,600 INFO L471 AbstractCegarLoop]: Abstraction has 1713 states and 2412 transitions. [2024-12-02 08:36:52,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:52,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2412 transitions. [2024-12-02 08:36:52,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:36:52,601 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:52,601 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:52,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 08:36:52,601 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:52,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:52,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1413995788, now seen corresponding path program 1 times [2024-12-02 08:36:52,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:52,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378913820] [2024-12-02 08:36:52,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:52,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:52,980 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:52,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:52,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378913820] [2024-12-02 08:36:52,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378913820] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:52,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:52,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:36:52,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058610441] [2024-12-02 08:36:52,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:52,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:36:52,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:52,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:36:52,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:36:52,982 INFO L87 Difference]: Start difference. First operand 1713 states and 2412 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:36:53,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:53,308 INFO L93 Difference]: Finished difference Result 3864 states and 5443 transitions. [2024-12-02 08:36:53,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:36:53,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-12-02 08:36:53,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:53,313 INFO L225 Difference]: With dead ends: 3864 [2024-12-02 08:36:53,313 INFO L226 Difference]: Without dead ends: 2154 [2024-12-02 08:36:53,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:36:53,314 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 106 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:53,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1015 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:36:53,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2024-12-02 08:36:53,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 2146. [2024-12-02 08:36:53,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2146 states, 1852 states have (on average 1.349352051835853) internal successors, (2499), 1871 states have internal predecessors, (2499), 261 states have call successors, (261), 32 states have call predecessors, (261), 32 states have return successors, (261), 242 states have call predecessors, (261), 261 states have call successors, (261) [2024-12-02 08:36:53,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2146 states to 2146 states and 3021 transitions. [2024-12-02 08:36:53,435 INFO L78 Accepts]: Start accepts. Automaton has 2146 states and 3021 transitions. Word has length 155 [2024-12-02 08:36:53,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:53,435 INFO L471 AbstractCegarLoop]: Abstraction has 2146 states and 3021 transitions. [2024-12-02 08:36:53,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:36:53,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2146 states and 3021 transitions. [2024-12-02 08:36:53,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:36:53,436 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:53,436 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:53,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 08:36:53,436 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:53,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:53,437 INFO L85 PathProgramCache]: Analyzing trace with hash 53373776, now seen corresponding path program 1 times [2024-12-02 08:36:53,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:53,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222028241] [2024-12-02 08:36:53,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:53,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:53,949 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:53,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:53,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222028241] [2024-12-02 08:36:53,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222028241] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:53,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:53,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:36:53,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015342135] [2024-12-02 08:36:53,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:53,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:36:53,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:53,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:36:53,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:36:53,951 INFO L87 Difference]: Start difference. First operand 2146 states and 3021 transitions. Second operand has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:54,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:54,336 INFO L93 Difference]: Finished difference Result 4343 states and 6101 transitions. [2024-12-02 08:36:54,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:36:54,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-12-02 08:36:54,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:54,341 INFO L225 Difference]: With dead ends: 4343 [2024-12-02 08:36:54,341 INFO L226 Difference]: Without dead ends: 2200 [2024-12-02 08:36:54,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:36:54,343 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 111 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:54,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1049 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:36:54,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2024-12-02 08:36:54,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 1815. [2024-12-02 08:36:54,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1571 states have (on average 1.3469127943984722) internal successors, (2116), 1585 states have internal predecessors, (2116), 212 states have call successors, (212), 31 states have call predecessors, (212), 31 states have return successors, (212), 198 states have call predecessors, (212), 212 states have call successors, (212) [2024-12-02 08:36:54,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2540 transitions. [2024-12-02 08:36:54,562 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2540 transitions. Word has length 155 [2024-12-02 08:36:54,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:54,562 INFO L471 AbstractCegarLoop]: Abstraction has 1815 states and 2540 transitions. [2024-12-02 08:36:54,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:54,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2540 transitions. [2024-12-02 08:36:54,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:36:54,564 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:54,564 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:54,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 08:36:54,564 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:54,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:54,564 INFO L85 PathProgramCache]: Analyzing trace with hash 311539214, now seen corresponding path program 1 times [2024-12-02 08:36:54,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:54,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908758743] [2024-12-02 08:36:54,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:54,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:55,379 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:55,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:55,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908758743] [2024-12-02 08:36:55,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908758743] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:55,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:55,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 08:36:55,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351212883] [2024-12-02 08:36:55,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:55,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:36:55,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:55,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:36:55,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:36:55,380 INFO L87 Difference]: Start difference. First operand 1815 states and 2540 transitions. Second operand has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:56,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:56,189 INFO L93 Difference]: Finished difference Result 3823 states and 5338 transitions. [2024-12-02 08:36:56,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:36:56,190 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-12-02 08:36:56,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:56,194 INFO L225 Difference]: With dead ends: 3823 [2024-12-02 08:36:56,194 INFO L226 Difference]: Without dead ends: 2047 [2024-12-02 08:36:56,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:36:56,196 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 117 mSDsluCounter, 2752 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:56,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 3027 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:36:56,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2024-12-02 08:36:56,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 1980. [2024-12-02 08:36:56,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1980 states, 1704 states have (on average 1.34037558685446) internal successors, (2284), 1720 states have internal predecessors, (2284), 238 states have call successors, (238), 37 states have call predecessors, (238), 37 states have return successors, (238), 222 states have call predecessors, (238), 238 states have call successors, (238) [2024-12-02 08:36:56,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2760 transitions. [2024-12-02 08:36:56,335 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2760 transitions. Word has length 155 [2024-12-02 08:36:56,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:56,336 INFO L471 AbstractCegarLoop]: Abstraction has 1980 states and 2760 transitions. [2024-12-02 08:36:56,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:56,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2760 transitions. [2024-12-02 08:36:56,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:36:56,337 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:56,337 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:56,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 08:36:56,337 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:56,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:56,337 INFO L85 PathProgramCache]: Analyzing trace with hash -483650864, now seen corresponding path program 1 times [2024-12-02 08:36:56,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:56,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135150928] [2024-12-02 08:36:56,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:56,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:56,687 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:56,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:56,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135150928] [2024-12-02 08:36:56,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135150928] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:56,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:56,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:36:56,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623068690] [2024-12-02 08:36:56,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:56,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:36:56,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:56,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:36:56,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:36:56,688 INFO L87 Difference]: Start difference. First operand 1980 states and 2760 transitions. Second operand has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:57,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:57,065 INFO L93 Difference]: Finished difference Result 3938 states and 5482 transitions. [2024-12-02 08:36:57,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:36:57,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-12-02 08:36:57,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:57,070 INFO L225 Difference]: With dead ends: 3938 [2024-12-02 08:36:57,071 INFO L226 Difference]: Without dead ends: 1997 [2024-12-02 08:36:57,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:36:57,073 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 108 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:57,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1067 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:36:57,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2024-12-02 08:36:57,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1813. [2024-12-02 08:36:57,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1564 states have (on average 1.3363171355498722) internal successors, (2090), 1577 states have internal predecessors, (2090), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-12-02 08:36:57,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2512 transitions. [2024-12-02 08:36:57,209 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2512 transitions. Word has length 155 [2024-12-02 08:36:57,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:57,210 INFO L471 AbstractCegarLoop]: Abstraction has 1813 states and 2512 transitions. [2024-12-02 08:36:57,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.6) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:36:57,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2512 transitions. [2024-12-02 08:36:57,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:36:57,210 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:57,211 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:57,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 08:36:57,211 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:57,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:57,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1494768114, now seen corresponding path program 1 times [2024-12-02 08:36:57,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:57,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115067082] [2024-12-02 08:36:57,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:57,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:58,488 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:36:58,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:58,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115067082] [2024-12-02 08:36:58,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115067082] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:58,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:58,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 08:36:58,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056609193] [2024-12-02 08:36:58,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:58,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 08:36:58,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:58,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 08:36:58,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:36:58,490 INFO L87 Difference]: Start difference. First operand 1813 states and 2512 transitions. Second operand has 17 states, 14 states have (on average 4.5) internal successors, (63), 17 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:37:00,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:00,221 INFO L93 Difference]: Finished difference Result 3000 states and 4164 transitions. [2024-12-02 08:37:00,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 08:37:00,222 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 4.5) internal successors, (63), 17 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-12-02 08:37:00,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:00,228 INFO L225 Difference]: With dead ends: 3000 [2024-12-02 08:37:00,228 INFO L226 Difference]: Without dead ends: 2008 [2024-12-02 08:37:00,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:37:00,230 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 245 mSDsluCounter, 3654 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 3978 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:00,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 3978 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 08:37:00,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2024-12-02 08:37:00,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1811. [2024-12-02 08:37:00,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1562 states have (on average 1.3367477592829706) internal successors, (2088), 1575 states have internal predecessors, (2088), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-12-02 08:37:00,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2510 transitions. [2024-12-02 08:37:00,400 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2510 transitions. Word has length 155 [2024-12-02 08:37:00,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:00,400 INFO L471 AbstractCegarLoop]: Abstraction has 1811 states and 2510 transitions. [2024-12-02 08:37:00,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 4.5) internal successors, (63), 17 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:37:00,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2510 transitions. [2024-12-02 08:37:00,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:37:00,401 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:00,401 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:00,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 08:37:00,401 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:00,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:00,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1628781620, now seen corresponding path program 1 times [2024-12-02 08:37:00,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:00,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058972829] [2024-12-02 08:37:00,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:00,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:01,094 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:01,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:01,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058972829] [2024-12-02 08:37:01,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058972829] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:01,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:01,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:37:01,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442554957] [2024-12-02 08:37:01,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:01,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:37:01,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:01,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:37:01,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:37:01,096 INFO L87 Difference]: Start difference. First operand 1811 states and 2510 transitions. Second operand has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:01,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:01,690 INFO L93 Difference]: Finished difference Result 3778 states and 5237 transitions. [2024-12-02 08:37:01,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:37:01,691 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-12-02 08:37:01,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:01,696 INFO L225 Difference]: With dead ends: 3778 [2024-12-02 08:37:01,696 INFO L226 Difference]: Without dead ends: 2006 [2024-12-02 08:37:01,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:37:01,699 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 108 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 2285 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:01,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 2285 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:37:01,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2006 states. [2024-12-02 08:37:01,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2006 to 1807. [2024-12-02 08:37:01,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1558 states have (on average 1.337612323491656) internal successors, (2084), 1571 states have internal predecessors, (2084), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-12-02 08:37:01,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2506 transitions. [2024-12-02 08:37:01,953 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2506 transitions. Word has length 155 [2024-12-02 08:37:01,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:01,954 INFO L471 AbstractCegarLoop]: Abstraction has 1807 states and 2506 transitions. [2024-12-02 08:37:01,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:01,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2506 transitions. [2024-12-02 08:37:01,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 08:37:01,955 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:01,955 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:01,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 08:37:01,955 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:01,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:01,956 INFO L85 PathProgramCache]: Analyzing trace with hash 686625358, now seen corresponding path program 1 times [2024-12-02 08:37:01,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:01,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129642576] [2024-12-02 08:37:01,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:01,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:02,613 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:02,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:02,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129642576] [2024-12-02 08:37:02,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129642576] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:02,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:02,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:37:02,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454891846] [2024-12-02 08:37:02,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:02,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:37:02,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:02,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:37:02,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:37:02,614 INFO L87 Difference]: Start difference. First operand 1807 states and 2506 transitions. Second operand has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:03,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:03,304 INFO L93 Difference]: Finished difference Result 3759 states and 5216 transitions. [2024-12-02 08:37:03,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:37:03,305 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-12-02 08:37:03,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:03,309 INFO L225 Difference]: With dead ends: 3759 [2024-12-02 08:37:03,309 INFO L226 Difference]: Without dead ends: 1991 [2024-12-02 08:37:03,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:37:03,311 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 109 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:03,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2625 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:37:03,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2024-12-02 08:37:03,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1798. [2024-12-02 08:37:03,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1549 states have (on average 1.3376371852808264) internal successors, (2072), 1562 states have internal predecessors, (2072), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-12-02 08:37:03,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2494 transitions. [2024-12-02 08:37:03,464 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2494 transitions. Word has length 155 [2024-12-02 08:37:03,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:03,465 INFO L471 AbstractCegarLoop]: Abstraction has 1798 states and 2494 transitions. [2024-12-02 08:37:03,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 13 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:03,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2494 transitions. [2024-12-02 08:37:03,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 08:37:03,466 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:03,466 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:03,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 08:37:03,466 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:03,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:03,466 INFO L85 PathProgramCache]: Analyzing trace with hash -612042519, now seen corresponding path program 1 times [2024-12-02 08:37:03,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:03,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911466466] [2024-12-02 08:37:03,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:03,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:03,523 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:03,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:03,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911466466] [2024-12-02 08:37:03,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911466466] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:03,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:03,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:37:03,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471347319] [2024-12-02 08:37:03,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:03,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:37:03,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:03,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:37:03,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:37:03,524 INFO L87 Difference]: Start difference. First operand 1798 states and 2494 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:03,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:03,673 INFO L93 Difference]: Finished difference Result 3572 states and 4967 transitions. [2024-12-02 08:37:03,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:37:03,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 156 [2024-12-02 08:37:03,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:03,678 INFO L225 Difference]: With dead ends: 3572 [2024-12-02 08:37:03,678 INFO L226 Difference]: Without dead ends: 1813 [2024-12-02 08:37:03,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:37:03,681 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:03,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 351 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:37:03,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2024-12-02 08:37:03,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1813. [2024-12-02 08:37:03,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1564 states have (on average 1.3343989769820972) internal successors, (2087), 1577 states have internal predecessors, (2087), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-12-02 08:37:03,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2509 transitions. [2024-12-02 08:37:03,851 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2509 transitions. Word has length 156 [2024-12-02 08:37:03,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:03,851 INFO L471 AbstractCegarLoop]: Abstraction has 1813 states and 2509 transitions. [2024-12-02 08:37:03,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:03,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2509 transitions. [2024-12-02 08:37:03,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 08:37:03,852 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:03,852 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:03,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 08:37:03,852 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:03,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:03,853 INFO L85 PathProgramCache]: Analyzing trace with hash -353877081, now seen corresponding path program 1 times [2024-12-02 08:37:03,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:03,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863392623] [2024-12-02 08:37:03,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:03,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:03,981 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-12-02 08:37:03,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:03,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863392623] [2024-12-02 08:37:03,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863392623] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:37:03,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466991299] [2024-12-02 08:37:03,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:03,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:37:03,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:37:03,983 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:37:03,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:37:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:04,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:37:04,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:37:04,289 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:04,289 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:37:04,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466991299] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:04,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:37:04,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-12-02 08:37:04,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377774894] [2024-12-02 08:37:04,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:04,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:37:04,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:04,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:37:04,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:37:04,290 INFO L87 Difference]: Start difference. First operand 1813 states and 2509 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:04,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:04,453 INFO L93 Difference]: Finished difference Result 3647 states and 5042 transitions. [2024-12-02 08:37:04,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:37:04,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 156 [2024-12-02 08:37:04,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:04,458 INFO L225 Difference]: With dead ends: 3647 [2024-12-02 08:37:04,458 INFO L226 Difference]: Without dead ends: 1873 [2024-12-02 08:37:04,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:37:04,460 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:04,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 859 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:37:04,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1873 states. [2024-12-02 08:37:04,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1873 to 1828. [2024-12-02 08:37:04,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1828 states, 1579 states have (on average 1.331222292590247) internal successors, (2102), 1592 states have internal predecessors, (2102), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-12-02 08:37:04,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2524 transitions. [2024-12-02 08:37:04,606 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2524 transitions. Word has length 156 [2024-12-02 08:37:04,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:04,607 INFO L471 AbstractCegarLoop]: Abstraction has 1828 states and 2524 transitions. [2024-12-02 08:37:04,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:04,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2524 transitions. [2024-12-02 08:37:04,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 08:37:04,608 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:04,608 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:04,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:37:04,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-12-02 08:37:04,808 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:04,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:04,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1927855748, now seen corresponding path program 1 times [2024-12-02 08:37:04,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:04,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448494498] [2024-12-02 08:37:04,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:04,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:04,945 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:04,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:04,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448494498] [2024-12-02 08:37:04,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448494498] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:04,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:04,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:37:04,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064037155] [2024-12-02 08:37:04,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:04,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:37:04,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:04,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:37:04,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:37:04,946 INFO L87 Difference]: Start difference. First operand 1828 states and 2524 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:05,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:05,379 INFO L93 Difference]: Finished difference Result 5161 states and 7083 transitions. [2024-12-02 08:37:05,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:37:05,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 158 [2024-12-02 08:37:05,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:05,385 INFO L225 Difference]: With dead ends: 5161 [2024-12-02 08:37:05,385 INFO L226 Difference]: Without dead ends: 3372 [2024-12-02 08:37:05,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:37:05,387 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 149 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:05,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 567 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:37:05,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2024-12-02 08:37:05,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 2103. [2024-12-02 08:37:05,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2103 states, 1854 states have (on average 1.2955771305285868) internal successors, (2402), 1867 states have internal predecessors, (2402), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-12-02 08:37:05,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2103 states to 2103 states and 2824 transitions. [2024-12-02 08:37:05,552 INFO L78 Accepts]: Start accepts. Automaton has 2103 states and 2824 transitions. Word has length 158 [2024-12-02 08:37:05,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:05,552 INFO L471 AbstractCegarLoop]: Abstraction has 2103 states and 2824 transitions. [2024-12-02 08:37:05,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:05,552 INFO L276 IsEmpty]: Start isEmpty. Operand 2103 states and 2824 transitions. [2024-12-02 08:37:05,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 08:37:05,553 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:05,553 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:05,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 08:37:05,553 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:05,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:05,554 INFO L85 PathProgramCache]: Analyzing trace with hash -743455959, now seen corresponding path program 1 times [2024-12-02 08:37:05,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:05,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839756265] [2024-12-02 08:37:05,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:05,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:05,614 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:05,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:05,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839756265] [2024-12-02 08:37:05,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839756265] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:05,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:05,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:37:05,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116144003] [2024-12-02 08:37:05,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:05,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:37:05,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:05,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:37:05,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:37:05,616 INFO L87 Difference]: Start difference. First operand 2103 states and 2824 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:05,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:05,804 INFO L93 Difference]: Finished difference Result 4181 states and 5625 transitions. [2024-12-02 08:37:05,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:37:05,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 158 [2024-12-02 08:37:05,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:05,810 INFO L225 Difference]: With dead ends: 4181 [2024-12-02 08:37:05,810 INFO L226 Difference]: Without dead ends: 2117 [2024-12-02 08:37:05,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:37:05,814 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:05,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 351 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:37:05,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2024-12-02 08:37:06,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 2117. [2024-12-02 08:37:06,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 1868 states have (on average 1.2933618843683083) internal successors, (2416), 1881 states have internal predecessors, (2416), 211 states have call successors, (211), 37 states have call predecessors, (211), 37 states have return successors, (211), 198 states have call predecessors, (211), 211 states have call successors, (211) [2024-12-02 08:37:06,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2838 transitions. [2024-12-02 08:37:06,080 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2838 transitions. Word has length 158 [2024-12-02 08:37:06,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:06,080 INFO L471 AbstractCegarLoop]: Abstraction has 2117 states and 2838 transitions. [2024-12-02 08:37:06,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:06,080 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2838 transitions. [2024-12-02 08:37:06,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 08:37:06,082 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:06,082 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:06,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 08:37:06,082 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:06,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:06,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1031551403, now seen corresponding path program 1 times [2024-12-02 08:37:06,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:06,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920983122] [2024-12-02 08:37:06,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:06,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:06,422 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:06,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:06,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920983122] [2024-12-02 08:37:06,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920983122] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:06,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:06,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:37:06,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312960043] [2024-12-02 08:37:06,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:06,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:37:06,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:06,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:37:06,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:37:06,424 INFO L87 Difference]: Start difference. First operand 2117 states and 2838 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:06,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:06,754 INFO L93 Difference]: Finished difference Result 3521 states and 4628 transitions. [2024-12-02 08:37:06,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:37:06,754 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 158 [2024-12-02 08:37:06,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:06,758 INFO L225 Difference]: With dead ends: 3521 [2024-12-02 08:37:06,758 INFO L226 Difference]: Without dead ends: 3519 [2024-12-02 08:37:06,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:37:06,760 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 73 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:06,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 1072 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:37:06,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3519 states. [2024-12-02 08:37:07,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3519 to 3503. [2024-12-02 08:37:07,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3503 states, 3183 states have (on average 1.2767829092051524) internal successors, (4064), 3210 states have internal predecessors, (4064), 267 states have call successors, (267), 52 states have call predecessors, (267), 52 states have return successors, (267), 240 states have call predecessors, (267), 267 states have call successors, (267) [2024-12-02 08:37:07,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3503 states to 3503 states and 4598 transitions. [2024-12-02 08:37:07,026 INFO L78 Accepts]: Start accepts. Automaton has 3503 states and 4598 transitions. Word has length 158 [2024-12-02 08:37:07,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:07,026 INFO L471 AbstractCegarLoop]: Abstraction has 3503 states and 4598 transitions. [2024-12-02 08:37:07,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:07,026 INFO L276 IsEmpty]: Start isEmpty. Operand 3503 states and 4598 transitions. [2024-12-02 08:37:07,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 08:37:07,028 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:07,028 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:07,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 08:37:07,028 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:07,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:07,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1807863380, now seen corresponding path program 1 times [2024-12-02 08:37:07,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:07,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286224672] [2024-12-02 08:37:07,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:07,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:07,656 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:07,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:07,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286224672] [2024-12-02 08:37:07,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286224672] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:07,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:07,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:37:07,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812132839] [2024-12-02 08:37:07,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:07,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:37:07,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:07,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:37:07,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:37:07,657 INFO L87 Difference]: Start difference. First operand 3503 states and 4598 transitions. Second operand has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:08,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:08,323 INFO L93 Difference]: Finished difference Result 7112 states and 9332 transitions. [2024-12-02 08:37:08,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:37:08,323 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 159 [2024-12-02 08:37:08,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:08,328 INFO L225 Difference]: With dead ends: 7112 [2024-12-02 08:37:08,328 INFO L226 Difference]: Without dead ends: 3652 [2024-12-02 08:37:08,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:37:08,331 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 263 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:08,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1286 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:37:08,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2024-12-02 08:37:08,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3006. [2024-12-02 08:37:08,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3006 states, 2751 states have (on average 1.2784442021083242) internal successors, (3517), 2772 states have internal predecessors, (3517), 212 states have call successors, (212), 42 states have call predecessors, (212), 42 states have return successors, (212), 191 states have call predecessors, (212), 212 states have call successors, (212) [2024-12-02 08:37:08,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3006 states to 3006 states and 3941 transitions. [2024-12-02 08:37:08,526 INFO L78 Accepts]: Start accepts. Automaton has 3006 states and 3941 transitions. Word has length 159 [2024-12-02 08:37:08,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:08,526 INFO L471 AbstractCegarLoop]: Abstraction has 3006 states and 3941 transitions. [2024-12-02 08:37:08,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:08,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3006 states and 3941 transitions. [2024-12-02 08:37:08,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 08:37:08,528 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:08,528 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:08,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-02 08:37:08,528 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:08,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:08,528 INFO L85 PathProgramCache]: Analyzing trace with hash 603257263, now seen corresponding path program 1 times [2024-12-02 08:37:08,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:08,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033090470] [2024-12-02 08:37:08,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:08,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:09,134 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:09,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:09,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033090470] [2024-12-02 08:37:09,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033090470] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:09,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:09,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:37:09,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122094960] [2024-12-02 08:37:09,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:09,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:37:09,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:09,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:37:09,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:37:09,136 INFO L87 Difference]: Start difference. First operand 3006 states and 3941 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:09,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:09,451 INFO L93 Difference]: Finished difference Result 8087 states and 10568 transitions. [2024-12-02 08:37:09,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:37:09,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 160 [2024-12-02 08:37:09,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:09,457 INFO L225 Difference]: With dead ends: 8087 [2024-12-02 08:37:09,457 INFO L226 Difference]: Without dead ends: 5116 [2024-12-02 08:37:09,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:37:09,460 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 57 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:09,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 962 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:37:09,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5116 states. [2024-12-02 08:37:09,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5116 to 4806. [2024-12-02 08:37:09,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4806 states, 4551 states have (on average 1.2808174027686223) internal successors, (5829), 4572 states have internal predecessors, (5829), 212 states have call successors, (212), 42 states have call predecessors, (212), 42 states have return successors, (212), 191 states have call predecessors, (212), 212 states have call successors, (212) [2024-12-02 08:37:09,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4806 states to 4806 states and 6253 transitions. [2024-12-02 08:37:09,697 INFO L78 Accepts]: Start accepts. Automaton has 4806 states and 6253 transitions. Word has length 160 [2024-12-02 08:37:09,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:09,697 INFO L471 AbstractCegarLoop]: Abstraction has 4806 states and 6253 transitions. [2024-12-02 08:37:09,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:09,697 INFO L276 IsEmpty]: Start isEmpty. Operand 4806 states and 6253 transitions. [2024-12-02 08:37:09,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 08:37:09,699 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:09,699 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:09,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-12-02 08:37:09,699 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:09,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:09,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1989460657, now seen corresponding path program 1 times [2024-12-02 08:37:09,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:09,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152357787] [2024-12-02 08:37:09,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:09,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:10,060 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:10,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:10,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152357787] [2024-12-02 08:37:10,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152357787] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:10,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:10,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:37:10,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961440086] [2024-12-02 08:37:10,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:10,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:37:10,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:10,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:37:10,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:37:10,062 INFO L87 Difference]: Start difference. First operand 4806 states and 6253 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:10,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:10,426 INFO L93 Difference]: Finished difference Result 10918 states and 14147 transitions. [2024-12-02 08:37:10,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:37:10,426 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 160 [2024-12-02 08:37:10,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:10,433 INFO L225 Difference]: With dead ends: 10918 [2024-12-02 08:37:10,433 INFO L226 Difference]: Without dead ends: 6147 [2024-12-02 08:37:10,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:37:10,436 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 126 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:10,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 852 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:37:10,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6147 states. [2024-12-02 08:37:10,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6147 to 6101. [2024-12-02 08:37:10,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6101 states, 5780 states have (on average 1.273356401384083) internal successors, (7360), 5823 states have internal predecessors, (7360), 256 states have call successors, (256), 64 states have call predecessors, (256), 64 states have return successors, (256), 213 states have call predecessors, (256), 256 states have call successors, (256) [2024-12-02 08:37:10,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6101 states to 6101 states and 7872 transitions. [2024-12-02 08:37:10,743 INFO L78 Accepts]: Start accepts. Automaton has 6101 states and 7872 transitions. Word has length 160 [2024-12-02 08:37:10,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:10,744 INFO L471 AbstractCegarLoop]: Abstraction has 6101 states and 7872 transitions. [2024-12-02 08:37:10,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:10,744 INFO L276 IsEmpty]: Start isEmpty. Operand 6101 states and 7872 transitions. [2024-12-02 08:37:10,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 08:37:10,746 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:10,746 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:10,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-12-02 08:37:10,746 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:10,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:10,747 INFO L85 PathProgramCache]: Analyzing trace with hash 459533258, now seen corresponding path program 1 times [2024-12-02 08:37:10,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:10,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510225285] [2024-12-02 08:37:10,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:10,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:10,790 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:10,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:10,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510225285] [2024-12-02 08:37:10,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510225285] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:10,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:10,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:37:10,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536904699] [2024-12-02 08:37:10,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:10,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:37:10,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:10,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:37:10,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:37:10,791 INFO L87 Difference]: Start difference. First operand 6101 states and 7872 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:11,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:11,056 INFO L93 Difference]: Finished difference Result 12307 states and 15979 transitions. [2024-12-02 08:37:11,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:37:11,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2024-12-02 08:37:11,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:11,064 INFO L225 Difference]: With dead ends: 12307 [2024-12-02 08:37:11,064 INFO L226 Difference]: Without dead ends: 6241 [2024-12-02 08:37:11,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:37:11,069 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:11,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 352 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:37:11,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6241 states. [2024-12-02 08:37:11,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6241 to 6241. [2024-12-02 08:37:11,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6241 states, 5920 states have (on average 1.2668918918918919) internal successors, (7500), 5963 states have internal predecessors, (7500), 256 states have call successors, (256), 64 states have call predecessors, (256), 64 states have return successors, (256), 213 states have call predecessors, (256), 256 states have call successors, (256) [2024-12-02 08:37:11,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6241 states to 6241 states and 8012 transitions. [2024-12-02 08:37:11,372 INFO L78 Accepts]: Start accepts. Automaton has 6241 states and 8012 transitions. Word has length 160 [2024-12-02 08:37:11,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:11,372 INFO L471 AbstractCegarLoop]: Abstraction has 6241 states and 8012 transitions. [2024-12-02 08:37:11,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:11,372 INFO L276 IsEmpty]: Start isEmpty. Operand 6241 states and 8012 transitions. [2024-12-02 08:37:11,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 08:37:11,375 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:11,375 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:11,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-12-02 08:37:11,375 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:11,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:11,376 INFO L85 PathProgramCache]: Analyzing trace with hash 600081868, now seen corresponding path program 1 times [2024-12-02 08:37:11,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:11,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813696963] [2024-12-02 08:37:11,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:11,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:11,770 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:11,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:11,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813696963] [2024-12-02 08:37:11,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813696963] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:11,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:11,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:37:11,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011139478] [2024-12-02 08:37:11,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:11,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:37:11,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:11,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:37:11,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:37:11,771 INFO L87 Difference]: Start difference. First operand 6241 states and 8012 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:12,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:12,297 INFO L93 Difference]: Finished difference Result 10200 states and 13129 transitions. [2024-12-02 08:37:12,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:37:12,297 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 160 [2024-12-02 08:37:12,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:12,304 INFO L225 Difference]: With dead ends: 10200 [2024-12-02 08:37:12,304 INFO L226 Difference]: Without dead ends: 6244 [2024-12-02 08:37:12,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:37:12,306 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 121 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:12,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 851 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:37:12,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6244 states. [2024-12-02 08:37:12,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6244 to 6241. [2024-12-02 08:37:12,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6241 states, 5920 states have (on average 1.2626689189189189) internal successors, (7475), 5963 states have internal predecessors, (7475), 256 states have call successors, (256), 64 states have call predecessors, (256), 64 states have return successors, (256), 213 states have call predecessors, (256), 256 states have call successors, (256) [2024-12-02 08:37:12,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6241 states to 6241 states and 7987 transitions. [2024-12-02 08:37:12,613 INFO L78 Accepts]: Start accepts. Automaton has 6241 states and 7987 transitions. Word has length 160 [2024-12-02 08:37:12,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:12,614 INFO L471 AbstractCegarLoop]: Abstraction has 6241 states and 7987 transitions. [2024-12-02 08:37:12,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:12,614 INFO L276 IsEmpty]: Start isEmpty. Operand 6241 states and 7987 transitions. [2024-12-02 08:37:12,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 08:37:12,616 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:12,616 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:12,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-12-02 08:37:12,617 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:12,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:12,617 INFO L85 PathProgramCache]: Analyzing trace with hash 858247306, now seen corresponding path program 1 times [2024-12-02 08:37:12,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:12,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830768416] [2024-12-02 08:37:12,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:12,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:12,744 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-12-02 08:37:12,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:12,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830768416] [2024-12-02 08:37:12,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830768416] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:37:12,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715942551] [2024-12-02 08:37:12,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:12,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:37:12,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:37:12,746 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:37:12,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:37:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:13,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:37:13,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:37:13,049 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:13,049 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:37:13,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715942551] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:13,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:37:13,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2024-12-02 08:37:13,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466369337] [2024-12-02 08:37:13,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:13,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:37:13,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:13,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:37:13,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:37:13,050 INFO L87 Difference]: Start difference. First operand 6241 states and 7987 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:13,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:13,416 INFO L93 Difference]: Finished difference Result 12587 states and 16094 transitions. [2024-12-02 08:37:13,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:37:13,416 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2024-12-02 08:37:13,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:13,424 INFO L225 Difference]: With dead ends: 12587 [2024-12-02 08:37:13,424 INFO L226 Difference]: Without dead ends: 6381 [2024-12-02 08:37:13,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:37:13,428 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:13,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1025 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:37:13,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6381 states. [2024-12-02 08:37:13,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6381 to 6161. [2024-12-02 08:37:13,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6161 states, 5840 states have (on average 1.2611301369863013) internal successors, (7365), 5883 states have internal predecessors, (7365), 256 states have call successors, (256), 64 states have call predecessors, (256), 64 states have return successors, (256), 213 states have call predecessors, (256), 256 states have call successors, (256) [2024-12-02 08:37:13,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6161 states to 6161 states and 7877 transitions. [2024-12-02 08:37:13,839 INFO L78 Accepts]: Start accepts. Automaton has 6161 states and 7877 transitions. Word has length 160 [2024-12-02 08:37:13,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:13,839 INFO L471 AbstractCegarLoop]: Abstraction has 6161 states and 7877 transitions. [2024-12-02 08:37:13,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:13,839 INFO L276 IsEmpty]: Start isEmpty. Operand 6161 states and 7877 transitions. [2024-12-02 08:37:13,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 08:37:13,842 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:13,842 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:13,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 08:37:14,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-12-02 08:37:14,042 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:14,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:14,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1301681742, now seen corresponding path program 1 times [2024-12-02 08:37:14,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:14,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196545070] [2024-12-02 08:37:14,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:14,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:14,160 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:14,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:14,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196545070] [2024-12-02 08:37:14,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196545070] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:14,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:14,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:37:14,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213750458] [2024-12-02 08:37:14,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:14,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:37:14,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:14,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:37:14,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:37:14,161 INFO L87 Difference]: Start difference. First operand 6161 states and 7877 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:14,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:14,442 INFO L93 Difference]: Finished difference Result 12147 states and 15429 transitions. [2024-12-02 08:37:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:37:14,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2024-12-02 08:37:14,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:14,448 INFO L225 Difference]: With dead ends: 12147 [2024-12-02 08:37:14,448 INFO L226 Difference]: Without dead ends: 6021 [2024-12-02 08:37:14,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:37:14,453 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 1 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:14,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 517 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:37:14,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2024-12-02 08:37:14,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 6021. [2024-12-02 08:37:14,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6021 states, 5700 states have (on average 1.2184210526315788) internal successors, (6945), 5743 states have internal predecessors, (6945), 256 states have call successors, (256), 64 states have call predecessors, (256), 64 states have return successors, (256), 213 states have call predecessors, (256), 256 states have call successors, (256) [2024-12-02 08:37:14,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6021 states to 6021 states and 7457 transitions. [2024-12-02 08:37:14,769 INFO L78 Accepts]: Start accepts. Automaton has 6021 states and 7457 transitions. Word has length 160 [2024-12-02 08:37:14,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:14,769 INFO L471 AbstractCegarLoop]: Abstraction has 6021 states and 7457 transitions. [2024-12-02 08:37:14,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:14,769 INFO L276 IsEmpty]: Start isEmpty. Operand 6021 states and 7457 transitions. [2024-12-02 08:37:14,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 08:37:14,771 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:14,771 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:14,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-12-02 08:37:14,772 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:14,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:14,772 INFO L85 PathProgramCache]: Analyzing trace with hash -795053308, now seen corresponding path program 1 times [2024-12-02 08:37:14,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:14,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617948469] [2024-12-02 08:37:14,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:14,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:15,170 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:15,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:15,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617948469] [2024-12-02 08:37:15,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617948469] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:15,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:15,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:37:15,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396409343] [2024-12-02 08:37:15,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:15,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:37:15,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:15,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:37:15,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:37:15,171 INFO L87 Difference]: Start difference. First operand 6021 states and 7457 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:15,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:15,540 INFO L93 Difference]: Finished difference Result 12152 states and 15057 transitions. [2024-12-02 08:37:15,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:37:15,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 161 [2024-12-02 08:37:15,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:15,547 INFO L225 Difference]: With dead ends: 12152 [2024-12-02 08:37:15,547 INFO L226 Difference]: Without dead ends: 6166 [2024-12-02 08:37:15,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:37:15,551 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 121 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:15,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 627 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:37:15,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6166 states. [2024-12-02 08:37:15,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6166 to 6021. [2024-12-02 08:37:15,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6021 states, 5700 states have (on average 1.2126315789473685) internal successors, (6912), 5743 states have internal predecessors, (6912), 256 states have call successors, (256), 64 states have call predecessors, (256), 64 states have return successors, (256), 213 states have call predecessors, (256), 256 states have call successors, (256) [2024-12-02 08:37:15,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6021 states to 6021 states and 7424 transitions. [2024-12-02 08:37:15,843 INFO L78 Accepts]: Start accepts. Automaton has 6021 states and 7424 transitions. Word has length 161 [2024-12-02 08:37:15,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:15,844 INFO L471 AbstractCegarLoop]: Abstraction has 6021 states and 7424 transitions. [2024-12-02 08:37:15,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:15,844 INFO L276 IsEmpty]: Start isEmpty. Operand 6021 states and 7424 transitions. [2024-12-02 08:37:15,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 08:37:15,846 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:15,846 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:15,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-12-02 08:37:15,846 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:15,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:15,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1188080318, now seen corresponding path program 1 times [2024-12-02 08:37:15,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:15,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720535089] [2024-12-02 08:37:15,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:15,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:16,209 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:16,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:16,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720535089] [2024-12-02 08:37:16,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720535089] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:16,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:16,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:37:16,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266789731] [2024-12-02 08:37:16,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:16,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:37:16,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:16,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:37:16,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:37:16,211 INFO L87 Difference]: Start difference. First operand 6021 states and 7424 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:16,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:16,614 INFO L93 Difference]: Finished difference Result 12158 states and 14971 transitions. [2024-12-02 08:37:16,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:37:16,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 161 [2024-12-02 08:37:16,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:16,621 INFO L225 Difference]: With dead ends: 12158 [2024-12-02 08:37:16,621 INFO L226 Difference]: Without dead ends: 6172 [2024-12-02 08:37:16,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:37:16,625 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 100 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:16,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 616 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:37:16,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6172 states. [2024-12-02 08:37:16,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6172 to 6025. [2024-12-02 08:37:16,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6025 states, 5703 states have (on average 1.210590917061196) internal successors, (6904), 5746 states have internal predecessors, (6904), 256 states have call successors, (256), 65 states have call predecessors, (256), 65 states have return successors, (256), 213 states have call predecessors, (256), 256 states have call successors, (256) [2024-12-02 08:37:16,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6025 states to 6025 states and 7416 transitions. [2024-12-02 08:37:16,922 INFO L78 Accepts]: Start accepts. Automaton has 6025 states and 7416 transitions. Word has length 161 [2024-12-02 08:37:16,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:16,922 INFO L471 AbstractCegarLoop]: Abstraction has 6025 states and 7416 transitions. [2024-12-02 08:37:16,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:16,923 INFO L276 IsEmpty]: Start isEmpty. Operand 6025 states and 7416 transitions. [2024-12-02 08:37:16,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 08:37:16,925 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:16,925 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:16,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-12-02 08:37:16,925 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:16,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:16,925 INFO L85 PathProgramCache]: Analyzing trace with hash -991275417, now seen corresponding path program 1 times [2024-12-02 08:37:16,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:16,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692183087] [2024-12-02 08:37:16,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:16,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:17,227 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 15 proven. 39 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-12-02 08:37:17,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:17,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692183087] [2024-12-02 08:37:17,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692183087] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:37:17,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761789653] [2024-12-02 08:37:17,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:17,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:37:17,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:37:17,229 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:37:17,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:37:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:17,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 08:37:17,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:37:17,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:37:17,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-12-02 08:37:17,826 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:37:17,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 26 [2024-12-02 08:37:17,839 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 288 proven. 39 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-12-02 08:37:17,839 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:37:18,105 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 15 proven. 39 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-12-02 08:37:18,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761789653] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:37:18,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:37:18,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2024-12-02 08:37:18,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229018594] [2024-12-02 08:37:18,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:37:18,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:37:18,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:18,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:37:18,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:37:18,107 INFO L87 Difference]: Start difference. First operand 6025 states and 7416 transitions. Second operand has 13 states, 11 states have (on average 9.909090909090908) internal successors, (109), 13 states have internal predecessors, (109), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 2 states have call predecessors, (33), 4 states have call successors, (33) [2024-12-02 08:37:19,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:19,068 INFO L93 Difference]: Finished difference Result 11898 states and 14765 transitions. [2024-12-02 08:37:19,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-12-02 08:37:19,069 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.909090909090908) internal successors, (109), 13 states have internal predecessors, (109), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 2 states have call predecessors, (33), 4 states have call successors, (33) Word has length 161 [2024-12-02 08:37:19,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:19,078 INFO L225 Difference]: With dead ends: 11898 [2024-12-02 08:37:19,078 INFO L226 Difference]: Without dead ends: 5912 [2024-12-02 08:37:19,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 318 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=229, Invalid=763, Unknown=0, NotChecked=0, Total=992 [2024-12-02 08:37:19,083 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 523 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:19,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 954 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:37:19,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5912 states. [2024-12-02 08:37:19,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5912 to 5103. [2024-12-02 08:37:19,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 4693 states have (on average 1.1900703174941403) internal successors, (5585), 4736 states have internal predecessors, (5585), 312 states have call successors, (312), 97 states have call predecessors, (312), 97 states have return successors, (312), 269 states have call predecessors, (312), 312 states have call successors, (312) [2024-12-02 08:37:19,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 6209 transitions. [2024-12-02 08:37:19,491 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 6209 transitions. Word has length 161 [2024-12-02 08:37:19,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:19,491 INFO L471 AbstractCegarLoop]: Abstraction has 5103 states and 6209 transitions. [2024-12-02 08:37:19,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.909090909090908) internal successors, (109), 13 states have internal predecessors, (109), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 2 states have call predecessors, (33), 4 states have call successors, (33) [2024-12-02 08:37:19,491 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 6209 transitions. [2024-12-02 08:37:19,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 08:37:19,493 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:19,493 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:19,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 08:37:19,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:37:19,694 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:19,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:19,694 INFO L85 PathProgramCache]: Analyzing trace with hash 242058368, now seen corresponding path program 1 times [2024-12-02 08:37:19,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:19,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112155193] [2024-12-02 08:37:19,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:19,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:20,453 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:20,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:20,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112155193] [2024-12-02 08:37:20,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112155193] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:20,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:20,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:37:20,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23432892] [2024-12-02 08:37:20,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:20,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:37:20,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:20,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:37:20,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:37:20,455 INFO L87 Difference]: Start difference. First operand 5103 states and 6209 transitions. Second operand has 14 states, 12 states have (on average 5.916666666666667) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:37:21,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:21,680 INFO L93 Difference]: Finished difference Result 6186 states and 7491 transitions. [2024-12-02 08:37:21,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:37:21,680 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.916666666666667) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 163 [2024-12-02 08:37:21,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:21,687 INFO L225 Difference]: With dead ends: 6186 [2024-12-02 08:37:21,687 INFO L226 Difference]: Without dead ends: 6184 [2024-12-02 08:37:21,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:37:21,688 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 212 mSDsluCounter, 2006 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2222 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:21,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 2222 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:37:21,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6184 states. [2024-12-02 08:37:21,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6184 to 4508. [2024-12-02 08:37:21,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4508 states, 4258 states have (on average 1.1914044152184124) internal successors, (5073), 4279 states have internal predecessors, (5073), 185 states have call successors, (185), 64 states have call predecessors, (185), 64 states have return successors, (185), 164 states have call predecessors, (185), 185 states have call successors, (185) [2024-12-02 08:37:21,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4508 states to 4508 states and 5443 transitions. [2024-12-02 08:37:21,942 INFO L78 Accepts]: Start accepts. Automaton has 4508 states and 5443 transitions. Word has length 163 [2024-12-02 08:37:21,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:21,942 INFO L471 AbstractCegarLoop]: Abstraction has 4508 states and 5443 transitions. [2024-12-02 08:37:21,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.916666666666667) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:37:21,942 INFO L276 IsEmpty]: Start isEmpty. Operand 4508 states and 5443 transitions. [2024-12-02 08:37:21,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 08:37:21,944 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:21,944 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:21,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-12-02 08:37:21,944 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:21,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:21,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1822060643, now seen corresponding path program 1 times [2024-12-02 08:37:21,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:21,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877500923] [2024-12-02 08:37:21,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:21,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:37:22,010 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:37:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:37:22,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 08:37:22,095 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 08:37:22,096 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:37:22,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-12-02 08:37:22,099 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:22,167 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:37:22,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:37:22 BoogieIcfgContainer [2024-12-02 08:37:22,169 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:37:22,170 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:37:22,170 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:37:22,170 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:37:22,171 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:36:05" (3/4) ... [2024-12-02 08:37:22,173 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 08:37:22,174 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:37:22,174 INFO L158 Benchmark]: Toolchain (without parser) took 77683.09ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 118.4MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 82.5MB. Max. memory is 16.1GB. [2024-12-02 08:37:22,174 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:37:22,174 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.90ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 102.0MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:37:22,175 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.92ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 97.1MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:37:22,175 INFO L158 Benchmark]: Boogie Preprocessor took 72.95ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 92.0MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:37:22,175 INFO L158 Benchmark]: RCFGBuilder took 670.07ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 104.6MB in the end (delta: -12.6MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2024-12-02 08:37:22,175 INFO L158 Benchmark]: TraceAbstraction took 76629.27ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 104.0MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2024-12-02 08:37:22,175 INFO L158 Benchmark]: Witness Printer took 3.82ms. Allocated memory is still 1.5GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 129.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:37:22,176 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.90ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 102.0MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.92ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 97.1MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 72.95ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 92.0MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 670.07ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 104.6MB in the end (delta: -12.6MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. * TraceAbstraction took 76629.27ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 104.0MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. * Witness Printer took 3.82ms. Allocated memory is still 1.5GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 129.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 83, overapproximation of someBinaryDOUBLEComparisonOperation at line 83, overapproximation of someBinaryDOUBLEComparisonOperation at line 104. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 0, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 0, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 0, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 0, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 0, 0, 0, 1 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[5] = { 0, 0, 0, 0, 1 }; [L25-L27] double double_Array_0[2] = { 10.5, 99.25 }; [L25-L27] double double_Array_0[2] = { 10.5, 99.25 }; [L25-L27] double double_Array_0[2] = { 10.5, 99.25 }; [L28-L30] signed char signed_char_Array_0[1] = { 0 }; [L28-L30] signed char signed_char_Array_0[1] = { 0 }; [L31-L33] unsigned char unsigned_char_Array_0[2][3] = { {8, 64, 128}, {2, 16, 1} }; [L31-L33] unsigned char unsigned_char_Array_0[2][3] = { {8, 64, 128}, {2, 16, 1} }; [L31-L33] unsigned char unsigned_char_Array_0[2][3] = { {8, 64, 128}, {2, 16, 1} }; [L31-L33] unsigned char unsigned_char_Array_0[2][3] = { {8, 64, 128}, {2, 16, 1} }; [L31-L33] unsigned char unsigned_char_Array_0[2][3] = { {8, 64, 128}, {2, 16, 1} }; [L31-L33] unsigned char unsigned_char_Array_0[2][3] = { {8, 64, 128}, {2, 16, 1} }; [L31-L33] unsigned char unsigned_char_Array_0[2][3] = { {8, 64, 128}, {2, 16, 1} }; [L34] unsigned char last_1_unsigned_char_Array_0_0__1_ = 64; VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=0, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L108] isInitial = 1 [L109] FCALL initially() [L111] CALL updateLastVariables() [L101] EXPR unsigned_char_Array_0[0][1] [L101] last_1_unsigned_char_Array_0_0__1_ = unsigned_char_Array_0[0][1] [L111] RET updateLastVariables() [L112] CALL updateVariables() [L70] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L71] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L71] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L71] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L72] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L72] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L72] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L73] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L74] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L75] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L75] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L75] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L76] BOOL_unsigned_char_Array_0[3] = __VERIFIER_nondet_uchar() [L77] EXPR BOOL_unsigned_char_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[3] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[3] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L78] EXPR BOOL_unsigned_char_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L78] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[3] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L78] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[3] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L79] BOOL_unsigned_char_Array_0[4] = __VERIFIER_nondet_uchar() [L80] EXPR BOOL_unsigned_char_Array_0[4] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[4] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[4] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L81] EXPR BOOL_unsigned_char_Array_0[4] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L81] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[4] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L81] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[4] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] double_Array_0[1] = __VERIFIER_nondet_double() [L83] EXPR double_Array_0[1] [L83] EXPR double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F [L83] EXPR double_Array_0[1] [L83] EXPR double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR (double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR (double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] CALL assume_abort_if_not((double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] RET assume_abort_if_not((double_Array_0[1] >= -922337.2036854765600e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L84] signed_char_Array_0[0] = __VERIFIER_nondet_char() [L85] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L85] CALL assume_abort_if_not(signed_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L85] RET assume_abort_if_not(signed_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L86] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L86] CALL assume_abort_if_not(signed_char_Array_0[0] <= 16) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L86] RET assume_abort_if_not(signed_char_Array_0[0] <= 16) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L87] unsigned_char_Array_0[0][0] = __VERIFIER_nondet_uchar() [L88] EXPR unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L88] CALL assume_abort_if_not(unsigned_char_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L88] RET assume_abort_if_not(unsigned_char_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR unsigned_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] CALL assume_abort_if_not(unsigned_char_Array_0[0][0] <= 64) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] RET assume_abort_if_not(unsigned_char_Array_0[0][0] <= 64) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L90] unsigned_char_Array_0[1][0] = __VERIFIER_nondet_uchar() [L91] EXPR unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L91] CALL assume_abort_if_not(unsigned_char_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L91] RET assume_abort_if_not(unsigned_char_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L92] EXPR unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L92] CALL assume_abort_if_not(unsigned_char_Array_0[1][0] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L92] RET assume_abort_if_not(unsigned_char_Array_0[1][0] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L93] unsigned_char_Array_0[1][1] = __VERIFIER_nondet_uchar() [L94] EXPR unsigned_char_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L94] CALL assume_abort_if_not(unsigned_char_Array_0[1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L94] RET assume_abort_if_not(unsigned_char_Array_0[1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L95] EXPR unsigned_char_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L95] CALL assume_abort_if_not(unsigned_char_Array_0[1][1] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L95] RET assume_abort_if_not(unsigned_char_Array_0[1][1] <= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L96] unsigned_char_Array_0[0][2] = __VERIFIER_nondet_uchar() [L97] EXPR unsigned_char_Array_0[0][2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L97] CALL assume_abort_if_not(unsigned_char_Array_0[0][2] >= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L97] RET assume_abort_if_not(unsigned_char_Array_0[0][2] >= 127) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] EXPR unsigned_char_Array_0[0][2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] CALL assume_abort_if_not(unsigned_char_Array_0[0][2] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L98] RET assume_abort_if_not(unsigned_char_Array_0[0][2] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L112] RET updateVariables() [L113] CALL step() [L38] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L38] EXPR last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L38] COND TRUE (last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_ [L39] EXPR signed_char_Array_0[0] [L39] EXPR unsigned_char_Array_0[0][2] [L39] EXPR unsigned_char_Array_0[1][1] [L39] EXPR unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L39] EXPR ((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]) [L39] EXPR unsigned_char_Array_0[1][1] [L39] EXPR ((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L39] EXPR ((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))) [L39] EXPR signed_char_Array_0[0] [L39] EXPR ((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L39] unsigned_char_Array_0[1][2] = ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))) [L43] EXPR unsigned_char_Array_0[0][0] [L43] EXPR unsigned_char_Array_0[1][2] [L43] EXPR unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L43] COND FALSE !((unsigned_char_Array_0[0][0] + unsigned_char_Array_0[1][2]) >= unsigned_char_Array_0[1][0]) [L46] EXPR BOOL_unsigned_char_Array_0[0] [L46] BOOL_unsigned_char_Array_0[0] || BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L46] BOOL_unsigned_char_Array_0[0] || BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L46] COND TRUE BOOL_unsigned_char_Array_0[0] || BOOL_unsigned_char_Array_0[1] [L47] EXPR unsigned_char_Array_0[1][2] [L47] EXPR unsigned_char_Array_0[0][0] [L47] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L47] EXPR unsigned_char_Array_0[0][0] << signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L47] COND FALSE !(unsigned_char_Array_0[1][2] >= (unsigned_char_Array_0[0][0] << signed_char_Array_0[0])) [L54] EXPR BOOL_unsigned_char_Array_0[4] [L54] BOOL_unsigned_char_Array_0[2] = BOOL_unsigned_char_Array_0[4] [L59] EXPR unsigned_char_Array_0[0][1] [L59] unsigned char stepLocal_1 = unsigned_char_Array_0[0][1]; [L60] EXPR BOOL_unsigned_char_Array_0[2] [L60] unsigned char stepLocal_0 = BOOL_unsigned_char_Array_0[2]; [L61] BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L61] COND TRUE BOOL_unsigned_char_Array_0[2] [L62] stepLocal_0 || BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, stepLocal_1=64, unsigned_char_Array_0={7:0}] [L62] stepLocal_0 || BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L62] COND TRUE stepLocal_0 || BOOL_unsigned_char_Array_0[2] [L63] EXPR unsigned_char_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L63] COND TRUE stepLocal_1 > unsigned_char_Array_0[1][1] [L64] EXPR double_Array_0[1] [L64] double_Array_0[0] = double_Array_0[1] [L113] RET step() [L114] CALL, EXPR property() [L104] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR ((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0])))))) [L104] EXPR unsigned_char_Array_0[1][2] [L104] EXPR signed_char_Array_0[0] [L104] EXPR unsigned_char_Array_0[0][2] [L104] EXPR unsigned_char_Array_0[1][1] [L104] EXPR unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR ((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]) [L104] EXPR unsigned_char_Array_0[1][1] [L104] EXPR ((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR ((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))) [L104] EXPR signed_char_Array_0[0] [L104] EXPR ((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR ((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0])))))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR (((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0]))))))) && (BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR (((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0]))))))) && (BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1) [L104] EXPR BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1 [L104] EXPR BOOL_unsigned_char_Array_0[2] [L104] EXPR BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR (BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1 [L104] EXPR unsigned_char_Array_0[0][1] [L104] EXPR unsigned_char_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR (unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1 [L104] EXPR double_Array_0[0] [L104] EXPR double_Array_0[1] [L104] EXPR (unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR (BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR (((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0]))))))) && (BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR ((((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0]))))))) && (BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1)) && (((unsigned_char_Array_0[0][0] + unsigned_char_Array_0[1][2]) >= unsigned_char_Array_0[1][0]) ? (unsigned_char_Array_0[0][1] == ((unsigned char) unsigned_char_Array_0[1][1])) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR ((((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0]))))))) && (BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1)) && (((unsigned_char_Array_0[0][0] + unsigned_char_Array_0[1][2]) >= unsigned_char_Array_0[1][0]) ? (unsigned_char_Array_0[0][1] == ((unsigned char) unsigned_char_Array_0[1][1])) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR (((((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0]))))))) && (BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1)) && (((unsigned_char_Array_0[0][0] + unsigned_char_Array_0[1][2]) >= unsigned_char_Array_0[1][0]) ? (unsigned_char_Array_0[0][1] == ((unsigned char) unsigned_char_Array_0[1][1])) : 1)) && ((BOOL_unsigned_char_Array_0[0] || BOOL_unsigned_char_Array_0[1]) ? ((unsigned_char_Array_0[1][2] >= (unsigned_char_Array_0[0][0] << signed_char_Array_0[0])) ? ((unsigned_char_Array_0[1][1] > unsigned_char_Array_0[1][0]) ? (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[3])) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) 1))) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[4]))) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[3]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104] EXPR (((((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0]))))))) && (BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1)) && (((unsigned_char_Array_0[0][0] + unsigned_char_Array_0[1][2]) >= unsigned_char_Array_0[1][0]) ? (unsigned_char_Array_0[0][1] == ((unsigned char) unsigned_char_Array_0[1][1])) : 1)) && ((BOOL_unsigned_char_Array_0[0] || BOOL_unsigned_char_Array_0[1]) ? ((unsigned_char_Array_0[1][2] >= (unsigned_char_Array_0[0][0] << signed_char_Array_0[0])) ? ((unsigned_char_Array_0[1][1] > unsigned_char_Array_0[1][0]) ? (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[3])) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) 1))) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[4]))) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[3]))) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L104-L105] return (((((last_1_unsigned_char_Array_0_0__1_ >> signed_char_Array_0[0]) >= last_1_unsigned_char_Array_0_0__1_) ? (unsigned_char_Array_0[1][2] == ((unsigned char) ((((signed_char_Array_0[0]) < ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0])))))) ? (signed_char_Array_0[0]) : ((unsigned_char_Array_0[0][2] - ((((unsigned_char_Array_0[1][1]) > (unsigned_char_Array_0[1][0])) ? (unsigned_char_Array_0[1][1]) : (unsigned_char_Array_0[1][0]))))))))) : (unsigned_char_Array_0[1][2] == ((unsigned char) (((((unsigned_char_Array_0[1][1]) < (signed_char_Array_0[0])) ? (unsigned_char_Array_0[1][1]) : (signed_char_Array_0[0]))) + (((((unsigned_char_Array_0[0][0] + 1)) < (unsigned_char_Array_0[1][0])) ? ((unsigned_char_Array_0[0][0] + 1)) : (unsigned_char_Array_0[1][0]))))))) && (BOOL_unsigned_char_Array_0[2] ? ((BOOL_unsigned_char_Array_0[2] || BOOL_unsigned_char_Array_0[2]) ? ((unsigned_char_Array_0[0][1] > unsigned_char_Array_0[1][1]) ? (double_Array_0[0] == ((double) double_Array_0[1])) : 1) : 1) : 1)) && (((unsigned_char_Array_0[0][0] + unsigned_char_Array_0[1][2]) >= unsigned_char_Array_0[1][0]) ? (unsigned_char_Array_0[0][1] == ((unsigned char) unsigned_char_Array_0[1][1])) : 1)) && ((BOOL_unsigned_char_Array_0[0] || BOOL_unsigned_char_Array_0[1]) ? ((unsigned_char_Array_0[1][2] >= (unsigned_char_Array_0[0][0] << signed_char_Array_0[0])) ? ((unsigned_char_Array_0[1][1] > unsigned_char_Array_0[1][0]) ? (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[3])) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) 1))) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[4]))) : (BOOL_unsigned_char_Array_0[2] == ((unsigned char) BOOL_unsigned_char_Array_0[3]))) ; [L114] RET, EXPR property() [L114] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_char_Array_0_0__1_=64, signed_char_Array_0={6:0}, unsigned_char_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 126 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 76.5s, OverallIterations: 55, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 33.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11773 SdHoareTripleChecker+Valid, 19.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11715 mSDsluCounter, 73274 SdHoareTripleChecker+Invalid, 17.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61437 mSDsCounter, 1716 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27692 IncrementalHoareTripleChecker+Invalid, 29408 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1716 mSolverCounterUnsat, 11837 mSDtfsCounter, 27692 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1925 GetRequests, 1310 SyntacticMatches, 3 SemanticMatches, 612 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2065 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6241occurred in iteration=47, InterpolantAutomatonStates: 540, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.2s AutomataMinimizationTime, 54 MinimizatonAttempts, 9561 StatesRemovedByMinimization, 43 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 30.3s InterpolantComputationTime, 9337 NumberOfCodeBlocks, 9337 NumberOfCodeBlocksAsserted, 60 NumberOfCheckSat, 9275 ConstructedInterpolants, 0 QuantifiedInterpolants, 34429 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2599 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 60 InterpolantComputations, 53 PerfectInterpolantSequences, 40725/41040 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 08:37:22,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d9fefadeb2433964027133b2762439d0736284a9020eef9186f2d2400ba62b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:37:24,154 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:37:24,230 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 08:37:24,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:37:24,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:37:24,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:37:24,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:37:24,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:37:24,260 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:37:24,260 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:37:24,260 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:37:24,260 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:37:24,261 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:37:24,261 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:37:24,261 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:37:24,261 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:37:24,261 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:37:24,261 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:37:24,261 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:37:24,262 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:37:24,262 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:37:24,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:37:24,262 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:37:24,262 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 08:37:24,262 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 08:37:24,262 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 08:37:24,262 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:37:24,262 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:37:24,262 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:37:24,263 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:37:24,263 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:37:24,263 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:37:24,263 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:37:24,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:37:24,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:37:24,263 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:37:24,263 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:37:24,263 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:37:24,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:37:24,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:37:24,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:37:24,264 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:37:24,264 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:37:24,264 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:37:24,264 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 08:37:24,264 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 08:37:24,264 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:37:24,264 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:37:24,264 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:37:24,264 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:37:24,264 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d9fefadeb2433964027133b2762439d0736284a9020eef9186f2d2400ba62b5 [2024-12-02 08:37:24,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:37:24,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:37:24,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:37:24,492 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:37:24,492 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:37:24,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i [2024-12-02 08:37:27,226 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/data/4f7d9cf1b/04309481f3f14087920685e91aa9962e/FLAG7b180e394 [2024-12-02 08:37:27,422 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:37:27,423 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i [2024-12-02 08:37:27,431 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/data/4f7d9cf1b/04309481f3f14087920685e91aa9962e/FLAG7b180e394 [2024-12-02 08:37:27,767 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/data/4f7d9cf1b/04309481f3f14087920685e91aa9962e [2024-12-02 08:37:27,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:37:27,770 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:37:27,770 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:37:27,770 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:37:27,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:37:27,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:37:27" (1/1) ... [2024-12-02 08:37:27,774 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e9a0ef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:37:27, skipping insertion in model container [2024-12-02 08:37:27,774 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:37:27" (1/1) ... [2024-12-02 08:37:27,784 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:37:27,883 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i[916,929] [2024-12-02 08:37:27,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:37:27,944 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:37:27,953 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-56.i[916,929] [2024-12-02 08:37:27,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:37:28,018 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:37:28,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:37:28 WrapperNode [2024-12-02 08:37:28,019 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:37:28,020 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:37:28,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:37:28,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:37:28,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:37:28" (1/1) ... [2024-12-02 08:37:28,037 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:37:28" (1/1) ... [2024-12-02 08:37:28,066 INFO L138 Inliner]: procedures = 30, calls = 181, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 545 [2024-12-02 08:37:28,066 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:37:28,067 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:37:28,067 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:37:28,067 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:37:28,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:37:28" (1/1) ... [2024-12-02 08:37:28,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:37:28" (1/1) ... [2024-12-02 08:37:28,079 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:37:28" (1/1) ... [2024-12-02 08:37:28,094 INFO L175 MemorySlicer]: Split 147 memory accesses to 5 slices as follows [2, 41, 11, 16, 77]. 52 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 5, 2, 1, 6]. The 18 writes are split as follows [0, 8, 2, 1, 7]. [2024-12-02 08:37:28,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:37:28" (1/1) ... [2024-12-02 08:37:28,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:37:28" (1/1) ... [2024-12-02 08:37:28,118 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:37:28" (1/1) ... [2024-12-02 08:37:28,119 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:37:28" (1/1) ... [2024-12-02 08:37:28,124 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:37:28" (1/1) ... [2024-12-02 08:37:28,127 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:37:28" (1/1) ... [2024-12-02 08:37:28,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:37:28" (1/1) ... [2024-12-02 08:37:28,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:37:28,135 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:37:28,136 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:37:28,136 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:37:28,137 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:37:28" (1/1) ... [2024-12-02 08:37:28,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:37:28,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:37:28,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:37:28,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:37:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:37:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-12-02 08:37:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-12-02 08:37:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-12-02 08:37:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-12-02 08:37:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-12-02 08:37:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-12-02 08:37:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-12-02 08:37:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-12-02 08:37:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-12-02 08:37:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-12-02 08:37:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 08:37:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 08:37:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-12-02 08:37:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-12-02 08:37:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-12-02 08:37:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 08:37:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 08:37:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 08:37:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-12-02 08:37:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-12-02 08:37:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-12-02 08:37:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-12-02 08:37:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-12-02 08:37:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-12-02 08:37:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-12-02 08:37:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:37:28,194 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:37:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:37:28,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:37:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 08:37:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 08:37:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-12-02 08:37:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-12-02 08:37:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-12-02 08:37:28,323 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:37:28,325 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:37:28,878 INFO L? ?]: Removed 148 outVars from TransFormulas that were not future-live. [2024-12-02 08:37:28,878 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:37:28,888 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:37:28,888 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:37:28,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:37:28 BoogieIcfgContainer [2024-12-02 08:37:28,889 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:37:28,891 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:37:28,891 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:37:28,894 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:37:28,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:37:27" (1/3) ... [2024-12-02 08:37:28,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431c932a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:37:28, skipping insertion in model container [2024-12-02 08:37:28,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:37:28" (2/3) ... [2024-12-02 08:37:28,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431c932a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:37:28, skipping insertion in model container [2024-12-02 08:37:28,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:37:28" (3/3) ... [2024-12-02 08:37:28,896 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-56.i [2024-12-02 08:37:28,906 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:37:28,907 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-56.i that has 2 procedures, 118 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:37:28,949 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:37:28,960 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4a4f68b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:37:28,960 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:37:28,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 96 states have (on average 1.4270833333333333) internal successors, (137), 97 states have internal predecessors, (137), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 08:37:28,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 08:37:28,975 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:28,976 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:28,976 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:28,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:28,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1859210493, now seen corresponding path program 1 times [2024-12-02 08:37:28,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:37:28,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212517361] [2024-12-02 08:37:28,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:28,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:37:28,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:37:28,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:37:28,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 08:37:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:29,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:37:29,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:37:29,304 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-12-02 08:37:29,305 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:37:29,305 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:37:29,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212517361] [2024-12-02 08:37:29,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212517361] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:29,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:29,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:37:29,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025552057] [2024-12-02 08:37:29,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:29,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:37:29,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:37:29,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:37:29,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:37:29,332 INFO L87 Difference]: Start difference. First operand has 118 states, 96 states have (on average 1.4270833333333333) internal successors, (137), 97 states have internal predecessors, (137), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:29,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:29,362 INFO L93 Difference]: Finished difference Result 229 states and 363 transitions. [2024-12-02 08:37:29,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:37:29,364 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 149 [2024-12-02 08:37:29,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:29,370 INFO L225 Difference]: With dead ends: 229 [2024-12-02 08:37:29,370 INFO L226 Difference]: Without dead ends: 114 [2024-12-02 08:37:29,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:37:29,376 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:29,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:37:29,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-12-02 08:37:29,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-12-02 08:37:29,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 93 states have (on average 1.3978494623655915) internal successors, (130), 93 states have internal predecessors, (130), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 08:37:29,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 168 transitions. [2024-12-02 08:37:29,417 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 168 transitions. Word has length 149 [2024-12-02 08:37:29,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:29,417 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 168 transitions. [2024-12-02 08:37:29,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:37:29,418 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 168 transitions. [2024-12-02 08:37:29,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 08:37:29,421 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:29,421 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:29,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 08:37:29,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:37:29,622 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:29,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:29,622 INFO L85 PathProgramCache]: Analyzing trace with hash -187480061, now seen corresponding path program 1 times [2024-12-02 08:37:29,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:37:29,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105635297] [2024-12-02 08:37:29,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:29,623 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:37:29,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:37:29,625 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:37:29,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 08:37:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:29,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:37:29,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:37:29,944 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:29,944 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:37:29,944 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:37:29,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105635297] [2024-12-02 08:37:29,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2105635297] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:29,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:29,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:37:29,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156506773] [2024-12-02 08:37:29,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:29,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:37:29,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:37:29,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:37:29,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:37:29,948 INFO L87 Difference]: Start difference. First operand 114 states and 168 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:29,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:29,981 INFO L93 Difference]: Finished difference Result 226 states and 335 transitions. [2024-12-02 08:37:29,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:37:29,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2024-12-02 08:37:29,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:29,984 INFO L225 Difference]: With dead ends: 226 [2024-12-02 08:37:29,984 INFO L226 Difference]: Without dead ends: 115 [2024-12-02 08:37:29,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:37:29,986 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:29,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:37:29,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-12-02 08:37:29,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-12-02 08:37:29,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 94 states have internal predecessors, (131), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 08:37:29,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 169 transitions. [2024-12-02 08:37:29,996 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 169 transitions. Word has length 149 [2024-12-02 08:37:29,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:29,997 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 169 transitions. [2024-12-02 08:37:29,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:29,998 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 169 transitions. [2024-12-02 08:37:29,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 08:37:30,000 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:30,000 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:30,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 08:37:30,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:37:30,200 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:30,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:30,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1876423803, now seen corresponding path program 1 times [2024-12-02 08:37:30,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:37:30,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297627940] [2024-12-02 08:37:30,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:30,201 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:37:30,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:37:30,203 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:37:30,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 08:37:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:30,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 08:37:30,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:37:30,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:37:31,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2024-12-02 08:37:31,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2024-12-02 08:37:31,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2024-12-02 08:37:31,744 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:37:31,745 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:37:32,087 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:32,088 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:37:32,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297627940] [2024-12-02 08:37:32,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297627940] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:37:32,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:37:32,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 25 [2024-12-02 08:37:32,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363254459] [2024-12-02 08:37:32,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:32,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:37:32,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:37:32,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:37:32,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:37:32,090 INFO L87 Difference]: Start difference. First operand 115 states and 169 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:32,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:32,652 INFO L93 Difference]: Finished difference Result 312 states and 459 transitions. [2024-12-02 08:37:32,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:37:32,652 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2024-12-02 08:37:32,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:32,654 INFO L225 Difference]: With dead ends: 312 [2024-12-02 08:37:32,654 INFO L226 Difference]: Without dead ends: 200 [2024-12-02 08:37:32,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=90, Invalid=722, Unknown=0, NotChecked=0, Total=812 [2024-12-02 08:37:32,655 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 117 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:32,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1116 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:37:32,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-12-02 08:37:32,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 197. [2024-12-02 08:37:32,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 166 states have (on average 1.4096385542168675) internal successors, (234), 167 states have internal predecessors, (234), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 08:37:32,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 290 transitions. [2024-12-02 08:37:32,673 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 290 transitions. Word has length 149 [2024-12-02 08:37:32,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:32,674 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 290 transitions. [2024-12-02 08:37:32,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:32,674 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 290 transitions. [2024-12-02 08:37:32,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:37:32,677 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:32,677 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:32,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 08:37:32,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:37:32,877 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:32,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:32,878 INFO L85 PathProgramCache]: Analyzing trace with hash 985722527, now seen corresponding path program 1 times [2024-12-02 08:37:32,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:37:32,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350077935] [2024-12-02 08:37:32,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:32,879 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:37:32,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:37:32,881 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:37:32,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 08:37:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:33,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 08:37:33,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:37:33,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:37:33,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2024-12-02 08:37:33,939 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:37:33,939 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:37:34,114 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:34,114 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:37:34,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350077935] [2024-12-02 08:37:34,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350077935] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:37:34,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:37:34,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 18 [2024-12-02 08:37:34,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627239322] [2024-12-02 08:37:34,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:34,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:37:34,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:37:34,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:37:34,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:37:34,116 INFO L87 Difference]: Start difference. First operand 197 states and 290 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:34,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:34,229 INFO L93 Difference]: Finished difference Result 436 states and 645 transitions. [2024-12-02 08:37:34,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:37:34,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-12-02 08:37:34,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:34,233 INFO L225 Difference]: With dead ends: 436 [2024-12-02 08:37:34,233 INFO L226 Difference]: Without dead ends: 242 [2024-12-02 08:37:34,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:37:34,235 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 142 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:34,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 510 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:37:34,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-12-02 08:37:34,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 208. [2024-12-02 08:37:34,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 177 states have (on average 1.4180790960451977) internal successors, (251), 178 states have internal predecessors, (251), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-12-02 08:37:34,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 307 transitions. [2024-12-02 08:37:34,250 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 307 transitions. Word has length 150 [2024-12-02 08:37:34,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:34,251 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 307 transitions. [2024-12-02 08:37:34,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:34,251 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 307 transitions. [2024-12-02 08:37:34,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:37:34,253 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:34,254 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:34,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-12-02 08:37:34,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:37:34,454 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:34,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:34,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1804936461, now seen corresponding path program 1 times [2024-12-02 08:37:34,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:37:34,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997371761] [2024-12-02 08:37:34,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:34,456 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:37:34,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:37:34,458 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:37:34,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 08:37:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:34,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 08:37:34,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:37:34,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:37:34,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-12-02 08:37:34,906 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:34,906 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:37:34,906 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:37:34,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997371761] [2024-12-02 08:37:34,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997371761] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:34,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:34,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:37:34,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907274932] [2024-12-02 08:37:34,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:34,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:37:34,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:37:34,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:37:34,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:37:34,908 INFO L87 Difference]: Start difference. First operand 208 states and 307 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:37,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:37,301 INFO L93 Difference]: Finished difference Result 816 states and 1206 transitions. [2024-12-02 08:37:37,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:37:37,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-12-02 08:37:37,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:37,304 INFO L225 Difference]: With dead ends: 816 [2024-12-02 08:37:37,304 INFO L226 Difference]: Without dead ends: 611 [2024-12-02 08:37:37,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:37:37,305 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 420 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:37,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 920 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 08:37:37,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-12-02 08:37:37,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 424. [2024-12-02 08:37:37,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 363 states have (on average 1.4269972451790633) internal successors, (518), 365 states have internal predecessors, (518), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 08:37:37,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 630 transitions. [2024-12-02 08:37:37,341 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 630 transitions. Word has length 150 [2024-12-02 08:37:37,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:37,342 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 630 transitions. [2024-12-02 08:37:37,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:37,342 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 630 transitions. [2024-12-02 08:37:37,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:37:37,344 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:37,344 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:37,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-12-02 08:37:37,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:37:37,545 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:37,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:37,545 INFO L85 PathProgramCache]: Analyzing trace with hash 31387903, now seen corresponding path program 1 times [2024-12-02 08:37:37,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:37:37,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563227600] [2024-12-02 08:37:37,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:37,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:37:37,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:37:37,547 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:37:37,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-12-02 08:37:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:37,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-12-02 08:37:37,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:37:38,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-12-02 08:37:38,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 08:37:38,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-12-02 08:37:39,201 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:37:39,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 31 [2024-12-02 08:37:39,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 45 [2024-12-02 08:37:41,822 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:37:41,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 116 treesize of output 94 [2024-12-02 08:37:42,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 43 [2024-12-02 08:37:43,122 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:37:43,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 158 treesize of output 72 [2024-12-02 08:37:43,462 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 155 proven. 373 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-12-02 08:37:43,462 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:37:45,416 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:45,416 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:37:45,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1563227600] [2024-12-02 08:37:45,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1563227600] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:37:45,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:37:45,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [40] total 51 [2024-12-02 08:37:45,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798783904] [2024-12-02 08:37:45,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:45,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:37:45,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:37:45,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:37:45,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=2291, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 08:37:45,417 INFO L87 Difference]: Start difference. First operand 424 states and 630 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:49,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:49,236 INFO L93 Difference]: Finished difference Result 1115 states and 1649 transitions. [2024-12-02 08:37:49,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:37:49,237 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:37:49,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:49,239 INFO L225 Difference]: With dead ends: 1115 [2024-12-02 08:37:49,239 INFO L226 Difference]: Without dead ends: 694 [2024-12-02 08:37:49,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 251 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1174 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=378, Invalid=3044, Unknown=0, NotChecked=0, Total=3422 [2024-12-02 08:37:49,241 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 699 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:49,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 1409 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-12-02 08:37:49,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2024-12-02 08:37:49,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 482. [2024-12-02 08:37:49,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 421 states have (on average 1.4513064133016627) internal successors, (611), 423 states have internal predecessors, (611), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 08:37:49,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 723 transitions. [2024-12-02 08:37:49,282 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 723 transitions. Word has length 151 [2024-12-02 08:37:49,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:49,283 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 723 transitions. [2024-12-02 08:37:49,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:49,283 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 723 transitions. [2024-12-02 08:37:49,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:37:49,284 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:49,284 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:49,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-12-02 08:37:49,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:37:49,486 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:49,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:49,487 INFO L85 PathProgramCache]: Analyzing trace with hash -555418111, now seen corresponding path program 1 times [2024-12-02 08:37:49,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:37:49,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994242820] [2024-12-02 08:37:49,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:49,489 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:37:49,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:37:49,496 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:37:49,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-12-02 08:37:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:49,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 08:37:49,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:37:49,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 08:37:49,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-02 08:37:50,083 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:37:50,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 43 [2024-12-02 08:37:50,419 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:37:50,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 59 [2024-12-02 08:37:50,626 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:37:50,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 35 [2024-12-02 08:37:50,677 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 351 proven. 15 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-12-02 08:37:50,677 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:37:50,858 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:37:50,858 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:37:50,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994242820] [2024-12-02 08:37:50,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994242820] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:37:50,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:37:50,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 19 [2024-12-02 08:37:50,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37148952] [2024-12-02 08:37:50,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:50,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:37:50,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:37:50,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:37:50,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:37:50,859 INFO L87 Difference]: Start difference. First operand 482 states and 723 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:51,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:51,142 INFO L93 Difference]: Finished difference Result 1288 states and 1920 transitions. [2024-12-02 08:37:51,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:37:51,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:37:51,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:51,146 INFO L225 Difference]: With dead ends: 1288 [2024-12-02 08:37:51,146 INFO L226 Difference]: Without dead ends: 809 [2024-12-02 08:37:51,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:37:51,148 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 204 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:51,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 399 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:37:51,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2024-12-02 08:37:51,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 805. [2024-12-02 08:37:51,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 696 states have (on average 1.4224137931034482) internal successors, (990), 702 states have internal predecessors, (990), 100 states have call successors, (100), 8 states have call predecessors, (100), 8 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2024-12-02 08:37:51,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1190 transitions. [2024-12-02 08:37:51,195 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1190 transitions. Word has length 151 [2024-12-02 08:37:51,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:51,196 INFO L471 AbstractCegarLoop]: Abstraction has 805 states and 1190 transitions. [2024-12-02 08:37:51,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:37:51,196 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1190 transitions. [2024-12-02 08:37:51,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:37:51,197 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:51,198 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:51,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-12-02 08:37:51,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:37:51,398 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:51,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:51,399 INFO L85 PathProgramCache]: Analyzing trace with hash -391313923, now seen corresponding path program 1 times [2024-12-02 08:37:51,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:37:51,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568353032] [2024-12-02 08:37:51,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:51,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:37:51,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:37:51,401 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:37:51,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-12-02 08:37:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:51,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 08:37:51,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:37:51,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:37:52,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:37:52,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:37:53,299 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:37:53,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 70 [2024-12-02 08:37:53,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:37:53,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 115 treesize of output 84 [2024-12-02 08:37:53,869 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:37:53,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 55 [2024-12-02 08:37:54,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2024-12-02 08:37:54,360 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 444 proven. 42 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-12-02 08:37:54,360 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:37:55,554 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:37:55,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568353032] [2024-12-02 08:37:55,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568353032] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:37:55,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1901878864] [2024-12-02 08:37:55,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:55,554 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:37:55,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:37:55,556 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:37:55,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-12-02 08:37:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:56,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 08:37:56,135 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:37:56,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 08:37:56,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-12-02 08:37:57,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2024-12-02 08:37:59,015 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:37:59,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 68 [2024-12-02 08:37:59,300 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:37:59,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 71 [2024-12-02 08:37:59,828 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:37:59,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 50 [2024-12-02 08:37:59,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2024-12-02 08:38:00,197 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 257 proven. 6 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-12-02 08:38:00,197 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:38:00,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2024-12-02 08:38:00,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1901878864] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:38:00,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:38:00,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 24] total 50 [2024-12-02 08:38:00,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278524233] [2024-12-02 08:38:00,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:38:00,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-12-02 08:38:00,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:38:00,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-12-02 08:38:00,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=3590, Unknown=0, NotChecked=0, Total=3906 [2024-12-02 08:38:00,585 INFO L87 Difference]: Start difference. First operand 805 states and 1190 transitions. Second operand has 51 states, 45 states have (on average 3.0) internal successors, (135), 47 states have internal predecessors, (135), 12 states have call successors, (38), 9 states have call predecessors, (38), 12 states have return successors, (38), 9 states have call predecessors, (38), 12 states have call successors, (38) [2024-12-02 08:38:12,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:38:12,922 INFO L93 Difference]: Finished difference Result 1576 states and 2300 transitions. [2024-12-02 08:38:12,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-12-02 08:38:12,923 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 45 states have (on average 3.0) internal successors, (135), 47 states have internal predecessors, (135), 12 states have call successors, (38), 9 states have call predecessors, (38), 12 states have return successors, (38), 9 states have call predecessors, (38), 12 states have call successors, (38) Word has length 151 [2024-12-02 08:38:12,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:38:12,927 INFO L225 Difference]: With dead ends: 1576 [2024-12-02 08:38:12,927 INFO L226 Difference]: Without dead ends: 1173 [2024-12-02 08:38:12,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 299 SyntacticMatches, 2 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2963 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=1263, Invalid=9657, Unknown=0, NotChecked=0, Total=10920 [2024-12-02 08:38:12,930 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 1334 mSDsluCounter, 5212 mSDsCounter, 0 mSdLazyCounter, 4025 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 5470 SdHoareTripleChecker+Invalid, 4294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 4025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:38:12,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 5470 Invalid, 4294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 4025 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-12-02 08:38:12,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2024-12-02 08:38:12,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 829. [2024-12-02 08:38:12,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 714 states have (on average 1.411764705882353) internal successors, (1008), 720 states have internal predecessors, (1008), 100 states have call successors, (100), 14 states have call predecessors, (100), 14 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2024-12-02 08:38:12,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1208 transitions. [2024-12-02 08:38:12,987 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1208 transitions. Word has length 151 [2024-12-02 08:38:12,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:38:12,988 INFO L471 AbstractCegarLoop]: Abstraction has 829 states and 1208 transitions. [2024-12-02 08:38:12,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 45 states have (on average 3.0) internal successors, (135), 47 states have internal predecessors, (135), 12 states have call successors, (38), 9 states have call predecessors, (38), 12 states have return successors, (38), 9 states have call predecessors, (38), 12 states have call successors, (38) [2024-12-02 08:38:12,988 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1208 transitions. [2024-12-02 08:38:12,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:38:12,989 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:38:12,990 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:38:12,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-12-02 08:38:13,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-12-02 08:38:13,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:38:13,390 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:38:13,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:38:13,391 INFO L85 PathProgramCache]: Analyzing trace with hash 171936513, now seen corresponding path program 1 times [2024-12-02 08:38:13,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:38:13,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [829592854] [2024-12-02 08:38:13,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:38:13,391 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:38:13,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:38:13,393 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:38:13,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-12-02 08:38:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:38:13,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:38:13,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:38:13,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:38:13,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 16 [2024-12-02 08:38:13,636 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:38:13,636 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:38:13,636 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:38:13,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [829592854] [2024-12-02 08:38:13,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [829592854] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:38:13,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:38:13,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:38:13,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82142829] [2024-12-02 08:38:13,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:38:13,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:38:13,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:38:13,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:38:13,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:38:13,638 INFO L87 Difference]: Start difference. First operand 829 states and 1208 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:38:14,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:38:14,056 INFO L93 Difference]: Finished difference Result 1515 states and 2200 transitions. [2024-12-02 08:38:14,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:38:14,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:38:14,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:38:14,059 INFO L225 Difference]: With dead ends: 1515 [2024-12-02 08:38:14,059 INFO L226 Difference]: Without dead ends: 689 [2024-12-02 08:38:14,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:38:14,060 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 125 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:38:14,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 499 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:38:14,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-12-02 08:38:14,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 685. [2024-12-02 08:38:14,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 588 states have (on average 1.4047619047619047) internal successors, (826), 592 states have internal predecessors, (826), 82 states have call successors, (82), 14 states have call predecessors, (82), 14 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 08:38:14,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 990 transitions. [2024-12-02 08:38:14,124 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 990 transitions. Word has length 151 [2024-12-02 08:38:14,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:38:14,124 INFO L471 AbstractCegarLoop]: Abstraction has 685 states and 990 transitions. [2024-12-02 08:38:14,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:38:14,124 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 990 transitions. [2024-12-02 08:38:14,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:38:14,125 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:38:14,125 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:38:14,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-12-02 08:38:14,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:38:14,326 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:38:14,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:38:14,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1531428778, now seen corresponding path program 1 times [2024-12-02 08:38:14,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:38:14,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577521090] [2024-12-02 08:38:14,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:38:14,327 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:38:14,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:38:14,328 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:38:14,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-12-02 08:38:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:38:14,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:38:14,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:38:14,526 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:38:14,526 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:38:14,526 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:38:14,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577521090] [2024-12-02 08:38:14,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577521090] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:38:14,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:38:14,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:38:14,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840877247] [2024-12-02 08:38:14,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:38:14,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:38:14,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:38:14,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:38:14,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:38:14,528 INFO L87 Difference]: Start difference. First operand 685 states and 990 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:38:14,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:38:14,582 INFO L93 Difference]: Finished difference Result 1385 states and 2001 transitions. [2024-12-02 08:38:14,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:38:14,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:38:14,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:38:14,586 INFO L225 Difference]: With dead ends: 1385 [2024-12-02 08:38:14,586 INFO L226 Difference]: Without dead ends: 703 [2024-12-02 08:38:14,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:38:14,588 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:38:14,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 643 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:38:14,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2024-12-02 08:38:14,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 703. [2024-12-02 08:38:14,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 606 states have (on average 1.3927392739273927) internal successors, (844), 610 states have internal predecessors, (844), 82 states have call successors, (82), 14 states have call predecessors, (82), 14 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 08:38:14,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1008 transitions. [2024-12-02 08:38:14,650 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1008 transitions. Word has length 151 [2024-12-02 08:38:14,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:38:14,651 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 1008 transitions. [2024-12-02 08:38:14,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:38:14,651 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1008 transitions. [2024-12-02 08:38:14,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:38:14,653 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:38:14,653 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:38:14,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-12-02 08:38:14,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:38:14,853 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:38:14,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:38:14,854 INFO L85 PathProgramCache]: Analyzing trace with hash 667817279, now seen corresponding path program 1 times [2024-12-02 08:38:14,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:38:14,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324928972] [2024-12-02 08:38:14,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:38:14,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:38:14,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:38:14,856 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:38:14,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-12-02 08:38:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:38:15,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-02 08:38:15,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:38:15,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:38:15,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 08:38:15,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-02 08:38:16,756 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:38:16,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 60 [2024-12-02 08:38:17,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2024-12-02 08:38:17,203 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:38:17,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 43 [2024-12-02 08:38:17,362 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 464 proven. 42 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-12-02 08:38:17,362 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:38:18,007 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:38:18,007 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:38:18,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324928972] [2024-12-02 08:38:18,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324928972] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:38:18,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:38:18,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [27] total 33 [2024-12-02 08:38:18,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214506822] [2024-12-02 08:38:18,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:38:18,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:38:18,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:38:18,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:38:18,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=909, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 08:38:18,008 INFO L87 Difference]: Start difference. First operand 703 states and 1008 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:38:18,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:38:18,933 INFO L93 Difference]: Finished difference Result 1535 states and 2199 transitions. [2024-12-02 08:38:18,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:38:18,934 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:38:18,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:38:18,938 INFO L225 Difference]: With dead ends: 1535 [2024-12-02 08:38:18,938 INFO L226 Difference]: Without dead ends: 835 [2024-12-02 08:38:18,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=171, Invalid=1089, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 08:38:18,940 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 178 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:38:18,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 670 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:38:18,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-12-02 08:38:19,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 718. [2024-12-02 08:38:19,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 621 states have (on average 1.394524959742351) internal successors, (866), 625 states have internal predecessors, (866), 82 states have call successors, (82), 14 states have call predecessors, (82), 14 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 08:38:19,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 1030 transitions. [2024-12-02 08:38:19,006 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 1030 transitions. Word has length 151 [2024-12-02 08:38:19,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:38:19,006 INFO L471 AbstractCegarLoop]: Abstraction has 718 states and 1030 transitions. [2024-12-02 08:38:19,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:38:19,006 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1030 transitions. [2024-12-02 08:38:19,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:38:19,008 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:38:19,008 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:38:19,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-12-02 08:38:19,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:38:19,209 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:38:19,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:38:19,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1954615937, now seen corresponding path program 1 times [2024-12-02 08:38:19,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:38:19,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077703927] [2024-12-02 08:38:19,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:38:19,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:38:19,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:38:19,211 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:38:19,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-12-02 08:38:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:38:19,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:38:19,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:38:19,449 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:38:19,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-12-02 08:38:19,512 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:38:19,512 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:38:19,513 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:38:19,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077703927] [2024-12-02 08:38:19,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1077703927] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:38:19,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:38:19,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:38:19,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690456634] [2024-12-02 08:38:19,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:38:19,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:38:19,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:38:19,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:38:19,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:38:19,514 INFO L87 Difference]: Start difference. First operand 718 states and 1030 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:38:20,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:38:20,001 INFO L93 Difference]: Finished difference Result 1584 states and 2263 transitions. [2024-12-02 08:38:20,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:38:20,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:38:20,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:38:20,004 INFO L225 Difference]: With dead ends: 1584 [2024-12-02 08:38:20,004 INFO L226 Difference]: Without dead ends: 869 [2024-12-02 08:38:20,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:38:20,005 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 124 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:38:20,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 778 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:38:20,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2024-12-02 08:38:20,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 865. [2024-12-02 08:38:20,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 737 states have (on average 1.3772048846675713) internal successors, (1015), 743 states have internal predecessors, (1015), 108 states have call successors, (108), 19 states have call predecessors, (108), 19 states have return successors, (108), 102 states have call predecessors, (108), 108 states have call successors, (108) [2024-12-02 08:38:20,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1231 transitions. [2024-12-02 08:38:20,059 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1231 transitions. Word has length 151 [2024-12-02 08:38:20,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:38:20,059 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1231 transitions. [2024-12-02 08:38:20,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:38:20,059 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1231 transitions. [2024-12-02 08:38:20,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:38:20,060 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:38:20,060 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:38:20,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-12-02 08:38:20,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:38:20,261 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:38:20,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:38:20,261 INFO L85 PathProgramCache]: Analyzing trace with hash 2095164547, now seen corresponding path program 1 times [2024-12-02 08:38:20,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:38:20,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768590514] [2024-12-02 08:38:20,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:38:20,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:38:20,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:38:20,264 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:38:20,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-12-02 08:38:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:38:20,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-12-02 08:38:20,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:38:21,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-12-02 08:38:21,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 08:38:21,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 08:38:21,654 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:38:21,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-12-02 08:38:21,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2024-12-02 08:38:23,830 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:38:23,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 115 treesize of output 93 [2024-12-02 08:38:24,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:38:24,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 100 treesize of output 54 [2024-12-02 08:38:24,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2024-12-02 08:38:25,720 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 149 proven. 376 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-12-02 08:38:25,720 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:38:28,707 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:38:28,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768590514] [2024-12-02 08:38:28,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768590514] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:38:28,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1016505691] [2024-12-02 08:38:28,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:38:28,708 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:38:28,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:38:28,709 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:38:28,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-12-02 08:38:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:38:29,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 08:38:29,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:38:29,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 08:38:29,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-12-02 08:38:30,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2024-12-02 08:38:30,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2024-12-02 08:38:33,966 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:38:33,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 72 [2024-12-02 08:38:35,206 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:38:35,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 91 treesize of output 51 [2024-12-02 08:38:35,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2024-12-02 08:38:36,185 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 355 proven. 12 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2024-12-02 08:38:36,185 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:38:38,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 65 [2024-12-02 08:38:38,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1016505691] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:38:38,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:38:38,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 26] total 59 [2024-12-02 08:38:38,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000182881] [2024-12-02 08:38:38,733 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:38:38,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-12-02 08:38:38,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:38:38,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-12-02 08:38:38,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=607, Invalid=6703, Unknown=0, NotChecked=0, Total=7310 [2024-12-02 08:38:38,735 INFO L87 Difference]: Start difference. First operand 865 states and 1231 transitions. Second operand has 60 states, 53 states have (on average 2.7735849056603774) internal successors, (147), 53 states have internal predecessors, (147), 16 states have call successors, (38), 12 states have call predecessors, (38), 16 states have return successors, (38), 13 states have call predecessors, (38), 16 states have call successors, (38) [2024-12-02 08:39:01,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:39:01,757 INFO L93 Difference]: Finished difference Result 1903 states and 2691 transitions. [2024-12-02 08:39:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-12-02 08:39:01,758 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 53 states have (on average 2.7735849056603774) internal successors, (147), 53 states have internal predecessors, (147), 16 states have call successors, (38), 12 states have call predecessors, (38), 16 states have return successors, (38), 13 states have call predecessors, (38), 16 states have call successors, (38) Word has length 151 [2024-12-02 08:39:01,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:39:01,760 INFO L225 Difference]: With dead ends: 1903 [2024-12-02 08:39:01,760 INFO L226 Difference]: Without dead ends: 1041 [2024-12-02 08:39:01,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 286 SyntacticMatches, 4 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5746 ImplicationChecksByTransitivity, 23.0s TimeCoverageRelationStatistics Valid=2339, Invalid=16293, Unknown=0, NotChecked=0, Total=18632 [2024-12-02 08:39:01,764 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 1118 mSDsluCounter, 6175 mSDsCounter, 0 mSdLazyCounter, 5580 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 6345 SdHoareTripleChecker+Invalid, 5833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 5580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:39:01,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 6345 Invalid, 5833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 5580 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2024-12-02 08:39:01,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-12-02 08:39:01,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 642. [2024-12-02 08:39:01,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 555 states have (on average 1.390990990990991) internal successors, (772), 558 states have internal predecessors, (772), 73 states have call successors, (73), 13 states have call predecessors, (73), 13 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-12-02 08:39:01,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 918 transitions. [2024-12-02 08:39:01,828 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 918 transitions. Word has length 151 [2024-12-02 08:39:01,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:39:01,828 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 918 transitions. [2024-12-02 08:39:01,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 53 states have (on average 2.7735849056603774) internal successors, (147), 53 states have internal predecessors, (147), 16 states have call successors, (38), 12 states have call predecessors, (38), 16 states have return successors, (38), 13 states have call predecessors, (38), 16 states have call successors, (38) [2024-12-02 08:39:01,829 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 918 transitions. [2024-12-02 08:39:01,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:39:01,830 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:39:01,830 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:39:01,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-12-02 08:39:02,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-12-02 08:39:02,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:39:02,231 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:39:02,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:39:02,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1703921983, now seen corresponding path program 1 times [2024-12-02 08:39:02,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:39:02,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609485332] [2024-12-02 08:39:02,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:39:02,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:02,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:39:02,233 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:39:02,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-12-02 08:39:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:39:02,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 08:39:02,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:39:02,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 08:39:02,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-12-02 08:39:02,958 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:02,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 47 [2024-12-02 08:39:03,351 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:03,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 64 [2024-12-02 08:39:03,596 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:03,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 35 [2024-12-02 08:39:03,643 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 351 proven. 15 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-12-02 08:39:03,643 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:39:03,855 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:39:03,855 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:39:03,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609485332] [2024-12-02 08:39:03,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609485332] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:39:03,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:39:03,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20 [2024-12-02 08:39:03,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029397924] [2024-12-02 08:39:03,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:39:03,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:39:03,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:39:03,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:39:03,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:39:03,857 INFO L87 Difference]: Start difference. First operand 642 states and 918 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:39:04,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:39:04,159 INFO L93 Difference]: Finished difference Result 1368 states and 1945 transitions. [2024-12-02 08:39:04,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:39:04,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:39:04,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:39:04,161 INFO L225 Difference]: With dead ends: 1368 [2024-12-02 08:39:04,161 INFO L226 Difference]: Without dead ends: 729 [2024-12-02 08:39:04,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-12-02 08:39:04,162 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 202 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:39:04,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 599 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:39:04,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-12-02 08:39:04,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 642. [2024-12-02 08:39:04,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 555 states have (on average 1.3855855855855856) internal successors, (769), 558 states have internal predecessors, (769), 73 states have call successors, (73), 13 states have call predecessors, (73), 13 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-12-02 08:39:04,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 915 transitions. [2024-12-02 08:39:04,207 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 915 transitions. Word has length 151 [2024-12-02 08:39:04,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:39:04,208 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 915 transitions. [2024-12-02 08:39:04,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:39:04,208 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 915 transitions. [2024-12-02 08:39:04,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:39:04,209 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:39:04,210 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:39:04,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-12-02 08:39:04,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:04,410 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:39:04,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:39:04,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1311181635, now seen corresponding path program 1 times [2024-12-02 08:39:04,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:39:04,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1940737071] [2024-12-02 08:39:04,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:39:04,411 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:04,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:39:04,413 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:39:04,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-12-02 08:39:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:39:04,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:39:04,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:39:04,650 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:04,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-12-02 08:39:04,674 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:39:04,674 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:39:04,674 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:39:04,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1940737071] [2024-12-02 08:39:04,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1940737071] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:39:04,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:39:04,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:39:04,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803044546] [2024-12-02 08:39:04,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:39:04,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:39:04,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:39:04,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:39:04,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:39:04,675 INFO L87 Difference]: Start difference. First operand 642 states and 915 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:39:05,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:39:05,078 INFO L93 Difference]: Finished difference Result 1437 states and 2038 transitions. [2024-12-02 08:39:05,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:39:05,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:39:05,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:39:05,081 INFO L225 Difference]: With dead ends: 1437 [2024-12-02 08:39:05,081 INFO L226 Difference]: Without dead ends: 798 [2024-12-02 08:39:05,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:39:05,083 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 95 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:39:05,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 732 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:39:05,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-12-02 08:39:05,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 643. [2024-12-02 08:39:05,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 556 states have (on average 1.381294964028777) internal successors, (768), 559 states have internal predecessors, (768), 73 states have call successors, (73), 13 states have call predecessors, (73), 13 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-12-02 08:39:05,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 914 transitions. [2024-12-02 08:39:05,146 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 914 transitions. Word has length 151 [2024-12-02 08:39:05,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:39:05,146 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 914 transitions. [2024-12-02 08:39:05,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:39:05,147 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 914 transitions. [2024-12-02 08:39:05,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:39:05,148 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:39:05,148 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:39:05,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-12-02 08:39:05,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:05,349 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:39:05,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:39:05,349 INFO L85 PathProgramCache]: Analyzing trace with hash 724375621, now seen corresponding path program 1 times [2024-12-02 08:39:05,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:39:05,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984349723] [2024-12-02 08:39:05,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:39:05,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:05,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:39:05,351 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:39:05,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-12-02 08:39:05,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:39:05,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 08:39:05,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:39:05,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:39:05,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 08:39:06,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-12-02 08:39:06,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2024-12-02 08:39:07,880 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:07,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 72 [2024-12-02 08:39:08,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2024-12-02 08:39:08,825 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:08,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 79 treesize of output 37 [2024-12-02 08:39:09,083 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 474 proven. 48 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-12-02 08:39:09,083 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:39:10,075 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:39:10,075 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:39:10,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984349723] [2024-12-02 08:39:10,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1984349723] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:39:10,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:39:10,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [31] total 39 [2024-12-02 08:39:10,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811857732] [2024-12-02 08:39:10,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:39:10,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:39:10,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:39:10,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:39:10,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1280, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 08:39:10,077 INFO L87 Difference]: Start difference. First operand 643 states and 914 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:39:12,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:39:12,592 INFO L93 Difference]: Finished difference Result 1436 states and 2040 transitions. [2024-12-02 08:39:12,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:39:12,593 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:39:12,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:39:12,596 INFO L225 Difference]: With dead ends: 1436 [2024-12-02 08:39:12,596 INFO L226 Difference]: Without dead ends: 796 [2024-12-02 08:39:12,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=247, Invalid=1559, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 08:39:12,597 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 264 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:39:12,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1087 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 08:39:12,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2024-12-02 08:39:12,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 672. [2024-12-02 08:39:12,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 585 states have (on average 1.3897435897435897) internal successors, (813), 588 states have internal predecessors, (813), 73 states have call successors, (73), 13 states have call predecessors, (73), 13 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-12-02 08:39:12,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 959 transitions. [2024-12-02 08:39:12,643 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 959 transitions. Word has length 151 [2024-12-02 08:39:12,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:39:12,644 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 959 transitions. [2024-12-02 08:39:12,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:39:12,644 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 959 transitions. [2024-12-02 08:39:12,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:39:12,645 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:39:12,645 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:39:12,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-12-02 08:39:12,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:12,845 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:39:12,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:39:12,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1765153341, now seen corresponding path program 1 times [2024-12-02 08:39:12,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:39:12,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330639920] [2024-12-02 08:39:12,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:39:12,846 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:12,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:39:12,848 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:39:12,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-12-02 08:39:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:39:13,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-02 08:39:13,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:39:13,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-12-02 08:39:13,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 08:39:14,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 08:39:14,370 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:14,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 08:39:14,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2024-12-02 08:39:15,615 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:15,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 62 [2024-12-02 08:39:15,919 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:15,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 107 treesize of output 96 [2024-12-02 08:39:16,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 56 [2024-12-02 08:39:16,502 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:16,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 107 treesize of output 51 [2024-12-02 08:39:16,641 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 149 proven. 376 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-12-02 08:39:16,641 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:39:18,371 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:39:18,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1330639920] [2024-12-02 08:39:18,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1330639920] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:39:18,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1758742490] [2024-12-02 08:39:18,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:39:18,372 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:39:18,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:39:18,373 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:39:18,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-12-02 08:39:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:39:19,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-12-02 08:39:19,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:39:19,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2024-12-02 08:39:20,170 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:20,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 36 [2024-12-02 08:39:21,134 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:21,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 44 [2024-12-02 08:39:21,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 44 [2024-12-02 08:39:23,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:23,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 67 [2024-12-02 08:39:23,609 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:23,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 90 treesize of output 85 [2024-12-02 08:39:24,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 49 [2024-12-02 08:39:24,304 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:24,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 52 [2024-12-02 08:39:24,451 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 377 proven. 24 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2024-12-02 08:39:24,451 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:39:24,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 61 [2024-12-02 08:39:24,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1758742490] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:39:24,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:39:24,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 24] total 55 [2024-12-02 08:39:24,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736529162] [2024-12-02 08:39:24,874 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:39:24,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-12-02 08:39:24,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:39:24,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-12-02 08:39:24,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=4328, Unknown=0, NotChecked=0, Total=4830 [2024-12-02 08:39:24,876 INFO L87 Difference]: Start difference. First operand 672 states and 959 transitions. Second operand has 56 states, 48 states have (on average 3.1041666666666665) internal successors, (149), 51 states have internal predecessors, (149), 17 states have call successors, (38), 11 states have call predecessors, (38), 17 states have return successors, (38), 12 states have call predecessors, (38), 17 states have call successors, (38) [2024-12-02 08:39:37,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:39:37,359 INFO L93 Difference]: Finished difference Result 1484 states and 2104 transitions. [2024-12-02 08:39:37,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-12-02 08:39:37,360 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 48 states have (on average 3.1041666666666665) internal successors, (149), 51 states have internal predecessors, (149), 17 states have call successors, (38), 11 states have call predecessors, (38), 17 states have return successors, (38), 12 states have call predecessors, (38), 17 states have call successors, (38) Word has length 151 [2024-12-02 08:39:37,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:39:37,362 INFO L225 Difference]: With dead ends: 1484 [2024-12-02 08:39:37,363 INFO L226 Difference]: Without dead ends: 1059 [2024-12-02 08:39:37,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 303 SyntacticMatches, 3 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4414 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=2019, Invalid=12261, Unknown=0, NotChecked=0, Total=14280 [2024-12-02 08:39:37,365 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 2308 mSDsluCounter, 5159 mSDsCounter, 0 mSdLazyCounter, 4036 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 5406 SdHoareTripleChecker+Invalid, 4514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 4036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:39:37,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2308 Valid, 5406 Invalid, 4514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 4036 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2024-12-02 08:39:37,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2024-12-02 08:39:37,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 672. [2024-12-02 08:39:37,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 585 states have (on average 1.3897435897435897) internal successors, (813), 588 states have internal predecessors, (813), 73 states have call successors, (73), 13 states have call predecessors, (73), 13 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-12-02 08:39:37,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 959 transitions. [2024-12-02 08:39:37,446 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 959 transitions. Word has length 151 [2024-12-02 08:39:37,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:39:37,447 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 959 transitions. [2024-12-02 08:39:37,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 48 states have (on average 3.1041666666666665) internal successors, (149), 51 states have internal predecessors, (149), 17 states have call successors, (38), 11 states have call predecessors, (38), 17 states have return successors, (38), 12 states have call predecessors, (38), 17 states have call successors, (38) [2024-12-02 08:39:37,447 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 959 transitions. [2024-12-02 08:39:37,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:39:37,448 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:39:37,448 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:39:37,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2024-12-02 08:39:37,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-12-02 08:39:37,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:37,849 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:39:37,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:39:37,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1093137167, now seen corresponding path program 1 times [2024-12-02 08:39:37,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:39:37,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53869131] [2024-12-02 08:39:37,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:39:37,850 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:37,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:39:37,851 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:39:37,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-12-02 08:39:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:39:38,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 08:39:38,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:39:38,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:39:38,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 08:39:38,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-12-02 08:39:39,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:39,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 39 [2024-12-02 08:39:39,907 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:39,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 25 [2024-12-02 08:39:39,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 38 [2024-12-02 08:39:39,999 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 454 proven. 48 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-12-02 08:39:39,999 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:39:40,239 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:39:40,239 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:39:40,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53869131] [2024-12-02 08:39:40,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53869131] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:39:40,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:39:40,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [21] total 25 [2024-12-02 08:39:40,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15901307] [2024-12-02 08:39:40,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:39:40,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:39:40,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:39:40,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:39:40,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=500, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:39:40,240 INFO L87 Difference]: Start difference. First operand 672 states and 959 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:39:40,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:39:40,569 INFO L93 Difference]: Finished difference Result 1583 states and 2265 transitions. [2024-12-02 08:39:40,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:39:40,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:39:40,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:39:40,574 INFO L225 Difference]: With dead ends: 1583 [2024-12-02 08:39:40,574 INFO L226 Difference]: Without dead ends: 914 [2024-12-02 08:39:40,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 276 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:39:40,575 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 202 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:39:40,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 479 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:39:40,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2024-12-02 08:39:40,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 789. [2024-12-02 08:39:40,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 692 states have (on average 1.4017341040462428) internal successors, (970), 696 states have internal predecessors, (970), 82 states have call successors, (82), 14 states have call predecessors, (82), 14 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 08:39:40,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1134 transitions. [2024-12-02 08:39:40,650 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1134 transitions. Word has length 151 [2024-12-02 08:39:40,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:39:40,650 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1134 transitions. [2024-12-02 08:39:40,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:39:40,650 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1134 transitions. [2024-12-02 08:39:40,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:39:40,651 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:39:40,652 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:39:40,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-12-02 08:39:40,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:40,852 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:39:40,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:39:40,852 INFO L85 PathProgramCache]: Analyzing trace with hash -2104254417, now seen corresponding path program 1 times [2024-12-02 08:39:40,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:39:40,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007896942] [2024-12-02 08:39:40,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:39:40,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:40,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:39:40,854 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:39:40,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-12-02 08:39:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:39:41,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 08:39:41,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:39:41,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:39:41,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-12-02 08:39:41,820 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:41,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2024-12-02 08:39:42,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:42,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 49 [2024-12-02 08:39:42,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:42,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 83 [2024-12-02 08:39:44,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2024-12-02 08:39:44,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:44,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 102 treesize of output 48 [2024-12-02 08:39:44,537 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 458 proven. 63 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-12-02 08:39:44,538 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:39:45,533 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:39:45,533 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:39:45,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007896942] [2024-12-02 08:39:45,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007896942] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:39:45,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:39:45,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [32] total 42 [2024-12-02 08:39:45,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010437276] [2024-12-02 08:39:45,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:39:45,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:39:45,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:39:45,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:39:45,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1507, Unknown=0, NotChecked=0, Total=1722 [2024-12-02 08:39:45,534 INFO L87 Difference]: Start difference. First operand 789 states and 1134 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:39:47,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:39:47,807 INFO L93 Difference]: Finished difference Result 1992 states and 2860 transitions. [2024-12-02 08:39:47,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:39:47,807 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:39:47,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:39:47,812 INFO L225 Difference]: With dead ends: 1992 [2024-12-02 08:39:47,812 INFO L226 Difference]: Without dead ends: 1206 [2024-12-02 08:39:47,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=288, Invalid=2262, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 08:39:47,814 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 503 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:39:47,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1737 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 08:39:47,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2024-12-02 08:39:47,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 831. [2024-12-02 08:39:47,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 734 states have (on average 1.4073569482288828) internal successors, (1033), 738 states have internal predecessors, (1033), 82 states have call successors, (82), 14 states have call predecessors, (82), 14 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 08:39:47,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1197 transitions. [2024-12-02 08:39:47,882 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1197 transitions. Word has length 151 [2024-12-02 08:39:47,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:39:47,882 INFO L471 AbstractCegarLoop]: Abstraction has 831 states and 1197 transitions. [2024-12-02 08:39:47,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:39:47,882 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1197 transitions. [2024-12-02 08:39:47,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:39:47,883 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:39:47,883 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:39:47,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-12-02 08:39:48,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:48,084 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:39:48,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:39:48,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1846088979, now seen corresponding path program 1 times [2024-12-02 08:39:48,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:39:48,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342381929] [2024-12-02 08:39:48,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:39:48,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:48,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:39:48,086 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:39:48,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-12-02 08:39:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:39:48,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 08:39:48,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:39:48,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-12-02 08:39:48,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 08:39:49,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-12-02 08:39:49,728 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:49,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 31 [2024-12-02 08:39:49,978 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:49,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 31 [2024-12-02 08:39:50,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2024-12-02 08:39:50,771 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:50,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 58 [2024-12-02 08:39:51,443 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:51,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 90 treesize of output 42 [2024-12-02 08:39:51,634 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 126 proven. 379 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-12-02 08:39:51,634 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:39:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:39:52,224 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:39:52,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342381929] [2024-12-02 08:39:52,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342381929] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:39:52,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:39:52,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [30] total 37 [2024-12-02 08:39:52,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393483432] [2024-12-02 08:39:52,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:39:52,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:39:52,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:39:52,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:39:52,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1182, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 08:39:52,225 INFO L87 Difference]: Start difference. First operand 831 states and 1197 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:39:53,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:39:53,391 INFO L93 Difference]: Finished difference Result 2388 states and 3429 transitions. [2024-12-02 08:39:53,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:39:53,392 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:39:53,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:39:53,396 INFO L225 Difference]: With dead ends: 2388 [2024-12-02 08:39:53,396 INFO L226 Difference]: Without dead ends: 1560 [2024-12-02 08:39:53,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 265 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=190, Invalid=1450, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 08:39:53,397 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 486 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:39:53,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 1018 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 08:39:53,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2024-12-02 08:39:53,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1183. [2024-12-02 08:39:53,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1042 states have (on average 1.40978886756238) internal successors, (1469), 1050 states have internal predecessors, (1469), 122 states have call successors, (122), 18 states have call predecessors, (122), 18 states have return successors, (122), 114 states have call predecessors, (122), 122 states have call successors, (122) [2024-12-02 08:39:53,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1713 transitions. [2024-12-02 08:39:53,471 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1713 transitions. Word has length 151 [2024-12-02 08:39:53,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:39:53,471 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1713 transitions. [2024-12-02 08:39:53,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:39:53,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1713 transitions. [2024-12-02 08:39:53,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:39:53,472 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:39:53,473 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:39:53,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-12-02 08:39:53,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:53,673 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:39:53,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:39:53,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1971858161, now seen corresponding path program 1 times [2024-12-02 08:39:53,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:39:53,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092022598] [2024-12-02 08:39:53,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:39:53,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:53,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:39:53,675 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:39:53,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-12-02 08:39:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:39:53,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-12-02 08:39:53,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:39:54,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:39:54,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-12-02 08:39:54,692 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:54,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2024-12-02 08:39:55,021 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:55,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 54 [2024-12-02 08:39:55,909 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:55,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 100 treesize of output 88 [2024-12-02 08:39:56,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:56,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 101 treesize of output 98 [2024-12-02 08:39:56,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2024-12-02 08:39:57,042 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:39:57,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 109 treesize of output 57 [2024-12-02 08:39:57,285 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 458 proven. 63 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-12-02 08:39:57,286 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:39:57,987 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:39:57,987 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:39:57,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092022598] [2024-12-02 08:39:57,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2092022598] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:39:57,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:39:57,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [31] total 39 [2024-12-02 08:39:57,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975308885] [2024-12-02 08:39:57,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:39:57,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:39:57,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:39:57,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:39:57,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1292, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 08:39:57,989 INFO L87 Difference]: Start difference. First operand 1183 states and 1713 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:39:59,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:39:59,426 INFO L93 Difference]: Finished difference Result 2112 states and 3056 transitions. [2024-12-02 08:39:59,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:39:59,427 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:39:59,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:39:59,430 INFO L225 Difference]: With dead ends: 2112 [2024-12-02 08:39:59,430 INFO L226 Difference]: Without dead ends: 1273 [2024-12-02 08:39:59,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=231, Invalid=1839, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 08:39:59,432 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 140 mSDsluCounter, 1455 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:39:59,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1677 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 08:39:59,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2024-12-02 08:39:59,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 1183. [2024-12-02 08:39:59,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1042 states have (on average 1.40978886756238) internal successors, (1469), 1050 states have internal predecessors, (1469), 122 states have call successors, (122), 18 states have call predecessors, (122), 18 states have return successors, (122), 114 states have call predecessors, (122), 122 states have call successors, (122) [2024-12-02 08:39:59,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1713 transitions. [2024-12-02 08:39:59,509 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1713 transitions. Word has length 151 [2024-12-02 08:39:59,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:39:59,509 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1713 transitions. [2024-12-02 08:39:59,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:39:59,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1713 transitions. [2024-12-02 08:39:59,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:39:59,510 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:39:59,510 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:39:59,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-12-02 08:39:59,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:59,710 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:39:59,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:39:59,711 INFO L85 PathProgramCache]: Analyzing trace with hash -2064943697, now seen corresponding path program 1 times [2024-12-02 08:39:59,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:39:59,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494470566] [2024-12-02 08:39:59,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:39:59,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:39:59,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:39:59,713 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:39:59,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-12-02 08:40:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:40:00,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 08:40:00,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:40:00,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:40:00,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-12-02 08:40:00,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:00,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2024-12-02 08:40:00,420 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:00,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 39 [2024-12-02 08:40:00,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:00,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 48 [2024-12-02 08:40:00,863 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:00,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 59 [2024-12-02 08:40:01,140 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:01,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 36 [2024-12-02 08:40:01,190 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 356 proven. 27 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-12-02 08:40:01,191 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:40:01,391 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:40:01,391 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:40:01,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494470566] [2024-12-02 08:40:01,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494470566] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:40:01,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:40:01,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 19 [2024-12-02 08:40:01,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447652931] [2024-12-02 08:40:01,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:40:01,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:40:01,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:40:01,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:40:01,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:40:01,392 INFO L87 Difference]: Start difference. First operand 1183 states and 1713 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:40:01,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:40:01,745 INFO L93 Difference]: Finished difference Result 2098 states and 3030 transitions. [2024-12-02 08:40:01,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:40:01,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:40:01,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:40:01,749 INFO L225 Difference]: With dead ends: 2098 [2024-12-02 08:40:01,749 INFO L226 Difference]: Without dead ends: 1259 [2024-12-02 08:40:01,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 282 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:40:01,751 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 202 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:40:01,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 632 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:40:01,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2024-12-02 08:40:01,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1150. [2024-12-02 08:40:01,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1009 states have (on average 1.402378592666006) internal successors, (1415), 1017 states have internal predecessors, (1415), 122 states have call successors, (122), 18 states have call predecessors, (122), 18 states have return successors, (122), 114 states have call predecessors, (122), 122 states have call successors, (122) [2024-12-02 08:40:01,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1659 transitions. [2024-12-02 08:40:01,825 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1659 transitions. Word has length 151 [2024-12-02 08:40:01,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:40:01,826 INFO L471 AbstractCegarLoop]: Abstraction has 1150 states and 1659 transitions. [2024-12-02 08:40:01,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:40:01,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1659 transitions. [2024-12-02 08:40:01,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:40:01,827 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:40:01,827 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:40:01,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-12-02 08:40:02,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:02,028 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:40:02,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:40:02,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1963705807, now seen corresponding path program 1 times [2024-12-02 08:40:02,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:40:02,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066729210] [2024-12-02 08:40:02,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:40:02,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:02,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:40:02,030 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:40:02,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-12-02 08:40:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:40:02,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-12-02 08:40:02,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:40:02,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:40:02,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 08:40:02,883 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:02,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-12-02 08:40:03,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:03,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-12-02 08:40:03,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2024-12-02 08:40:03,827 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:03,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 75 [2024-12-02 08:40:04,116 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 458 proven. 63 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-12-02 08:40:04,116 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:40:04,623 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:40:04,623 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:40:04,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066729210] [2024-12-02 08:40:04,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066729210] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:40:04,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:40:04,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [25] total 31 [2024-12-02 08:40:04,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875257122] [2024-12-02 08:40:04,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:40:04,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:40:04,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:40:04,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:40:04,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=802, Unknown=0, NotChecked=0, Total=930 [2024-12-02 08:40:04,624 INFO L87 Difference]: Start difference. First operand 1150 states and 1659 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:40:05,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:40:05,612 INFO L93 Difference]: Finished difference Result 2793 states and 4012 transitions. [2024-12-02 08:40:05,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:40:05,613 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:40:05,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:40:05,617 INFO L225 Difference]: With dead ends: 2793 [2024-12-02 08:40:05,617 INFO L226 Difference]: Without dead ends: 1646 [2024-12-02 08:40:05,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=154, Invalid=968, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 08:40:05,619 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 325 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:40:05,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 995 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:40:05,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2024-12-02 08:40:05,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1056. [2024-12-02 08:40:05,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 936 states have (on average 1.4113247863247864) internal successors, (1321), 942 states have internal predecessors, (1321), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-12-02 08:40:05,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1525 transitions. [2024-12-02 08:40:05,697 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1525 transitions. Word has length 151 [2024-12-02 08:40:05,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:40:05,697 INFO L471 AbstractCegarLoop]: Abstraction has 1056 states and 1525 transitions. [2024-12-02 08:40:05,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:40:05,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1525 transitions. [2024-12-02 08:40:05,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:40:05,698 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:40:05,698 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:40:05,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-12-02 08:40:05,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:05,898 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:40:05,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:40:05,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1705540369, now seen corresponding path program 1 times [2024-12-02 08:40:05,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:40:05,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42636775] [2024-12-02 08:40:05,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:40:05,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:05,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:40:05,900 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:40:05,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-12-02 08:40:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:40:06,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-12-02 08:40:06,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:40:06,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-12-02 08:40:06,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 08:40:07,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-12-02 08:40:07,550 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:07,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2024-12-02 08:40:07,925 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:07,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 39 [2024-12-02 08:40:08,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:08,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 60 [2024-12-02 08:40:09,037 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 126 proven. 379 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-12-02 08:40:09,038 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:40:10,149 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:40:10,149 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:40:10,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42636775] [2024-12-02 08:40:10,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42636775] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:40:10,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:40:10,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [28] total 40 [2024-12-02 08:40:10,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502224983] [2024-12-02 08:40:10,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:40:10,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:40:10,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:40:10,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:40:10,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1413, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 08:40:10,150 INFO L87 Difference]: Start difference. First operand 1056 states and 1525 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:40:12,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:40:12,550 INFO L93 Difference]: Finished difference Result 2354 states and 3387 transitions. [2024-12-02 08:40:12,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:40:12,551 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:40:12,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:40:12,554 INFO L225 Difference]: With dead ends: 2354 [2024-12-02 08:40:12,554 INFO L226 Difference]: Without dead ends: 1301 [2024-12-02 08:40:12,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=219, Invalid=2133, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 08:40:12,556 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 299 mSDsluCounter, 1892 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:40:12,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 2129 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 08:40:12,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2024-12-02 08:40:12,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1058. [2024-12-02 08:40:12,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 938 states have (on average 1.4104477611940298) internal successors, (1323), 944 states have internal predecessors, (1323), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-12-02 08:40:12,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1527 transitions. [2024-12-02 08:40:12,623 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1527 transitions. Word has length 151 [2024-12-02 08:40:12,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:40:12,623 INFO L471 AbstractCegarLoop]: Abstraction has 1058 states and 1527 transitions. [2024-12-02 08:40:12,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:40:12,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1527 transitions. [2024-12-02 08:40:12,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:40:12,624 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:40:12,624 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:40:12,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-12-02 08:40:12,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:12,824 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:40:12,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:40:12,825 INFO L85 PathProgramCache]: Analyzing trace with hash 2112406771, now seen corresponding path program 1 times [2024-12-02 08:40:12,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:40:12,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878713280] [2024-12-02 08:40:12,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:40:12,825 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:12,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:40:12,827 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:40:12,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-12-02 08:40:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:40:13,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 08:40:13,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:40:13,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:40:13,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 08:40:13,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:13,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 08:40:13,341 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:13,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 08:40:13,466 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:13,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 32 [2024-12-02 08:40:13,479 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:13,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 52 [2024-12-02 08:40:13,613 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:13,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 29 [2024-12-02 08:40:13,679 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 356 proven. 27 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-12-02 08:40:13,679 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:40:13,872 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:40:13,872 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:40:13,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878713280] [2024-12-02 08:40:13,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878713280] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:40:13,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:40:13,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2024-12-02 08:40:13,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912991372] [2024-12-02 08:40:13,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:40:13,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:40:13,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:40:13,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:40:13,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:40:13,873 INFO L87 Difference]: Start difference. First operand 1058 states and 1527 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:40:14,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:40:14,245 INFO L93 Difference]: Finished difference Result 2106 states and 3025 transitions. [2024-12-02 08:40:14,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:40:14,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:40:14,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:40:14,250 INFO L225 Difference]: With dead ends: 2106 [2024-12-02 08:40:14,250 INFO L226 Difference]: Without dead ends: 1394 [2024-12-02 08:40:14,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:40:14,251 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 114 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:40:14,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 628 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:40:14,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2024-12-02 08:40:14,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1042. [2024-12-02 08:40:14,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 922 states have (on average 1.4045553145336225) internal successors, (1295), 928 states have internal predecessors, (1295), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-12-02 08:40:14,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1499 transitions. [2024-12-02 08:40:14,321 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1499 transitions. Word has length 151 [2024-12-02 08:40:14,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:40:14,321 INFO L471 AbstractCegarLoop]: Abstraction has 1042 states and 1499 transitions. [2024-12-02 08:40:14,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:40:14,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1499 transitions. [2024-12-02 08:40:14,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:40:14,322 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:40:14,322 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:40:14,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-12-02 08:40:14,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:14,523 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:40:14,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:40:14,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1924395087, now seen corresponding path program 1 times [2024-12-02 08:40:14,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:40:14,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481061674] [2024-12-02 08:40:14,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:40:14,523 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:14,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:40:14,525 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:40:14,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-12-02 08:40:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:40:14,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 08:40:14,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:40:14,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 08:40:15,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-12-02 08:40:15,509 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:15,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 42 [2024-12-02 08:40:16,122 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:16,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 61 [2024-12-02 08:40:16,293 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:16,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 76 [2024-12-02 08:40:16,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2024-12-02 08:40:16,999 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:16,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 87 treesize of output 39 [2024-12-02 08:40:17,208 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 464 proven. 54 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-12-02 08:40:17,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:40:17,768 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:40:17,768 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:40:17,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481061674] [2024-12-02 08:40:17,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481061674] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:40:17,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:40:17,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [26] total 33 [2024-12-02 08:40:17,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107626668] [2024-12-02 08:40:17,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:40:17,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:40:17,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:40:17,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:40:17,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=916, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 08:40:17,770 INFO L87 Difference]: Start difference. First operand 1042 states and 1499 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:40:18,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:40:18,984 INFO L93 Difference]: Finished difference Result 1929 states and 2768 transitions. [2024-12-02 08:40:18,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:40:18,985 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:40:18,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:40:18,988 INFO L225 Difference]: With dead ends: 1929 [2024-12-02 08:40:18,988 INFO L226 Difference]: Without dead ends: 1233 [2024-12-02 08:40:18,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=172, Invalid=1310, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 08:40:18,989 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 115 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:40:18,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1823 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:40:18,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2024-12-02 08:40:19,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1025. [2024-12-02 08:40:19,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 905 states have (on average 1.4022099447513812) internal successors, (1269), 911 states have internal predecessors, (1269), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-12-02 08:40:19,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1473 transitions. [2024-12-02 08:40:19,052 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1473 transitions. Word has length 151 [2024-12-02 08:40:19,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:40:19,052 INFO L471 AbstractCegarLoop]: Abstraction has 1025 states and 1473 transitions. [2024-12-02 08:40:19,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:40:19,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1473 transitions. [2024-12-02 08:40:19,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:40:19,053 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:40:19,053 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:40:19,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-12-02 08:40:19,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:19,254 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:40:19,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:40:19,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1278602095, now seen corresponding path program 1 times [2024-12-02 08:40:19,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:40:19,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897915609] [2024-12-02 08:40:19,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:40:19,255 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:19,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:40:19,256 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:40:19,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-12-02 08:40:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:40:19,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-12-02 08:40:19,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:40:19,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:40:19,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 08:40:20,089 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:20,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-12-02 08:40:20,728 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:20,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 55 [2024-12-02 08:40:21,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-12-02 08:40:21,792 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:21,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 105 treesize of output 87 [2024-12-02 08:40:23,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:23,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 115 treesize of output 55 [2024-12-02 08:40:23,430 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 467 proven. 57 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-12-02 08:40:23,430 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:40:24,671 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:40:24,672 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:40:24,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897915609] [2024-12-02 08:40:24,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1897915609] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:40:24,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:40:24,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [36] total 46 [2024-12-02 08:40:24,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238291804] [2024-12-02 08:40:24,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:40:24,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:40:24,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:40:24,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:40:24,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1869, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 08:40:24,673 INFO L87 Difference]: Start difference. First operand 1025 states and 1473 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:40:27,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:40:27,019 INFO L93 Difference]: Finished difference Result 2457 states and 3510 transitions. [2024-12-02 08:40:27,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:40:27,020 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:40:27,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:40:27,023 INFO L225 Difference]: With dead ends: 2457 [2024-12-02 08:40:27,023 INFO L226 Difference]: Without dead ends: 1435 [2024-12-02 08:40:27,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 845 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=277, Invalid=2693, Unknown=0, NotChecked=0, Total=2970 [2024-12-02 08:40:27,025 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 347 mSDsluCounter, 1732 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:40:27,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1960 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 08:40:27,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2024-12-02 08:40:27,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1044. [2024-12-02 08:40:27,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 924 states have (on average 1.4047619047619047) internal successors, (1298), 930 states have internal predecessors, (1298), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-12-02 08:40:27,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1502 transitions. [2024-12-02 08:40:27,098 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1502 transitions. Word has length 151 [2024-12-02 08:40:27,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:40:27,098 INFO L471 AbstractCegarLoop]: Abstraction has 1044 states and 1502 transitions. [2024-12-02 08:40:27,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:40:27,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1502 transitions. [2024-12-02 08:40:27,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:40:27,099 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:40:27,099 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:40:27,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2024-12-02 08:40:27,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:27,299 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:40:27,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:40:27,300 INFO L85 PathProgramCache]: Analyzing trace with hash 267484845, now seen corresponding path program 1 times [2024-12-02 08:40:27,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:40:27,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317244744] [2024-12-02 08:40:27,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:40:27,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:27,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:40:27,302 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:40:27,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-12-02 08:40:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:40:27,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 08:40:27,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:40:27,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:40:27,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 08:40:28,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-12-02 08:40:28,980 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:28,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 38 [2024-12-02 08:40:29,094 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:29,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 24 [2024-12-02 08:40:29,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2024-12-02 08:40:29,167 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 454 proven. 48 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-12-02 08:40:29,167 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:40:29,413 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:40:29,413 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:40:29,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317244744] [2024-12-02 08:40:29,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1317244744] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:40:29,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:40:29,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [21] total 25 [2024-12-02 08:40:29,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690278538] [2024-12-02 08:40:29,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:40:29,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:40:29,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:40:29,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:40:29,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=500, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:40:29,414 INFO L87 Difference]: Start difference. First operand 1044 states and 1502 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:40:29,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:40:29,778 INFO L93 Difference]: Finished difference Result 2158 states and 3095 transitions. [2024-12-02 08:40:29,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:40:29,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:40:29,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:40:29,782 INFO L225 Difference]: With dead ends: 2158 [2024-12-02 08:40:29,782 INFO L226 Difference]: Without dead ends: 1117 [2024-12-02 08:40:29,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:40:29,783 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 198 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:40:29,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 578 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:40:29,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2024-12-02 08:40:29,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 922. [2024-12-02 08:40:29,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 820 states have (on average 1.4060975609756097) internal successors, (1153), 824 states have internal predecessors, (1153), 84 states have call successors, (84), 17 states have call predecessors, (84), 17 states have return successors, (84), 80 states have call predecessors, (84), 84 states have call successors, (84) [2024-12-02 08:40:29,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1321 transitions. [2024-12-02 08:40:29,846 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1321 transitions. Word has length 151 [2024-12-02 08:40:29,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:40:29,847 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1321 transitions. [2024-12-02 08:40:29,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:40:29,847 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1321 transitions. [2024-12-02 08:40:29,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:40:29,847 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:40:29,848 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:40:29,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-12-02 08:40:30,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:30,048 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:40:30,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:40:30,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1059747377, now seen corresponding path program 1 times [2024-12-02 08:40:30,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:40:30,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2076511785] [2024-12-02 08:40:30,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:40:30,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:30,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:40:30,050 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:40:30,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-12-02 08:40:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:40:30,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 08:40:30,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:40:30,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:40:30,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 08:40:30,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 08:40:30,551 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:30,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-12-02 08:40:30,819 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:30,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 65 [2024-12-02 08:40:30,888 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:30,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 75 treesize of output 80 [2024-12-02 08:40:31,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:31,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 103 treesize of output 47 [2024-12-02 08:40:31,377 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-12-02 08:40:31,377 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:40:31,377 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:40:31,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2076511785] [2024-12-02 08:40:31,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2076511785] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:40:31,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:40:31,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:40:31,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651197692] [2024-12-02 08:40:31,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:40:31,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:40:31,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:40:31,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:40:31,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:40:31,379 INFO L87 Difference]: Start difference. First operand 922 states and 1321 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:40:33,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:40:33,726 INFO L93 Difference]: Finished difference Result 1867 states and 2647 transitions. [2024-12-02 08:40:33,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:40:33,727 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 151 [2024-12-02 08:40:33,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:40:33,733 INFO L225 Difference]: With dead ends: 1867 [2024-12-02 08:40:33,733 INFO L226 Difference]: Without dead ends: 1289 [2024-12-02 08:40:33,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:40:33,734 INFO L435 NwaCegarLoop]: 318 mSDtfsCounter, 493 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:40:33,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 1839 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 08:40:33,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2024-12-02 08:40:33,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 906. [2024-12-02 08:40:33,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 804 states have (on average 1.4029850746268657) internal successors, (1128), 808 states have internal predecessors, (1128), 84 states have call successors, (84), 17 states have call predecessors, (84), 17 states have return successors, (84), 80 states have call predecessors, (84), 84 states have call successors, (84) [2024-12-02 08:40:33,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1296 transitions. [2024-12-02 08:40:33,824 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1296 transitions. Word has length 151 [2024-12-02 08:40:33,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:40:33,824 INFO L471 AbstractCegarLoop]: Abstraction has 906 states and 1296 transitions. [2024-12-02 08:40:33,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:40:33,824 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1296 transitions. [2024-12-02 08:40:33,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:40:33,825 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:40:33,825 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:40:33,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-12-02 08:40:34,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:34,026 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:40:34,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:40:34,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1677316143, now seen corresponding path program 1 times [2024-12-02 08:40:34,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:40:34,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871696984] [2024-12-02 08:40:34,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:40:34,027 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:34,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:40:34,028 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:40:34,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-12-02 08:40:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:40:34,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 08:40:34,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:40:34,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:40:34,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 08:40:34,919 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:34,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 08:40:35,297 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:35,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 41 [2024-12-02 08:40:35,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-12-02 08:40:35,822 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:35,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 60 [2024-12-02 08:40:36,082 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 467 proven. 57 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-12-02 08:40:36,082 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:40:37,660 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:40:37,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871696984] [2024-12-02 08:40:37,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871696984] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:40:37,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [801706727] [2024-12-02 08:40:37,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:40:37,660 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:40:37,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:40:37,662 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:40:37,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2024-12-02 08:40:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:40:38,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-12-02 08:40:38,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:40:38,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 08:40:39,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2024-12-02 08:40:39,938 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:39,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 29 [2024-12-02 08:40:40,253 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:40,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 29 [2024-12-02 08:40:40,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-12-02 08:40:41,228 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:41,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 63 [2024-12-02 08:40:41,673 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 423 proven. 45 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-12-02 08:40:41,673 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:40:42,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [801706727] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:40:42,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:40:42,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 21] total 47 [2024-12-02 08:40:42,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033611627] [2024-12-02 08:40:42,259 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:40:42,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-12-02 08:40:42,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:40:42,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-12-02 08:40:42,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=3197, Unknown=0, NotChecked=0, Total=3660 [2024-12-02 08:40:42,260 INFO L87 Difference]: Start difference. First operand 906 states and 1296 transitions. Second operand has 47 states, 39 states have (on average 3.641025641025641) internal successors, (142), 45 states have internal predecessors, (142), 17 states have call successors, (38), 10 states have call predecessors, (38), 17 states have return successors, (38), 11 states have call predecessors, (38), 17 states have call successors, (38) [2024-12-02 08:40:50,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:40:50,270 INFO L93 Difference]: Finished difference Result 2015 states and 2828 transitions. [2024-12-02 08:40:50,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-12-02 08:40:50,271 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 39 states have (on average 3.641025641025641) internal successors, (142), 45 states have internal predecessors, (142), 17 states have call successors, (38), 10 states have call predecessors, (38), 17 states have return successors, (38), 11 states have call predecessors, (38), 17 states have call successors, (38) Word has length 151 [2024-12-02 08:40:50,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:40:50,274 INFO L225 Difference]: With dead ends: 2015 [2024-12-02 08:40:50,274 INFO L226 Difference]: Without dead ends: 1112 [2024-12-02 08:40:50,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 354 SyntacticMatches, 2 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3413 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=1591, Invalid=9965, Unknown=0, NotChecked=0, Total=11556 [2024-12-02 08:40:50,277 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 883 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 2831 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 3017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 2831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:40:50,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 2454 Invalid, 3017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 2831 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-12-02 08:40:50,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2024-12-02 08:40:50,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 630. [2024-12-02 08:40:50,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 576 states have (on average 1.4288194444444444) internal successors, (823), 576 states have internal predecessors, (823), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 08:40:50,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 899 transitions. [2024-12-02 08:40:50,352 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 899 transitions. Word has length 151 [2024-12-02 08:40:50,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:40:50,352 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 899 transitions. [2024-12-02 08:40:50,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 39 states have (on average 3.641025641025641) internal successors, (142), 45 states have internal predecessors, (142), 17 states have call successors, (38), 10 states have call predecessors, (38), 17 states have return successors, (38), 11 states have call predecessors, (38), 17 states have call successors, (38) [2024-12-02 08:40:50,352 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 899 transitions. [2024-12-02 08:40:50,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:40:50,353 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:40:50,353 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:40:50,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2024-12-02 08:40:50,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2024-12-02 08:40:50,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:50,753 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:40:50,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:40:50,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1458461425, now seen corresponding path program 1 times [2024-12-02 08:40:50,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:40:50,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395138323] [2024-12-02 08:40:50,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:40:50,754 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:50,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:40:50,755 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:40:50,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-12-02 08:40:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:40:51,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 08:40:51,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:40:51,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 08:40:51,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-02 08:40:51,221 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:51,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 08:40:51,368 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:51,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 44 [2024-12-02 08:40:51,427 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:51,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 59 [2024-12-02 08:40:51,745 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:51,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 94 treesize of output 40 [2024-12-02 08:40:51,829 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-12-02 08:40:51,829 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:40:51,829 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:40:51,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395138323] [2024-12-02 08:40:51,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395138323] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:40:51,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:40:51,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:40:51,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156370804] [2024-12-02 08:40:51,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:40:51,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:40:51,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:40:51,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:40:51,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:40:51,831 INFO L87 Difference]: Start difference. First operand 630 states and 899 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:40:54,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:40:54,035 INFO L93 Difference]: Finished difference Result 1022 states and 1450 transitions. [2024-12-02 08:40:54,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:40:54,035 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 151 [2024-12-02 08:40:54,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:40:54,038 INFO L225 Difference]: With dead ends: 1022 [2024-12-02 08:40:54,038 INFO L226 Difference]: Without dead ends: 719 [2024-12-02 08:40:54,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:40:54,038 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 349 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:40:54,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1473 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 08:40:54,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-12-02 08:40:54,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 627. [2024-12-02 08:40:54,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 573 states have (on average 1.431064572425829) internal successors, (820), 573 states have internal predecessors, (820), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 08:40:54,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 896 transitions. [2024-12-02 08:40:54,111 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 896 transitions. Word has length 151 [2024-12-02 08:40:54,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:40:54,111 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 896 transitions. [2024-12-02 08:40:54,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:40:54,111 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 896 transitions. [2024-12-02 08:40:54,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:40:54,112 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:40:54,112 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:40:54,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2024-12-02 08:40:54,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:54,313 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:40:54,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:40:54,313 INFO L85 PathProgramCache]: Analyzing trace with hash 123831353, now seen corresponding path program 1 times [2024-12-02 08:40:54,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:40:54,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032672512] [2024-12-02 08:40:54,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:40:54,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:40:54,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:40:54,315 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:40:54,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2024-12-02 08:40:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:40:54,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-12-02 08:40:54,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:40:55,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-12-02 08:40:55,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 08:40:55,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-12-02 08:40:55,946 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:55,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2024-12-02 08:40:56,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 59 [2024-12-02 08:40:59,365 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:40:59,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 137 treesize of output 103 [2024-12-02 08:41:00,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 43 [2024-12-02 08:41:01,874 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:01,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 177 treesize of output 79 [2024-12-02 08:41:03,153 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 155 proven. 373 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-12-02 08:41:03,153 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:41:05,726 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:41:05,726 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:05,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032672512] [2024-12-02 08:41:05,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032672512] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:41:05,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:41:05,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [47] total 60 [2024-12-02 08:41:05,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921829564] [2024-12-02 08:41:05,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:41:05,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:41:05,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:05,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:41:05,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=3265, Unknown=0, NotChecked=0, Total=3540 [2024-12-02 08:41:05,728 INFO L87 Difference]: Start difference. First operand 627 states and 896 transitions. Second operand has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:09,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:09,377 INFO L93 Difference]: Finished difference Result 1474 states and 2099 transitions. [2024-12-02 08:41:09,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 08:41:09,378 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-12-02 08:41:09,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:09,380 INFO L225 Difference]: With dead ends: 1474 [2024-12-02 08:41:09,380 INFO L226 Difference]: Without dead ends: 850 [2024-12-02 08:41:09,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1598 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=373, Invalid=4457, Unknown=0, NotChecked=0, Total=4830 [2024-12-02 08:41:09,381 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 384 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:09,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 2073 Invalid, 1034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 08:41:09,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-12-02 08:41:09,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 630. [2024-12-02 08:41:09,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 576 states have (on average 1.4305555555555556) internal successors, (824), 576 states have internal predecessors, (824), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 08:41:09,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 900 transitions. [2024-12-02 08:41:09,456 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 900 transitions. Word has length 153 [2024-12-02 08:41:09,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:09,457 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 900 transitions. [2024-12-02 08:41:09,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:09,457 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 900 transitions. [2024-12-02 08:41:09,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:41:09,457 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:09,457 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:41:09,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2024-12-02 08:41:09,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:09,658 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:09,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:09,658 INFO L85 PathProgramCache]: Analyzing trace with hash -462974661, now seen corresponding path program 1 times [2024-12-02 08:41:09,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:41:09,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866338050] [2024-12-02 08:41:09,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:09,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:09,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:41:09,660 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:41:09,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2024-12-02 08:41:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:09,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:41:09,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:09,917 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:09,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 16 [2024-12-02 08:41:09,938 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:41:09,939 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:41:09,939 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:09,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866338050] [2024-12-02 08:41:09,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866338050] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:41:09,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:41:09,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:41:09,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646789061] [2024-12-02 08:41:09,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:41:09,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:41:09,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:09,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:41:09,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:41:09,939 INFO L87 Difference]: Start difference. First operand 630 states and 900 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:10,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:10,376 INFO L93 Difference]: Finished difference Result 1423 states and 2011 transitions. [2024-12-02 08:41:10,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:41:10,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-12-02 08:41:10,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:10,379 INFO L225 Difference]: With dead ends: 1423 [2024-12-02 08:41:10,379 INFO L226 Difference]: Without dead ends: 796 [2024-12-02 08:41:10,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:41:10,380 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 97 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:10,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 521 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:41:10,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2024-12-02 08:41:10,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 630. [2024-12-02 08:41:10,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 576 states have (on average 1.4253472222222223) internal successors, (821), 576 states have internal predecessors, (821), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 08:41:10,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 897 transitions. [2024-12-02 08:41:10,463 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 897 transitions. Word has length 153 [2024-12-02 08:41:10,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:10,464 INFO L471 AbstractCegarLoop]: Abstraction has 630 states and 897 transitions. [2024-12-02 08:41:10,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:10,464 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 897 transitions. [2024-12-02 08:41:10,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:41:10,465 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:10,465 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:41:10,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2024-12-02 08:41:10,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:10,665 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:10,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:10,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1929269687, now seen corresponding path program 1 times [2024-12-02 08:41:10,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:41:10,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [497850174] [2024-12-02 08:41:10,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:10,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:10,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:41:10,668 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:41:10,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-12-02 08:41:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:11,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-12-02 08:41:11,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:11,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:41:11,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 08:41:11,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-12-02 08:41:12,984 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:12,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 57 [2024-12-02 08:41:13,154 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:13,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 96 treesize of output 71 [2024-12-02 08:41:13,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-12-02 08:41:14,223 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:14,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 160 treesize of output 70 [2024-12-02 08:41:15,069 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 444 proven. 42 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-12-02 08:41:15,069 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:41:16,665 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:41:16,665 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:16,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [497850174] [2024-12-02 08:41:16,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [497850174] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:41:16,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:41:16,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [35] total 46 [2024-12-02 08:41:16,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444288011] [2024-12-02 08:41:16,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:41:16,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:41:16,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:16,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:41:16,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1889, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 08:41:16,667 INFO L87 Difference]: Start difference. First operand 630 states and 897 transitions. Second operand has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:19,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:19,994 INFO L93 Difference]: Finished difference Result 1089 states and 1545 transitions. [2024-12-02 08:41:19,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:41:19,994 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-12-02 08:41:19,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:19,996 INFO L225 Difference]: With dead ends: 1089 [2024-12-02 08:41:19,996 INFO L226 Difference]: Without dead ends: 787 [2024-12-02 08:41:19,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=244, Invalid=2726, Unknown=0, NotChecked=0, Total=2970 [2024-12-02 08:41:19,997 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 196 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2027 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:19,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 2027 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 08:41:19,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2024-12-02 08:41:20,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 631. [2024-12-02 08:41:20,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 577 states have (on average 1.4263431542461005) internal successors, (823), 577 states have internal predecessors, (823), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 08:41:20,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 899 transitions. [2024-12-02 08:41:20,070 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 899 transitions. Word has length 153 [2024-12-02 08:41:20,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:20,070 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 899 transitions. [2024-12-02 08:41:20,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:20,070 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 899 transitions. [2024-12-02 08:41:20,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:41:20,071 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:20,071 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:41:20,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2024-12-02 08:41:20,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:20,271 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:20,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:20,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2008709915, now seen corresponding path program 1 times [2024-12-02 08:41:20,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:41:20,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601490461] [2024-12-02 08:41:20,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:20,272 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:20,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:41:20,274 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:41:20,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-12-02 08:41:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:20,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 08:41:20,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:20,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:41:21,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-12-02 08:41:21,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-12-02 08:41:21,530 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:21,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 32 [2024-12-02 08:41:21,624 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:41:21,624 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:41:21,900 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:41:21,900 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:21,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601490461] [2024-12-02 08:41:21,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601490461] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:41:21,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:41:21,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [18] total 22 [2024-12-02 08:41:21,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642358105] [2024-12-02 08:41:21,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:41:21,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:41:21,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:21,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:41:21,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:41:21,902 INFO L87 Difference]: Start difference. First operand 631 states and 899 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:22,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:22,326 INFO L93 Difference]: Finished difference Result 1474 states and 2098 transitions. [2024-12-02 08:41:22,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:41:22,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-12-02 08:41:22,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:22,329 INFO L225 Difference]: With dead ends: 1474 [2024-12-02 08:41:22,329 INFO L226 Difference]: Without dead ends: 846 [2024-12-02 08:41:22,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:41:22,330 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 186 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:22,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 496 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:41:22,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2024-12-02 08:41:22,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 748. [2024-12-02 08:41:22,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 694 states have (on average 1.4394812680115274) internal successors, (999), 694 states have internal predecessors, (999), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 08:41:22,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1075 transitions. [2024-12-02 08:41:22,402 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1075 transitions. Word has length 153 [2024-12-02 08:41:22,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:22,403 INFO L471 AbstractCegarLoop]: Abstraction has 748 states and 1075 transitions. [2024-12-02 08:41:22,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:22,403 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1075 transitions. [2024-12-02 08:41:22,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:41:22,403 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:22,403 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:41:22,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2024-12-02 08:41:22,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:22,604 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:22,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:22,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1476910755, now seen corresponding path program 1 times [2024-12-02 08:41:22,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:41:22,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498725135] [2024-12-02 08:41:22,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:22,605 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:22,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:41:22,607 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:41:22,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2024-12-02 08:41:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:22,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:41:22,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:22,882 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:41:22,882 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:41:22,882 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:22,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498725135] [2024-12-02 08:41:22,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498725135] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:41:22,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:41:22,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:41:22,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504316898] [2024-12-02 08:41:22,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:41:22,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:41:22,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:22,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:41:22,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:41:22,883 INFO L87 Difference]: Start difference. First operand 748 states and 1075 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:22,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:22,986 INFO L93 Difference]: Finished difference Result 1498 states and 2154 transitions. [2024-12-02 08:41:22,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:41:22,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-12-02 08:41:22,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:22,988 INFO L225 Difference]: With dead ends: 1498 [2024-12-02 08:41:22,988 INFO L226 Difference]: Without dead ends: 753 [2024-12-02 08:41:22,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:41:22,989 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:22,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 644 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:41:22,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-12-02 08:41:23,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 753. [2024-12-02 08:41:23,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 699 states have (on average 1.436337625178827) internal successors, (1004), 699 states have internal predecessors, (1004), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 08:41:23,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1080 transitions. [2024-12-02 08:41:23,069 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1080 transitions. Word has length 153 [2024-12-02 08:41:23,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:23,069 INFO L471 AbstractCegarLoop]: Abstraction has 753 states and 1080 transitions. [2024-12-02 08:41:23,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:23,070 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1080 transitions. [2024-12-02 08:41:23,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:41:23,070 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:23,070 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:41:23,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2024-12-02 08:41:23,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:23,271 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:23,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:23,271 INFO L85 PathProgramCache]: Analyzing trace with hash 2145708771, now seen corresponding path program 1 times [2024-12-02 08:41:23,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:41:23,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984313645] [2024-12-02 08:41:23,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:23,271 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:23,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:41:23,273 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:41:23,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2024-12-02 08:41:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:23,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 08:41:23,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:23,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 08:41:23,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-12-02 08:41:23,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:23,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-12-02 08:41:23,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:23,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 52 [2024-12-02 08:41:24,338 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:24,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 44 [2024-12-02 08:41:24,391 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 253 proven. 6 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2024-12-02 08:41:24,391 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:41:24,530 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:41:24,530 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:24,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984313645] [2024-12-02 08:41:24,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984313645] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:41:24,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:41:24,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 15 [2024-12-02 08:41:24,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691530528] [2024-12-02 08:41:24,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:41:24,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:41:24,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:24,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:41:24,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:41:24,531 INFO L87 Difference]: Start difference. First operand 753 states and 1080 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:24,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:24,909 INFO L93 Difference]: Finished difference Result 1239 states and 1767 transitions. [2024-12-02 08:41:24,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:41:24,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-12-02 08:41:24,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:24,912 INFO L225 Difference]: With dead ends: 1239 [2024-12-02 08:41:24,912 INFO L226 Difference]: Without dead ends: 830 [2024-12-02 08:41:24,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:41:24,913 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 116 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:24,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 1163 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:41:24,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-12-02 08:41:24,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 752. [2024-12-02 08:41:24,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 698 states have (on average 1.4369627507163323) internal successors, (1003), 698 states have internal predecessors, (1003), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 08:41:24,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1079 transitions. [2024-12-02 08:41:24,986 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1079 transitions. Word has length 153 [2024-12-02 08:41:24,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:24,987 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1079 transitions. [2024-12-02 08:41:24,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:24,987 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1079 transitions. [2024-12-02 08:41:24,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:41:24,987 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:24,987 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:41:24,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2024-12-02 08:41:25,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:25,188 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:25,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:25,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1566593089, now seen corresponding path program 1 times [2024-12-02 08:41:25,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:41:25,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062817327] [2024-12-02 08:41:25,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:25,189 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:25,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:41:25,190 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:41:25,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2024-12-02 08:41:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:25,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-12-02 08:41:25,525 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:26,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-12-02 08:41:26,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 08:41:26,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 08:41:26,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:26,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-12-02 08:41:26,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2024-12-02 08:41:27,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2024-12-02 08:41:28,416 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:28,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 76 [2024-12-02 08:41:29,773 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:29,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 107 treesize of output 55 [2024-12-02 08:41:31,440 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 149 proven. 376 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-12-02 08:41:31,440 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:41:33,159 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:41:33,159 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:33,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1062817327] [2024-12-02 08:41:33,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1062817327] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:41:33,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:41:33,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [39] total 51 [2024-12-02 08:41:33,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153197806] [2024-12-02 08:41:33,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:41:33,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:41:33,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:33,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:41:33,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=2355, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 08:41:33,160 INFO L87 Difference]: Start difference. First operand 752 states and 1079 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:36,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:36,040 INFO L93 Difference]: Finished difference Result 1790 states and 2527 transitions. [2024-12-02 08:41:36,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:41:36,041 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-12-02 08:41:36,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:36,043 INFO L225 Difference]: With dead ends: 1790 [2024-12-02 08:41:36,044 INFO L226 Difference]: Without dead ends: 1041 [2024-12-02 08:41:36,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 255 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1226 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=269, Invalid=3271, Unknown=0, NotChecked=0, Total=3540 [2024-12-02 08:41:36,044 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 327 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:36,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 2492 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 08:41:36,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-12-02 08:41:36,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 750. [2024-12-02 08:41:36,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 696 states have (on average 1.4382183908045978) internal successors, (1001), 696 states have internal predecessors, (1001), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 08:41:36,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1077 transitions. [2024-12-02 08:41:36,118 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1077 transitions. Word has length 153 [2024-12-02 08:41:36,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:36,118 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 1077 transitions. [2024-12-02 08:41:36,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:36,118 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1077 transitions. [2024-12-02 08:41:36,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 08:41:36,119 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:36,119 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:41:36,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2024-12-02 08:41:36,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:36,319 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:36,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:36,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1786618673, now seen corresponding path program 1 times [2024-12-02 08:41:36,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:41:36,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924180633] [2024-12-02 08:41:36,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:36,320 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:36,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:41:36,322 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:41:36,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2024-12-02 08:41:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:36,573 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:41:36,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:36,616 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:41:36,616 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:41:36,616 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:36,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924180633] [2024-12-02 08:41:36,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924180633] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:41:36,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:41:36,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:41:36,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819319014] [2024-12-02 08:41:36,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:41:36,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:41:36,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:36,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:41:36,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:41:36,617 INFO L87 Difference]: Start difference. First operand 750 states and 1077 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:37,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:37,024 INFO L93 Difference]: Finished difference Result 2082 states and 2940 transitions. [2024-12-02 08:41:37,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:41:37,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-12-02 08:41:37,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:37,027 INFO L225 Difference]: With dead ends: 2082 [2024-12-02 08:41:37,027 INFO L226 Difference]: Without dead ends: 1335 [2024-12-02 08:41:37,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:41:37,028 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 135 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:37,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 527 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:41:37,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2024-12-02 08:41:37,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 893. [2024-12-02 08:41:37,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 893 states, 839 states have (on average 1.3873659117997617) internal successors, (1164), 839 states have internal predecessors, (1164), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 08:41:37,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1240 transitions. [2024-12-02 08:41:37,112 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1240 transitions. Word has length 154 [2024-12-02 08:41:37,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:37,112 INFO L471 AbstractCegarLoop]: Abstraction has 893 states and 1240 transitions. [2024-12-02 08:41:37,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:37,112 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1240 transitions. [2024-12-02 08:41:37,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 08:41:37,113 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:37,113 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:41:37,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2024-12-02 08:41:37,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:37,313 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:37,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:37,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1611086248, now seen corresponding path program 1 times [2024-12-02 08:41:37,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:41:37,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376539786] [2024-12-02 08:41:37,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:37,314 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:37,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:41:37,315 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:41:37,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2024-12-02 08:41:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:37,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:41:37,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:37,583 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:41:37,583 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:41:37,583 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:37,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376539786] [2024-12-02 08:41:37,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376539786] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:41:37,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:41:37,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:41:37,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961360445] [2024-12-02 08:41:37,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:41:37,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:41:37,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:37,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:41:37,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:41:37,584 INFO L87 Difference]: Start difference. First operand 893 states and 1240 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:37,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:37,729 INFO L93 Difference]: Finished difference Result 1785 states and 2481 transitions. [2024-12-02 08:41:37,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:41:37,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 156 [2024-12-02 08:41:37,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:37,732 INFO L225 Difference]: With dead ends: 1785 [2024-12-02 08:41:37,732 INFO L226 Difference]: Without dead ends: 895 [2024-12-02 08:41:37,733 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:41:37,733 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:37,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 327 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:41:37,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2024-12-02 08:41:37,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 895. [2024-12-02 08:41:37,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 841 states have (on average 1.3864447086801426) internal successors, (1166), 841 states have internal predecessors, (1166), 38 states have call successors, (38), 15 states have call predecessors, (38), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 08:41:37,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1242 transitions. [2024-12-02 08:41:37,820 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1242 transitions. Word has length 156 [2024-12-02 08:41:37,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:37,820 INFO L471 AbstractCegarLoop]: Abstraction has 895 states and 1242 transitions. [2024-12-02 08:41:37,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:37,820 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1242 transitions. [2024-12-02 08:41:37,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 08:41:37,820 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:37,820 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:41:37,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2024-12-02 08:41:38,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:38,021 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:38,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:38,021 INFO L85 PathProgramCache]: Analyzing trace with hash 163921114, now seen corresponding path program 1 times [2024-12-02 08:41:38,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:41:38,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548873014] [2024-12-02 08:41:38,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:38,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:38,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:41:38,023 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:41:38,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2024-12-02 08:41:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:38,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 08:41:38,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:38,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:41:38,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-12-02 08:41:38,945 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:38,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 39 [2024-12-02 08:41:39,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:39,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 39 [2024-12-02 08:41:39,212 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 288 proven. 39 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-12-02 08:41:39,212 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:41:39,419 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:41:39,419 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:39,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548873014] [2024-12-02 08:41:39,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [548873014] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:41:39,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:41:39,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 16 [2024-12-02 08:41:39,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469150743] [2024-12-02 08:41:39,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:41:39,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:41:39,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:39,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:41:39,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:41:39,421 INFO L87 Difference]: Start difference. First operand 895 states and 1242 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:39,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:39,756 INFO L93 Difference]: Finished difference Result 1431 states and 1964 transitions. [2024-12-02 08:41:39,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:41:39,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 156 [2024-12-02 08:41:39,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:39,759 INFO L225 Difference]: With dead ends: 1431 [2024-12-02 08:41:39,759 INFO L226 Difference]: Without dead ends: 1429 [2024-12-02 08:41:39,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:41:39,760 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 68 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:39,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 872 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:41:39,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2024-12-02 08:41:39,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 1425. [2024-12-02 08:41:39,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 1361 states have (on average 1.3710506980161645) internal successors, (1866), 1363 states have internal predecessors, (1866), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 08:41:39,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1958 transitions. [2024-12-02 08:41:39,871 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1958 transitions. Word has length 156 [2024-12-02 08:41:39,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:39,871 INFO L471 AbstractCegarLoop]: Abstraction has 1425 states and 1958 transitions. [2024-12-02 08:41:39,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:39,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1958 transitions. [2024-12-02 08:41:39,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 08:41:39,872 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:39,872 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:41:39,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2024-12-02 08:41:40,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:40,072 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:40,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:40,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1246750327, now seen corresponding path program 1 times [2024-12-02 08:41:40,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:41:40,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103639955] [2024-12-02 08:41:40,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:40,073 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:40,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:41:40,075 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:41:40,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2024-12-02 08:41:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:40,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:41:40,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:40,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:41:40,350 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:41:40,351 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:41:40,351 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:40,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103639955] [2024-12-02 08:41:40,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103639955] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:41:40,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:41:40,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:41:40,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930386645] [2024-12-02 08:41:40,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:41:40,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:41:40,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:40,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:41:40,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:41:40,352 INFO L87 Difference]: Start difference. First operand 1425 states and 1958 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:40,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:40,494 INFO L93 Difference]: Finished difference Result 2847 states and 3913 transitions. [2024-12-02 08:41:40,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:41:40,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 156 [2024-12-02 08:41:40,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:40,498 INFO L225 Difference]: With dead ends: 2847 [2024-12-02 08:41:40,499 INFO L226 Difference]: Without dead ends: 1425 [2024-12-02 08:41:40,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:41:40,500 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:40,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 481 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:41:40,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2024-12-02 08:41:40,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1425. [2024-12-02 08:41:40,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 1361 states have (on average 1.2887582659808965) internal successors, (1754), 1363 states have internal predecessors, (1754), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 08:41:40,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1846 transitions. [2024-12-02 08:41:40,642 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1846 transitions. Word has length 156 [2024-12-02 08:41:40,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:40,642 INFO L471 AbstractCegarLoop]: Abstraction has 1425 states and 1846 transitions. [2024-12-02 08:41:40,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:40,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1846 transitions. [2024-12-02 08:41:40,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 08:41:40,643 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:40,643 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:41:40,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Ended with exit code 0 [2024-12-02 08:41:40,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:40,844 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:40,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:40,844 INFO L85 PathProgramCache]: Analyzing trace with hash -100897105, now seen corresponding path program 1 times [2024-12-02 08:41:40,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:41:40,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73847202] [2024-12-02 08:41:40,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:40,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:40,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:41:40,846 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:41:40,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2024-12-02 08:41:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:41,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 08:41:41,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:41,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2024-12-02 08:41:41,755 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:41,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 20 [2024-12-02 08:41:41,786 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 332 proven. 66 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-12-02 08:41:41,786 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:41:42,138 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 66 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2024-12-02 08:41:42,138 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:42,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73847202] [2024-12-02 08:41:42,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73847202] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:41:42,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:41:42,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 18 [2024-12-02 08:41:42,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491475089] [2024-12-02 08:41:42,139 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:41:42,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 08:41:42,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:42,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 08:41:42,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:41:42,140 INFO L87 Difference]: Start difference. First operand 1425 states and 1846 transitions. Second operand has 18 states, 14 states have (on average 7.642857142857143) internal successors, (107), 18 states have internal predecessors, (107), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) [2024-12-02 08:41:43,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:43,706 INFO L93 Difference]: Finished difference Result 3158 states and 4129 transitions. [2024-12-02 08:41:43,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-12-02 08:41:43,707 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 7.642857142857143) internal successors, (107), 18 states have internal predecessors, (107), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) Word has length 157 [2024-12-02 08:41:43,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:43,710 INFO L225 Difference]: With dead ends: 3158 [2024-12-02 08:41:43,710 INFO L226 Difference]: Without dead ends: 1736 [2024-12-02 08:41:43,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 296 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=353, Invalid=1207, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 08:41:43,712 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 405 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:43,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1515 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:41:43,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-12-02 08:41:43,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1360. [2024-12-02 08:41:43,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1274 states have (on average 1.2755102040816326) internal successors, (1625), 1276 states have internal predecessors, (1625), 56 states have call successors, (56), 29 states have call predecessors, (56), 29 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 08:41:43,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 1737 transitions. [2024-12-02 08:41:43,893 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 1737 transitions. Word has length 157 [2024-12-02 08:41:43,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:43,893 INFO L471 AbstractCegarLoop]: Abstraction has 1360 states and 1737 transitions. [2024-12-02 08:41:43,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 7.642857142857143) internal successors, (107), 18 states have internal predecessors, (107), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) [2024-12-02 08:41:43,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 1737 transitions. [2024-12-02 08:41:43,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 08:41:43,894 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:43,895 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:41:43,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2024-12-02 08:41:44,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:44,095 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:44,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:44,095 INFO L85 PathProgramCache]: Analyzing trace with hash -2112059860, now seen corresponding path program 1 times [2024-12-02 08:41:44,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:41:44,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900882731] [2024-12-02 08:41:44,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:44,096 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:44,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:41:44,097 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:41:44,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2024-12-02 08:41:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:44,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:41:44,359 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:41:44,403 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:41:44,403 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:44,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900882731] [2024-12-02 08:41:44,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900882731] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:41:44,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:41:44,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:41:44,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835790697] [2024-12-02 08:41:44,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:41:44,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:41:44,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:44,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:41:44,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:41:44,404 INFO L87 Difference]: Start difference. First operand 1360 states and 1737 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:44,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:44,925 INFO L93 Difference]: Finished difference Result 3249 states and 4178 transitions. [2024-12-02 08:41:44,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:41:44,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 157 [2024-12-02 08:41:44,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:44,929 INFO L225 Difference]: With dead ends: 3249 [2024-12-02 08:41:44,929 INFO L226 Difference]: Without dead ends: 1892 [2024-12-02 08:41:44,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:41:44,930 INFO L435 NwaCegarLoop]: 283 mSDtfsCounter, 141 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:44,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 906 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:41:44,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2024-12-02 08:41:45,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1360. [2024-12-02 08:41:45,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1274 states have (on average 1.2660910518053374) internal successors, (1613), 1276 states have internal predecessors, (1613), 56 states have call successors, (56), 29 states have call predecessors, (56), 29 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 08:41:45,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 1725 transitions. [2024-12-02 08:41:45,108 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 1725 transitions. Word has length 157 [2024-12-02 08:41:45,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:45,109 INFO L471 AbstractCegarLoop]: Abstraction has 1360 states and 1725 transitions. [2024-12-02 08:41:45,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:45,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 1725 transitions. [2024-12-02 08:41:45,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 08:41:45,110 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:45,110 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:41:45,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Ended with exit code 0 [2024-12-02 08:41:45,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:45,311 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:45,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:45,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1150625050, now seen corresponding path program 1 times [2024-12-02 08:41:45,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:41:45,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689156447] [2024-12-02 08:41:45,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:45,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:45,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:41:45,313 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:41:45,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2024-12-02 08:41:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:45,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 08:41:45,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:45,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-12-02 08:41:45,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2024-12-02 08:41:45,966 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:45,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2024-12-02 08:41:46,081 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:46,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2024-12-02 08:41:46,905 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:46,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 49 [2024-12-02 08:41:47,167 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 88 proven. 51 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2024-12-02 08:41:47,167 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:41:47,293 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:41:47,293 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:47,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689156447] [2024-12-02 08:41:47,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689156447] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:41:47,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:41:47,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2024-12-02 08:41:47,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945790697] [2024-12-02 08:41:47,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:41:47,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:41:47,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:47,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:41:47,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:41:47,294 INFO L87 Difference]: Start difference. First operand 1360 states and 1725 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:47,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:47,603 INFO L93 Difference]: Finished difference Result 3636 states and 4609 transitions. [2024-12-02 08:41:47,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:41:47,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 158 [2024-12-02 08:41:47,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:47,610 INFO L225 Difference]: With dead ends: 3636 [2024-12-02 08:41:47,610 INFO L226 Difference]: Without dead ends: 2279 [2024-12-02 08:41:47,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:41:47,612 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 101 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:47,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 433 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:41:47,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2024-12-02 08:41:47,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2221. [2024-12-02 08:41:47,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 2135 states have (on average 1.2637002341920374) internal successors, (2698), 2137 states have internal predecessors, (2698), 56 states have call successors, (56), 29 states have call predecessors, (56), 29 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 08:41:47,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 2810 transitions. [2024-12-02 08:41:47,920 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 2810 transitions. Word has length 158 [2024-12-02 08:41:47,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:47,920 INFO L471 AbstractCegarLoop]: Abstraction has 2221 states and 2810 transitions. [2024-12-02 08:41:47,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:47,920 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 2810 transitions. [2024-12-02 08:41:47,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 08:41:47,922 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:47,922 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:41:47,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Ended with exit code 0 [2024-12-02 08:41:48,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:48,122 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:48,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:48,123 INFO L85 PathProgramCache]: Analyzing trace with hash -470566680, now seen corresponding path program 1 times [2024-12-02 08:41:48,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:41:48,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267691667] [2024-12-02 08:41:48,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:48,123 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:48,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:41:48,125 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:41:48,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2024-12-02 08:41:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:48,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 08:41:48,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:48,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:41:48,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:41:48,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:41:48,804 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:48,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-12-02 08:41:48,974 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 204 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-12-02 08:41:48,974 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:41:49,115 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:41:49,115 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:49,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267691667] [2024-12-02 08:41:49,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267691667] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:41:49,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:41:49,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-12-02 08:41:49,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612398115] [2024-12-02 08:41:49,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:41:49,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:41:49,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:49,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:41:49,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:41:49,116 INFO L87 Difference]: Start difference. First operand 2221 states and 2810 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:49,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:49,469 INFO L93 Difference]: Finished difference Result 4953 states and 6244 transitions. [2024-12-02 08:41:49,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:41:49,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 158 [2024-12-02 08:41:49,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:49,474 INFO L225 Difference]: With dead ends: 4953 [2024-12-02 08:41:49,474 INFO L226 Difference]: Without dead ends: 2735 [2024-12-02 08:41:49,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:41:49,476 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 92 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:49,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 436 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:41:49,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2735 states. [2024-12-02 08:41:49,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2735 to 2731. [2024-12-02 08:41:49,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2731 states, 2639 states have (on average 1.2550208412277377) internal successors, (3312), 2643 states have internal predecessors, (3312), 60 states have call successors, (60), 31 states have call predecessors, (60), 31 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 08:41:49,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2731 states to 2731 states and 3432 transitions. [2024-12-02 08:41:49,686 INFO L78 Accepts]: Start accepts. Automaton has 2731 states and 3432 transitions. Word has length 158 [2024-12-02 08:41:49,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:49,687 INFO L471 AbstractCegarLoop]: Abstraction has 2731 states and 3432 transitions. [2024-12-02 08:41:49,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:41:49,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2731 states and 3432 transitions. [2024-12-02 08:41:49,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 08:41:49,688 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:49,688 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:41:49,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Ended with exit code 0 [2024-12-02 08:41:49,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:49,888 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:49,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:49,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1343196839, now seen corresponding path program 1 times [2024-12-02 08:41:49,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:41:49,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773959845] [2024-12-02 08:41:49,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:49,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:49,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:41:49,891 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:41:49,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2024-12-02 08:41:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:50,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 08:41:50,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:50,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:41:50,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-12-02 08:41:50,906 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:50,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 39 [2024-12-02 08:41:50,947 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:50,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 19 [2024-12-02 08:41:50,970 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 288 proven. 39 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-12-02 08:41:50,970 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:41:51,230 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 15 proven. 39 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-12-02 08:41:51,230 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:51,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773959845] [2024-12-02 08:41:51,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1773959845] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:41:51,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:41:51,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2024-12-02 08:41:51,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110053402] [2024-12-02 08:41:51,231 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:41:51,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:41:51,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:51,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:41:51,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:41:51,238 INFO L87 Difference]: Start difference. First operand 2731 states and 3432 transitions. Second operand has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 14 states have internal predecessors, (106), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 3 states have call predecessors, (33), 5 states have call successors, (33) [2024-12-02 08:41:52,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:52,693 INFO L93 Difference]: Finished difference Result 5165 states and 6595 transitions. [2024-12-02 08:41:52,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 08:41:52,694 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 14 states have internal predecessors, (106), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 3 states have call predecessors, (33), 5 states have call successors, (33) Word has length 159 [2024-12-02 08:41:52,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:52,699 INFO L225 Difference]: With dead ends: 5165 [2024-12-02 08:41:52,699 INFO L226 Difference]: Without dead ends: 2437 [2024-12-02 08:41:52,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 304 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2024-12-02 08:41:52,701 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 344 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:52,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 698 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:41:52,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2024-12-02 08:41:52,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 1889. [2024-12-02 08:41:52,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1821 states have (on average 1.2240527182866556) internal successors, (2229), 1823 states have internal predecessors, (2229), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 08:41:52,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2313 transitions. [2024-12-02 08:41:52,857 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2313 transitions. Word has length 159 [2024-12-02 08:41:52,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:52,857 INFO L471 AbstractCegarLoop]: Abstraction has 1889 states and 2313 transitions. [2024-12-02 08:41:52,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 14 states have internal predecessors, (106), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 3 states have call predecessors, (33), 5 states have call successors, (33) [2024-12-02 08:41:52,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2313 transitions. [2024-12-02 08:41:52,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 08:41:52,858 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:52,858 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:41:52,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Ended with exit code 0 [2024-12-02 08:41:53,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:53,059 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:53,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:53,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1998557362, now seen corresponding path program 1 times [2024-12-02 08:41:53,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:41:53,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389497557] [2024-12-02 08:41:53,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:53,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:41:53,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:41:53,061 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:41:53,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2024-12-02 08:41:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:53,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 08:41:53,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:53,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:41:54,532 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:54,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 188 treesize of output 98 [2024-12-02 08:41:54,879 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:54,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 384 treesize of output 134 [2024-12-02 08:41:55,005 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2024-12-02 08:41:55,005 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:41:55,370 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:41:55,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389497557] [2024-12-02 08:41:55,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389497557] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:41:55,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [399169072] [2024-12-02 08:41:55,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:55,371 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:41:55,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:41:55,372 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:41:55,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2024-12-02 08:41:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:56,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 08:41:56,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:56,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-12-02 08:41:58,712 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:58,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 100 [2024-12-02 08:41:59,231 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:41:59,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 326 treesize of output 142 [2024-12-02 08:41:59,262 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2024-12-02 08:41:59,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:41:59,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [399169072] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:41:59,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:41:59,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 18 [2024-12-02 08:41:59,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280749537] [2024-12-02 08:41:59,530 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:41:59,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 08:41:59,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:41:59,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 08:41:59,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:41:59,531 INFO L87 Difference]: Start difference. First operand 1889 states and 2313 transitions. Second operand has 19 states, 19 states have (on average 6.894736842105263) internal successors, (131), 18 states have internal predecessors, (131), 4 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-12-02 08:42:04,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:04,581 INFO L93 Difference]: Finished difference Result 6193 states and 7556 transitions. [2024-12-02 08:42:04,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 08:42:04,581 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.894736842105263) internal successors, (131), 18 states have internal predecessors, (131), 4 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) Word has length 160 [2024-12-02 08:42:04,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:04,586 INFO L225 Difference]: With dead ends: 6193 [2024-12-02 08:42:04,586 INFO L226 Difference]: Without dead ends: 4307 [2024-12-02 08:42:04,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 375 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=273, Invalid=1619, Unknown=0, NotChecked=0, Total=1892 [2024-12-02 08:42:04,588 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 552 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:04,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 2718 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-12-02 08:42:04,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2024-12-02 08:42:04,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 2893. [2024-12-02 08:42:04,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2788 states have (on average 1.255738880918221) internal successors, (3501), 2790 states have internal predecessors, (3501), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:42:04,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 3629 transitions. [2024-12-02 08:42:04,827 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 3629 transitions. Word has length 160 [2024-12-02 08:42:04,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:04,827 INFO L471 AbstractCegarLoop]: Abstraction has 2893 states and 3629 transitions. [2024-12-02 08:42:04,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.894736842105263) internal successors, (131), 18 states have internal predecessors, (131), 4 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-12-02 08:42:04,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 3629 transitions. [2024-12-02 08:42:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 08:42:04,829 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:04,829 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:04,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Ended with exit code 0 [2024-12-02 08:42:05,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2024-12-02 08:42:05,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:42:05,229 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:05,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:05,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1602913538, now seen corresponding path program 1 times [2024-12-02 08:42:05,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:42:05,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458578748] [2024-12-02 08:42:05,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:05,230 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:05,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:42:05,232 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:42:05,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2024-12-02 08:42:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:05,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 08:42:05,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:05,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2024-12-02 08:42:06,118 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:42:06,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 20 [2024-12-02 08:42:06,154 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 332 proven. 66 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-12-02 08:42:06,155 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:42:06,518 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 66 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2024-12-02 08:42:06,518 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:42:06,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458578748] [2024-12-02 08:42:06,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458578748] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:42:06,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:42:06,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 18 [2024-12-02 08:42:06,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930896300] [2024-12-02 08:42:06,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:42:06,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 08:42:06,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:42:06,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 08:42:06,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:42:06,520 INFO L87 Difference]: Start difference. First operand 2893 states and 3629 transitions. Second operand has 18 states, 14 states have (on average 8.642857142857142) internal successors, (121), 18 states have internal predecessors, (121), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) [2024-12-02 08:42:08,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:08,749 INFO L93 Difference]: Finished difference Result 6763 states and 8660 transitions. [2024-12-02 08:42:08,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-12-02 08:42:08,750 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 8.642857142857142) internal successors, (121), 18 states have internal predecessors, (121), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) Word has length 160 [2024-12-02 08:42:08,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:08,754 INFO L225 Difference]: With dead ends: 6763 [2024-12-02 08:42:08,754 INFO L226 Difference]: Without dead ends: 3873 [2024-12-02 08:42:08,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 302 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=353, Invalid=1207, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 08:42:08,756 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 384 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:08,756 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1780 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 08:42:08,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3873 states. [2024-12-02 08:42:08,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3873 to 2893. [2024-12-02 08:42:08,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2788 states have (on average 1.2514347202295553) internal successors, (3489), 2790 states have internal predecessors, (3489), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:42:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 3617 transitions. [2024-12-02 08:42:08,976 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 3617 transitions. Word has length 160 [2024-12-02 08:42:08,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:08,976 INFO L471 AbstractCegarLoop]: Abstraction has 2893 states and 3617 transitions. [2024-12-02 08:42:08,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 8.642857142857142) internal successors, (121), 18 states have internal predecessors, (121), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) [2024-12-02 08:42:08,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 3617 transitions. [2024-12-02 08:42:08,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 08:42:08,977 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:08,977 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:08,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Ended with exit code 0 [2024-12-02 08:42:09,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:09,178 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:09,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:09,178 INFO L85 PathProgramCache]: Analyzing trace with hash 193119028, now seen corresponding path program 1 times [2024-12-02 08:42:09,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:42:09,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688996618] [2024-12-02 08:42:09,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:09,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:09,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:42:09,180 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:42:09,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2024-12-02 08:42:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:09,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:42:09,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:09,536 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:42:09,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-12-02 08:42:09,560 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:42:09,560 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:42:09,560 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:42:09,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688996618] [2024-12-02 08:42:09,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1688996618] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:09,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:09,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:42:09,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046515832] [2024-12-02 08:42:09,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:09,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:42:09,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:42:09,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:42:09,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:42:09,561 INFO L87 Difference]: Start difference. First operand 2893 states and 3617 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:10,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:10,474 INFO L93 Difference]: Finished difference Result 6152 states and 7642 transitions. [2024-12-02 08:42:10,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:42:10,475 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2024-12-02 08:42:10,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:10,478 INFO L225 Difference]: With dead ends: 6152 [2024-12-02 08:42:10,478 INFO L226 Difference]: Without dead ends: 3262 [2024-12-02 08:42:10,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:42:10,480 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 115 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:10,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 809 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:42:10,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2024-12-02 08:42:10,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 2673. [2024-12-02 08:42:10,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2673 states, 2568 states have (on average 1.2153426791277258) internal successors, (3121), 2570 states have internal predecessors, (3121), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:42:10,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 3249 transitions. [2024-12-02 08:42:10,696 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 3249 transitions. Word has length 160 [2024-12-02 08:42:10,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:10,696 INFO L471 AbstractCegarLoop]: Abstraction has 2673 states and 3249 transitions. [2024-12-02 08:42:10,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:10,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 3249 transitions. [2024-12-02 08:42:10,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 08:42:10,697 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:10,697 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:10,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Ended with exit code 0 [2024-12-02 08:42:10,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:10,898 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:10,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:10,898 INFO L85 PathProgramCache]: Analyzing trace with hash 2057146109, now seen corresponding path program 1 times [2024-12-02 08:42:10,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:42:10,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670634333] [2024-12-02 08:42:10,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:10,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:10,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:42:10,900 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:42:10,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2024-12-02 08:42:11,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:11,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 08:42:11,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:11,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:42:11,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2024-12-02 08:42:12,343 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:42:12,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 31 [2024-12-02 08:42:12,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2024-12-02 08:42:12,674 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:42:12,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:42:13,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2024-12-02 08:42:13,196 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:42:13,196 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:42:13,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670634333] [2024-12-02 08:42:13,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [670634333] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:42:13,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:42:13,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 24 [2024-12-02 08:42:13,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322537823] [2024-12-02 08:42:13,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:13,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:42:13,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:42:13,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:42:13,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:42:13,197 INFO L87 Difference]: Start difference. First operand 2673 states and 3249 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:14,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:14,734 INFO L93 Difference]: Finished difference Result 6369 states and 7652 transitions. [2024-12-02 08:42:14,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:42:14,735 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2024-12-02 08:42:14,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:14,738 INFO L225 Difference]: With dead ends: 6369 [2024-12-02 08:42:14,739 INFO L226 Difference]: Without dead ends: 3699 [2024-12-02 08:42:14,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:42:14,741 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 240 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:14,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 819 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 08:42:14,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states. [2024-12-02 08:42:14,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 3171. [2024-12-02 08:42:14,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3171 states, 3066 states have (on average 1.1986301369863013) internal successors, (3675), 3068 states have internal predecessors, (3675), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:42:14,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3171 states to 3171 states and 3803 transitions. [2024-12-02 08:42:14,969 INFO L78 Accepts]: Start accepts. Automaton has 3171 states and 3803 transitions. Word has length 160 [2024-12-02 08:42:14,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:14,969 INFO L471 AbstractCegarLoop]: Abstraction has 3171 states and 3803 transitions. [2024-12-02 08:42:14,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:14,969 INFO L276 IsEmpty]: Start isEmpty. Operand 3171 states and 3803 transitions. [2024-12-02 08:42:14,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 08:42:14,971 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:14,971 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:14,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Ended with exit code 0 [2024-12-02 08:42:15,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:15,171 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:15,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:15,172 INFO L85 PathProgramCache]: Analyzing trace with hash -143303116, now seen corresponding path program 1 times [2024-12-02 08:42:15,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:42:15,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361357805] [2024-12-02 08:42:15,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:15,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:15,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:42:15,173 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:42:15,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2024-12-02 08:42:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:15,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:42:15,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:15,451 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 352 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2024-12-02 08:42:15,451 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:42:15,451 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:42:15,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361357805] [2024-12-02 08:42:15,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361357805] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:15,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:15,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:42:15,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383613710] [2024-12-02 08:42:15,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:15,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:42:15,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:42:15,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:42:15,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:42:15,452 INFO L87 Difference]: Start difference. First operand 3171 states and 3803 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:42:15,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:15,701 INFO L93 Difference]: Finished difference Result 6339 states and 7603 transitions. [2024-12-02 08:42:15,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:42:15,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 160 [2024-12-02 08:42:15,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:15,705 INFO L225 Difference]: With dead ends: 6339 [2024-12-02 08:42:15,705 INFO L226 Difference]: Without dead ends: 3171 [2024-12-02 08:42:15,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:42:15,707 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:15,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 478 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:42:15,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2024-12-02 08:42:15,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 3171. [2024-12-02 08:42:15,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3171 states, 3066 states have (on average 1.1979778212654926) internal successors, (3673), 3068 states have internal predecessors, (3673), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:42:15,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3171 states to 3171 states and 3801 transitions. [2024-12-02 08:42:15,924 INFO L78 Accepts]: Start accepts. Automaton has 3171 states and 3801 transitions. Word has length 160 [2024-12-02 08:42:15,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:15,924 INFO L471 AbstractCegarLoop]: Abstraction has 3171 states and 3801 transitions. [2024-12-02 08:42:15,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:42:15,924 INFO L276 IsEmpty]: Start isEmpty. Operand 3171 states and 3801 transitions. [2024-12-02 08:42:15,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 08:42:15,925 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:15,925 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:15,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Ended with exit code 0 [2024-12-02 08:42:16,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:16,126 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:16,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:16,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1588081533, now seen corresponding path program 1 times [2024-12-02 08:42:16,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:42:16,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668767071] [2024-12-02 08:42:16,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:16,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:16,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:42:16,128 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:42:16,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2024-12-02 08:42:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:16,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 08:42:16,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:16,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:42:17,800 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:42:17,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 33 [2024-12-02 08:42:17,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2024-12-02 08:42:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:42:18,201 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:42:18,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:42:18,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 1 [2024-12-02 08:42:18,996 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:42:18,996 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:42:18,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668767071] [2024-12-02 08:42:18,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668767071] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:42:18,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:42:18,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [21] total 30 [2024-12-02 08:42:18,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098146449] [2024-12-02 08:42:18,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:18,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:42:18,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:42:18,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:42:18,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2024-12-02 08:42:18,997 INFO L87 Difference]: Start difference. First operand 3171 states and 3801 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:20,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:20,875 INFO L93 Difference]: Finished difference Result 7870 states and 9357 transitions. [2024-12-02 08:42:20,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:42:20,876 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-12-02 08:42:20,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:20,880 INFO L225 Difference]: With dead ends: 7870 [2024-12-02 08:42:20,880 INFO L226 Difference]: Without dead ends: 4702 [2024-12-02 08:42:20,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=167, Invalid=1023, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 08:42:20,884 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 352 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:20,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 1005 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 08:42:20,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4702 states. [2024-12-02 08:42:21,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4702 to 3523. [2024-12-02 08:42:21,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3523 states, 3418 states have (on average 1.2062609713282622) internal successors, (4123), 3420 states have internal predecessors, (4123), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:42:21,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3523 states to 3523 states and 4251 transitions. [2024-12-02 08:42:21,127 INFO L78 Accepts]: Start accepts. Automaton has 3523 states and 4251 transitions. Word has length 162 [2024-12-02 08:42:21,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:21,127 INFO L471 AbstractCegarLoop]: Abstraction has 3523 states and 4251 transitions. [2024-12-02 08:42:21,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:21,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3523 states and 4251 transitions. [2024-12-02 08:42:21,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 08:42:21,129 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:21,129 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:21,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Ended with exit code 0 [2024-12-02 08:42:21,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:21,329 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:21,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:21,330 INFO L85 PathProgramCache]: Analyzing trace with hash 517281720, now seen corresponding path program 1 times [2024-12-02 08:42:21,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:42:21,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693142670] [2024-12-02 08:42:21,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:21,330 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:21,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:42:21,331 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:42:21,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2024-12-02 08:42:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:21,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 08:42:21,752 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:21,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:42:21,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-12-02 08:42:22,329 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:42:22,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 39 [2024-12-02 08:42:22,598 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:42:22,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 39 [2024-12-02 08:42:22,703 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 288 proven. 39 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-12-02 08:42:22,703 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:42:22,976 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:42:22,976 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:42:22,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1693142670] [2024-12-02 08:42:22,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1693142670] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:42:22,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:42:22,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 20 [2024-12-02 08:42:22,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483459451] [2024-12-02 08:42:22,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:22,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:42:22,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:42:22,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:42:22,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:42:22,977 INFO L87 Difference]: Start difference. First operand 3523 states and 4251 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:23,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:23,556 INFO L93 Difference]: Finished difference Result 3591 states and 4331 transitions. [2024-12-02 08:42:23,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:42:23,557 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-12-02 08:42:23,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:23,560 INFO L225 Difference]: With dead ends: 3591 [2024-12-02 08:42:23,560 INFO L226 Difference]: Without dead ends: 3589 [2024-12-02 08:42:23,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:42:23,561 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 52 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:23,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 1155 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:42:23,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3589 states. [2024-12-02 08:42:23,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3589 to 3537. [2024-12-02 08:42:23,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 3432 states have (on average 1.2065850815850816) internal successors, (4141), 3434 states have internal predecessors, (4141), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:42:23,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 4269 transitions. [2024-12-02 08:42:23,787 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 4269 transitions. Word has length 162 [2024-12-02 08:42:23,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:23,787 INFO L471 AbstractCegarLoop]: Abstraction has 3537 states and 4269 transitions. [2024-12-02 08:42:23,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:23,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 4269 transitions. [2024-12-02 08:42:23,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 08:42:23,788 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:23,788 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:23,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Ended with exit code 0 [2024-12-02 08:42:23,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:23,989 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:23,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:23,989 INFO L85 PathProgramCache]: Analyzing trace with hash -292064906, now seen corresponding path program 1 times [2024-12-02 08:42:23,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:42:23,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302490634] [2024-12-02 08:42:23,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:23,990 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:23,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:42:23,991 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:42:23,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2024-12-02 08:42:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:24,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:42:24,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:24,376 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:42:24,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 16 [2024-12-02 08:42:24,395 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:42:24,396 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:42:24,396 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:42:24,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302490634] [2024-12-02 08:42:24,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302490634] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:24,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:42:24,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:42:24,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628496655] [2024-12-02 08:42:24,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:24,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:42:24,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:42:24,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:42:24,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:42:24,397 INFO L87 Difference]: Start difference. First operand 3537 states and 4269 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:25,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:25,159 INFO L93 Difference]: Finished difference Result 7280 states and 8764 transitions. [2024-12-02 08:42:25,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:42:25,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-12-02 08:42:25,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:25,163 INFO L225 Difference]: With dead ends: 7280 [2024-12-02 08:42:25,163 INFO L226 Difference]: Without dead ends: 3746 [2024-12-02 08:42:25,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:42:25,165 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 82 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:25,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 583 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:42:25,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2024-12-02 08:42:25,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 3537. [2024-12-02 08:42:25,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 3432 states have (on average 1.206002331002331) internal successors, (4139), 3434 states have internal predecessors, (4139), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:42:25,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 4267 transitions. [2024-12-02 08:42:25,381 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 4267 transitions. Word has length 162 [2024-12-02 08:42:25,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:25,382 INFO L471 AbstractCegarLoop]: Abstraction has 3537 states and 4267 transitions. [2024-12-02 08:42:25,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:25,382 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 4267 transitions. [2024-12-02 08:42:25,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 08:42:25,383 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:25,383 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:25,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Ended with exit code 0 [2024-12-02 08:42:25,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:25,584 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:25,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:25,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1173287109, now seen corresponding path program 1 times [2024-12-02 08:42:25,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:42:25,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911272035] [2024-12-02 08:42:25,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:25,585 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:25,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:42:25,586 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:42:25,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2024-12-02 08:42:25,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:25,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 08:42:25,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:25,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:42:27,961 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:42:27,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 53 [2024-12-02 08:42:27,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 54 [2024-12-02 08:42:28,188 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:42:28,188 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:42:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:42:29,001 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:42:29,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [911272035] [2024-12-02 08:42:29,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [911272035] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:42:29,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:42:29,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [24] total 34 [2024-12-02 08:42:29,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939536626] [2024-12-02 08:42:29,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:29,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:42:29,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:42:29,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:42:29,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=947, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 08:42:29,002 INFO L87 Difference]: Start difference. First operand 3537 states and 4267 transitions. Second operand has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:30,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:30,953 INFO L93 Difference]: Finished difference Result 8298 states and 9879 transitions. [2024-12-02 08:42:30,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:42:30,954 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-12-02 08:42:30,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:30,960 INFO L225 Difference]: With dead ends: 8298 [2024-12-02 08:42:30,960 INFO L226 Difference]: Without dead ends: 4764 [2024-12-02 08:42:30,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=262, Invalid=1298, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 08:42:30,963 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 360 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:30,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1201 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 08:42:30,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4764 states. [2024-12-02 08:42:31,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4764 to 3657. [2024-12-02 08:42:31,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3657 states, 3552 states have (on average 1.2001689189189189) internal successors, (4263), 3554 states have internal predecessors, (4263), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:42:31,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3657 states to 3657 states and 4391 transitions. [2024-12-02 08:42:31,351 INFO L78 Accepts]: Start accepts. Automaton has 3657 states and 4391 transitions. Word has length 162 [2024-12-02 08:42:31,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:31,351 INFO L471 AbstractCegarLoop]: Abstraction has 3657 states and 4391 transitions. [2024-12-02 08:42:31,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:31,351 INFO L276 IsEmpty]: Start isEmpty. Operand 3657 states and 4391 transitions. [2024-12-02 08:42:31,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 08:42:31,354 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:31,354 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:31,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Ended with exit code 0 [2024-12-02 08:42:31,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:31,554 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:31,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:31,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1201622149, now seen corresponding path program 1 times [2024-12-02 08:42:31,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:42:31,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119740978] [2024-12-02 08:42:31,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:31,555 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:31,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:42:31,556 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:42:31,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2024-12-02 08:42:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:31,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 08:42:31,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:31,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:42:33,744 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:42:33,744 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:42:34,694 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:42:34,694 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:42:34,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119740978] [2024-12-02 08:42:34,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119740978] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:42:34,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:42:34,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [23] total 34 [2024-12-02 08:42:34,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695434288] [2024-12-02 08:42:34,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:34,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:42:34,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:42:34,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:42:34,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=938, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 08:42:34,695 INFO L87 Difference]: Start difference. First operand 3657 states and 4391 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:37,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:37,095 INFO L93 Difference]: Finished difference Result 8418 states and 10003 transitions. [2024-12-02 08:42:37,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:42:37,095 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-12-02 08:42:37,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:37,099 INFO L225 Difference]: With dead ends: 8418 [2024-12-02 08:42:37,099 INFO L226 Difference]: Without dead ends: 4764 [2024-12-02 08:42:37,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=292, Invalid=1348, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 08:42:37,102 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 497 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:37,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 1321 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 08:42:37,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4764 states. [2024-12-02 08:42:37,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4764 to 3749. [2024-12-02 08:42:37,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3749 states, 3644 states have (on average 1.1962129527991219) internal successors, (4359), 3646 states have internal predecessors, (4359), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:42:37,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3749 states to 3749 states and 4487 transitions. [2024-12-02 08:42:37,332 INFO L78 Accepts]: Start accepts. Automaton has 3749 states and 4487 transitions. Word has length 162 [2024-12-02 08:42:37,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:37,332 INFO L471 AbstractCegarLoop]: Abstraction has 3749 states and 4487 transitions. [2024-12-02 08:42:37,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:37,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3749 states and 4487 transitions. [2024-12-02 08:42:37,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 08:42:37,334 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:37,334 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:37,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Ended with exit code 0 [2024-12-02 08:42:37,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:37,534 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:37,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:37,534 INFO L85 PathProgramCache]: Analyzing trace with hash -286882555, now seen corresponding path program 1 times [2024-12-02 08:42:37,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:42:37,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139604616] [2024-12-02 08:42:37,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:37,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:37,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:42:37,536 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:42:37,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2024-12-02 08:42:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:37,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-02 08:42:37,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:39,512 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:42:39,512 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:42:40,640 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:42:40,641 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:42:40,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139604616] [2024-12-02 08:42:40,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139604616] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:42:40,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:42:40,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [21] total 32 [2024-12-02 08:42:40,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641111520] [2024-12-02 08:42:40,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:40,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:42:40,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:42:40,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:42:40,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=793, Unknown=0, NotChecked=0, Total=992 [2024-12-02 08:42:40,642 INFO L87 Difference]: Start difference. First operand 3749 states and 4487 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:43,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:43,827 INFO L93 Difference]: Finished difference Result 7940 states and 9477 transitions. [2024-12-02 08:42:43,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:42:43,828 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-12-02 08:42:43,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:43,832 INFO L225 Difference]: With dead ends: 7940 [2024-12-02 08:42:43,832 INFO L226 Difference]: Without dead ends: 4194 [2024-12-02 08:42:43,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=341, Invalid=1219, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 08:42:43,834 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 219 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:43,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 1597 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 08:42:43,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4194 states. [2024-12-02 08:42:44,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4194 to 3733. [2024-12-02 08:42:44,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3733 states, 3628 states have (on average 1.1970782800441013) internal successors, (4343), 3630 states have internal predecessors, (4343), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:42:44,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3733 states to 3733 states and 4471 transitions. [2024-12-02 08:42:44,072 INFO L78 Accepts]: Start accepts. Automaton has 3733 states and 4471 transitions. Word has length 162 [2024-12-02 08:42:44,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:44,073 INFO L471 AbstractCegarLoop]: Abstraction has 3733 states and 4471 transitions. [2024-12-02 08:42:44,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:44,073 INFO L276 IsEmpty]: Start isEmpty. Operand 3733 states and 4471 transitions. [2024-12-02 08:42:44,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 08:42:44,074 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:44,074 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:44,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Ended with exit code 0 [2024-12-02 08:42:44,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:44,275 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:44,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:44,275 INFO L85 PathProgramCache]: Analyzing trace with hash 400645057, now seen corresponding path program 1 times [2024-12-02 08:42:44,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:42:44,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492563390] [2024-12-02 08:42:44,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:44,275 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:44,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:42:44,277 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:42:44,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2024-12-02 08:42:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:44,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 08:42:44,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:44,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:42:46,646 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:42:46,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 111 treesize of output 55 [2024-12-02 08:42:46,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2024-12-02 08:42:46,849 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:42:46,849 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:42:47,912 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:42:47,912 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:42:47,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492563390] [2024-12-02 08:42:47,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492563390] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:42:47,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:42:47,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [23] total 34 [2024-12-02 08:42:47,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433561538] [2024-12-02 08:42:47,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:47,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:42:47,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:42:47,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:42:47,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=940, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 08:42:47,913 INFO L87 Difference]: Start difference. First operand 3733 states and 4471 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:50,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:50,560 INFO L93 Difference]: Finished difference Result 6229 states and 7487 transitions. [2024-12-02 08:42:50,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:42:50,561 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-12-02 08:42:50,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:50,565 INFO L225 Difference]: With dead ends: 6229 [2024-12-02 08:42:50,565 INFO L226 Difference]: Without dead ends: 4070 [2024-12-02 08:42:50,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=300, Invalid=1340, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 08:42:50,566 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 356 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:50,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1229 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 08:42:50,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4070 states. [2024-12-02 08:42:50,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4070 to 3727. [2024-12-02 08:42:50,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3727 states, 3622 states have (on average 1.1974047487575925) internal successors, (4337), 3624 states have internal predecessors, (4337), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:42:50,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 4465 transitions. [2024-12-02 08:42:50,818 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 4465 transitions. Word has length 162 [2024-12-02 08:42:50,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:50,818 INFO L471 AbstractCegarLoop]: Abstraction has 3727 states and 4465 transitions. [2024-12-02 08:42:50,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:42:50,818 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 4465 transitions. [2024-12-02 08:42:50,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 08:42:50,820 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:50,820 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:50,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Ended with exit code 0 [2024-12-02 08:42:51,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:51,020 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:51,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:51,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1764231800, now seen corresponding path program 1 times [2024-12-02 08:42:51,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:42:51,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898615829] [2024-12-02 08:42:51,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:51,021 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:42:51,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:42:51,023 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:42:51,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2024-12-02 08:42:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:51,478 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 08:42:51,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:51,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 10 [2024-12-02 08:42:55,314 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:42:55,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 196 treesize of output 100 [2024-12-02 08:42:55,708 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:42:55,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 392 treesize of output 136 [2024-12-02 08:42:55,878 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 10 proven. 382 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-12-02 08:42:55,878 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:42:56,302 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:42:56,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898615829] [2024-12-02 08:42:56,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898615829] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:42:56,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1713786416] [2024-12-02 08:42:56,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:56,302 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:42:56,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:42:56,304 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:42:56,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2024-12-02 08:42:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:57,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 08:42:57,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:59,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2024-12-02 08:43:07,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:43:07,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 156 treesize of output 94 [2024-12-02 08:43:07,765 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:43:07,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 289 treesize of output 145 [2024-12-02 08:43:07,794 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 10 proven. 382 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-12-02 08:43:07,794 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:08,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1713786416] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:08,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:43:08,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 26 [2024-12-02 08:43:08,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471802728] [2024-12-02 08:43:08,036 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:43:08,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-12-02 08:43:08,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:43:08,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-12-02 08:43:08,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=868, Unknown=3, NotChecked=0, Total=992 [2024-12-02 08:43:08,037 INFO L87 Difference]: Start difference. First operand 3727 states and 4465 transitions. Second operand has 27 states, 25 states have (on average 5.64) internal successors, (141), 24 states have internal predecessors, (141), 6 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) [2024-12-02 08:43:13,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:13,498 INFO L93 Difference]: Finished difference Result 10575 states and 12594 transitions. [2024-12-02 08:43:13,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-12-02 08:43:13,499 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 5.64) internal successors, (141), 24 states have internal predecessors, (141), 6 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) Word has length 162 [2024-12-02 08:43:13,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:13,504 INFO L225 Difference]: With dead ends: 10575 [2024-12-02 08:43:13,504 INFO L226 Difference]: Without dead ends: 6851 [2024-12-02 08:43:13,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 370 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 849 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=564, Invalid=3093, Unknown=3, NotChecked=0, Total=3660 [2024-12-02 08:43:13,508 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 1059 mSDsluCounter, 2574 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 2779 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:13,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 2779 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 08:43:13,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6851 states. [2024-12-02 08:43:13,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6851 to 3729. [2024-12-02 08:43:13,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3729 states, 3624 states have (on average 1.1972958057395144) internal successors, (4339), 3626 states have internal predecessors, (4339), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-12-02 08:43:13,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3729 states to 3729 states and 4467 transitions. [2024-12-02 08:43:13,824 INFO L78 Accepts]: Start accepts. Automaton has 3729 states and 4467 transitions. Word has length 162 [2024-12-02 08:43:13,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:13,824 INFO L471 AbstractCegarLoop]: Abstraction has 3729 states and 4467 transitions. [2024-12-02 08:43:13,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 5.64) internal successors, (141), 24 states have internal predecessors, (141), 6 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) [2024-12-02 08:43:13,825 INFO L276 IsEmpty]: Start isEmpty. Operand 3729 states and 4467 transitions. [2024-12-02 08:43:13,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-12-02 08:43:13,826 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:13,826 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:13,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (67)] Ended with exit code 0 [2024-12-02 08:43:14,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Ended with exit code 0 [2024-12-02 08:43:14,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:14,227 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:14,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:14,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1140950198, now seen corresponding path program 1 times [2024-12-02 08:43:14,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:43:14,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733675011] [2024-12-02 08:43:14,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:14,228 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:14,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:43:14,229 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:43:14,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2024-12-02 08:43:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:14,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:43:14,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:14,543 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-12-02 08:43:14,543 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:43:14,543 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:43:14,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733675011] [2024-12-02 08:43:14,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733675011] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:14,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:43:14,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:43:14,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993492713] [2024-12-02 08:43:14,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:14,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:43:14,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:43:14,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:43:14,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:43:14,544 INFO L87 Difference]: Start difference. First operand 3729 states and 4467 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:43:14,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:14,980 INFO L93 Difference]: Finished difference Result 6603 states and 7857 transitions. [2024-12-02 08:43:14,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:43:14,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 162 [2024-12-02 08:43:14,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:14,984 INFO L225 Difference]: With dead ends: 6603 [2024-12-02 08:43:14,984 INFO L226 Difference]: Without dead ends: 2865 [2024-12-02 08:43:14,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:43:14,986 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 1 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:14,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 665 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:43:14,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2024-12-02 08:43:15,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 2841. [2024-12-02 08:43:15,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2773 states have (on average 1.1795888928957807) internal successors, (3271), 2775 states have internal predecessors, (3271), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 08:43:15,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 3355 transitions. [2024-12-02 08:43:15,177 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 3355 transitions. Word has length 162 [2024-12-02 08:43:15,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:15,177 INFO L471 AbstractCegarLoop]: Abstraction has 2841 states and 3355 transitions. [2024-12-02 08:43:15,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:43:15,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 3355 transitions. [2024-12-02 08:43:15,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-02 08:43:15,179 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:15,179 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:15,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Ended with exit code 0 [2024-12-02 08:43:15,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:15,380 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:15,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:15,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1119322743, now seen corresponding path program 1 times [2024-12-02 08:43:15,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:43:15,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71381088] [2024-12-02 08:43:15,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:15,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:15,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:43:15,382 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:43:15,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2024-12-02 08:43:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:15,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 08:43:15,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:15,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:43:16,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:43:16,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 35 [2024-12-02 08:43:16,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2024-12-02 08:43:17,076 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:43:17,076 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:17,446 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:43:17,446 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:43:17,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71381088] [2024-12-02 08:43:17,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [71381088] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:17,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:43:17,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [18] total 22 [2024-12-02 08:43:17,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453181416] [2024-12-02 08:43:17,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:17,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:43:17,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:43:17,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:43:17,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:43:17,447 INFO L87 Difference]: Start difference. First operand 2841 states and 3355 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:18,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:18,137 INFO L93 Difference]: Finished difference Result 6139 states and 7212 transitions. [2024-12-02 08:43:18,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:43:18,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 164 [2024-12-02 08:43:18,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:18,142 INFO L225 Difference]: With dead ends: 6139 [2024-12-02 08:43:18,142 INFO L226 Difference]: Without dead ends: 3301 [2024-12-02 08:43:18,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:43:18,143 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 142 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:18,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 565 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:43:18,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3301 states. [2024-12-02 08:43:18,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3301 to 2891. [2024-12-02 08:43:18,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2891 states, 2823 states have (on average 1.1721572794899044) internal successors, (3309), 2825 states have internal predecessors, (3309), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 08:43:18,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2891 states to 2891 states and 3393 transitions. [2024-12-02 08:43:18,327 INFO L78 Accepts]: Start accepts. Automaton has 2891 states and 3393 transitions. Word has length 164 [2024-12-02 08:43:18,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:18,327 INFO L471 AbstractCegarLoop]: Abstraction has 2891 states and 3393 transitions. [2024-12-02 08:43:18,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:18,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2891 states and 3393 transitions. [2024-12-02 08:43:18,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-02 08:43:18,328 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:18,329 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:18,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Ended with exit code 0 [2024-12-02 08:43:18,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:18,529 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:18,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:18,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1859047634, now seen corresponding path program 1 times [2024-12-02 08:43:18,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:43:18,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440013950] [2024-12-02 08:43:18,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:18,530 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:18,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:43:18,531 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:43:18,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2024-12-02 08:43:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:18,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 08:43:18,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:18,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:43:19,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 08:43:19,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 08:43:19,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-12-02 08:43:19,618 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:43:19,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 42 [2024-12-02 08:43:20,004 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 296 proven. 51 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-12-02 08:43:20,004 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:20,142 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:43:20,142 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:43:20,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440013950] [2024-12-02 08:43:20,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440013950] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:20,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:43:20,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 13 [2024-12-02 08:43:20,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072530535] [2024-12-02 08:43:20,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:20,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:43:20,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:43:20,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:43:20,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:43:20,144 INFO L87 Difference]: Start difference. First operand 2891 states and 3393 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:20,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:20,427 INFO L93 Difference]: Finished difference Result 5821 states and 6830 transitions. [2024-12-02 08:43:20,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:43:20,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 165 [2024-12-02 08:43:20,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:20,431 INFO L225 Difference]: With dead ends: 5821 [2024-12-02 08:43:20,431 INFO L226 Difference]: Without dead ends: 2933 [2024-12-02 08:43:20,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:43:20,433 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 77 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:20,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 505 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:43:20,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2024-12-02 08:43:20,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2891. [2024-12-02 08:43:20,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2891 states, 2823 states have (on average 1.1700318809776833) internal successors, (3303), 2825 states have internal predecessors, (3303), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 08:43:20,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2891 states to 2891 states and 3387 transitions. [2024-12-02 08:43:20,627 INFO L78 Accepts]: Start accepts. Automaton has 2891 states and 3387 transitions. Word has length 165 [2024-12-02 08:43:20,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:20,627 INFO L471 AbstractCegarLoop]: Abstraction has 2891 states and 3387 transitions. [2024-12-02 08:43:20,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:20,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2891 states and 3387 transitions. [2024-12-02 08:43:20,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-12-02 08:43:20,629 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:20,629 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:20,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Forceful destruction successful, exit code 0 [2024-12-02 08:43:20,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:20,829 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:20,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:20,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1015042132, now seen corresponding path program 1 times [2024-12-02 08:43:20,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:43:20,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583203946] [2024-12-02 08:43:20,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:20,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:20,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:43:20,832 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:43:20,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2024-12-02 08:43:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:21,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 08:43:21,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:21,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 08:43:21,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-12-02 08:43:21,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-12-02 08:43:22,374 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:43:22,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 48 [2024-12-02 08:43:22,837 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 318 proven. 45 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-12-02 08:43:22,837 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:23,017 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:43:23,017 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:43:23,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583203946] [2024-12-02 08:43:23,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583203946] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:23,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:43:23,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2024-12-02 08:43:23,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351170581] [2024-12-02 08:43:23,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:23,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:43:23,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:43:23,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:43:23,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:43:23,019 INFO L87 Difference]: Start difference. First operand 2891 states and 3387 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:23,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:23,359 INFO L93 Difference]: Finished difference Result 5837 states and 6836 transitions. [2024-12-02 08:43:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:43:23,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 165 [2024-12-02 08:43:23,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:23,362 INFO L225 Difference]: With dead ends: 5837 [2024-12-02 08:43:23,363 INFO L226 Difference]: Without dead ends: 2949 [2024-12-02 08:43:23,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:43:23,364 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 86 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:23,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 566 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:43:23,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2024-12-02 08:43:23,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 2914. [2024-12-02 08:43:23,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2846 states have (on average 1.168306394940267) internal successors, (3325), 2848 states have internal predecessors, (3325), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 08:43:23,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 3409 transitions. [2024-12-02 08:43:23,561 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 3409 transitions. Word has length 165 [2024-12-02 08:43:23,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:23,561 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 3409 transitions. [2024-12-02 08:43:23,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:23,561 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 3409 transitions. [2024-12-02 08:43:23,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-12-02 08:43:23,562 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:23,562 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:23,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Ended with exit code 0 [2024-12-02 08:43:23,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:23,763 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:23,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:23,763 INFO L85 PathProgramCache]: Analyzing trace with hash 73355486, now seen corresponding path program 1 times [2024-12-02 08:43:23,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:43:23,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513559280] [2024-12-02 08:43:23,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:23,764 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:23,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:43:23,765 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:43:23,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2024-12-02 08:43:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:24,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 08:43:24,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:24,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 08:43:24,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2024-12-02 08:43:24,919 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:43:24,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 40 [2024-12-02 08:43:25,004 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 332 proven. 66 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-12-02 08:43:25,004 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:25,260 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:43:25,260 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:43:25,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513559280] [2024-12-02 08:43:25,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [513559280] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:25,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:43:25,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 21 [2024-12-02 08:43:25,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149153681] [2024-12-02 08:43:25,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:25,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:43:25,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:43:25,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:43:25,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2024-12-02 08:43:25,262 INFO L87 Difference]: Start difference. First operand 2914 states and 3409 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:25,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:25,929 INFO L93 Difference]: Finished difference Result 3032 states and 3547 transitions. [2024-12-02 08:43:25,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:43:25,929 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 167 [2024-12-02 08:43:25,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:25,932 INFO L225 Difference]: With dead ends: 3032 [2024-12-02 08:43:25,932 INFO L226 Difference]: Without dead ends: 3030 [2024-12-02 08:43:25,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:43:25,933 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 56 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:25,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1360 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:43:25,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2024-12-02 08:43:26,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2914. [2024-12-02 08:43:26,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2914 states, 2846 states have (on average 1.168306394940267) internal successors, (3325), 2848 states have internal predecessors, (3325), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 08:43:26,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 3409 transitions. [2024-12-02 08:43:26,120 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 3409 transitions. Word has length 167 [2024-12-02 08:43:26,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:26,120 INFO L471 AbstractCegarLoop]: Abstraction has 2914 states and 3409 transitions. [2024-12-02 08:43:26,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:26,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 3409 transitions. [2024-12-02 08:43:26,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-12-02 08:43:26,122 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:26,122 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:26,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Ended with exit code 0 [2024-12-02 08:43:26,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:26,322 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:26,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:26,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1059972441, now seen corresponding path program 1 times [2024-12-02 08:43:26,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:43:26,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [215912333] [2024-12-02 08:43:26,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:26,323 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:26,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:43:26,325 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:43:26,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2024-12-02 08:43:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:26,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 08:43:26,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:26,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:43:27,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2024-12-02 08:43:27,769 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:43:27,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 35 [2024-12-02 08:43:27,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2024-12-02 08:43:28,128 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:43:28,128 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:28,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2024-12-02 08:43:28,722 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:43:28,722 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:43:28,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [215912333] [2024-12-02 08:43:28,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [215912333] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:28,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:43:28,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 24 [2024-12-02 08:43:28,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304433207] [2024-12-02 08:43:28,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:28,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:43:28,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:43:28,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:43:28,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:43:28,723 INFO L87 Difference]: Start difference. First operand 2914 states and 3409 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:30,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:30,252 INFO L93 Difference]: Finished difference Result 6572 states and 7638 transitions. [2024-12-02 08:43:30,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:43:30,253 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 169 [2024-12-02 08:43:30,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:30,257 INFO L225 Difference]: With dead ends: 6572 [2024-12-02 08:43:30,257 INFO L226 Difference]: Without dead ends: 3661 [2024-12-02 08:43:30,259 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:43:30,259 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 158 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:30,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 776 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:43:30,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3661 states. [2024-12-02 08:43:30,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3661 to 3062. [2024-12-02 08:43:30,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3062 states, 2994 states have (on average 1.1639946559786238) internal successors, (3485), 2996 states have internal predecessors, (3485), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 08:43:30,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 3569 transitions. [2024-12-02 08:43:30,453 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 3569 transitions. Word has length 169 [2024-12-02 08:43:30,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:30,453 INFO L471 AbstractCegarLoop]: Abstraction has 3062 states and 3569 transitions. [2024-12-02 08:43:30,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:30,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 3569 transitions. [2024-12-02 08:43:30,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 08:43:30,455 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:30,455 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:30,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Forceful destruction successful, exit code 0 [2024-12-02 08:43:30,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:30,655 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:30,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:30,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1603193507, now seen corresponding path program 1 times [2024-12-02 08:43:30,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:43:30,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659937] [2024-12-02 08:43:30,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:30,656 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:30,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:43:30,657 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:43:30,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2024-12-02 08:43:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:30,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:43:30,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:31,047 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:43:31,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-12-02 08:43:31,078 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:43:31,078 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:43:31,078 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:43:31,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659937] [2024-12-02 08:43:31,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659937] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:31,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:43:31,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:43:31,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752787292] [2024-12-02 08:43:31,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:31,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:43:31,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:43:31,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:43:31,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:43:31,079 INFO L87 Difference]: Start difference. First operand 3062 states and 3569 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:31,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:31,969 INFO L93 Difference]: Finished difference Result 6271 states and 7298 transitions. [2024-12-02 08:43:31,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:43:31,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 170 [2024-12-02 08:43:31,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:31,973 INFO L225 Difference]: With dead ends: 6271 [2024-12-02 08:43:31,973 INFO L226 Difference]: Without dead ends: 3076 [2024-12-02 08:43:31,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:43:31,975 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 99 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:31,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 768 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:43:31,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3076 states. [2024-12-02 08:43:32,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3076 to 2888. [2024-12-02 08:43:32,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2888 states, 2820 states have (on average 1.1606382978723404) internal successors, (3273), 2822 states have internal predecessors, (3273), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 08:43:32,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 3357 transitions. [2024-12-02 08:43:32,165 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 3357 transitions. Word has length 170 [2024-12-02 08:43:32,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:32,165 INFO L471 AbstractCegarLoop]: Abstraction has 2888 states and 3357 transitions. [2024-12-02 08:43:32,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:32,165 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 3357 transitions. [2024-12-02 08:43:32,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 08:43:32,167 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:32,167 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:32,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Ended with exit code 0 [2024-12-02 08:43:32,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:32,367 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:32,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:32,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1711282589, now seen corresponding path program 1 times [2024-12-02 08:43:32,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:43:32,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022107737] [2024-12-02 08:43:32,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:32,368 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:32,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:43:32,369 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:43:32,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2024-12-02 08:43:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:32,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:43:32,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:32,817 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:43:32,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 17 [2024-12-02 08:43:32,841 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:43:32,841 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:43:32,841 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:43:32,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022107737] [2024-12-02 08:43:32,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022107737] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:32,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:43:32,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:43:32,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58824762] [2024-12-02 08:43:32,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:32,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:43:32,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:43:32,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:43:32,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:43:32,842 INFO L87 Difference]: Start difference. First operand 2888 states and 3357 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:33,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:33,705 INFO L93 Difference]: Finished difference Result 5959 states and 6920 transitions. [2024-12-02 08:43:33,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:43:33,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 170 [2024-12-02 08:43:33,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:33,709 INFO L225 Difference]: With dead ends: 5959 [2024-12-02 08:43:33,709 INFO L226 Difference]: Without dead ends: 3074 [2024-12-02 08:43:33,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:43:33,710 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 77 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:33,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 763 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:43:33,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3074 states. [2024-12-02 08:43:33,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3074 to 2892. [2024-12-02 08:43:33,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2892 states, 2824 states have (on average 1.1604107648725213) internal successors, (3277), 2826 states have internal predecessors, (3277), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 08:43:33,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2892 states to 2892 states and 3361 transitions. [2024-12-02 08:43:33,911 INFO L78 Accepts]: Start accepts. Automaton has 2892 states and 3361 transitions. Word has length 170 [2024-12-02 08:43:33,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:33,912 INFO L471 AbstractCegarLoop]: Abstraction has 2892 states and 3361 transitions. [2024-12-02 08:43:33,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:33,912 INFO L276 IsEmpty]: Start isEmpty. Operand 2892 states and 3361 transitions. [2024-12-02 08:43:33,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 08:43:33,913 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:33,913 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:33,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Ended with exit code 0 [2024-12-02 08:43:34,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:34,113 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:34,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:34,114 INFO L85 PathProgramCache]: Analyzing trace with hash 901935963, now seen corresponding path program 1 times [2024-12-02 08:43:34,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:43:34,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114976905] [2024-12-02 08:43:34,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:34,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:34,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:43:34,116 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:43:34,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2024-12-02 08:43:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:34,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 08:43:34,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:34,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 08:43:34,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2024-12-02 08:43:34,586 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:43:34,586 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:43:34,586 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:43:34,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114976905] [2024-12-02 08:43:34,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [114976905] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:34,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:43:34,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:43:34,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119920270] [2024-12-02 08:43:34,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:34,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:43:34,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:43:34,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:43:34,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:43:34,587 INFO L87 Difference]: Start difference. First operand 2892 states and 3361 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:35,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:35,240 INFO L93 Difference]: Finished difference Result 3434 states and 4109 transitions. [2024-12-02 08:43:35,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:43:35,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 170 [2024-12-02 08:43:35,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:35,244 INFO L225 Difference]: With dead ends: 3434 [2024-12-02 08:43:35,244 INFO L226 Difference]: Without dead ends: 3432 [2024-12-02 08:43:35,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:43:35,245 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 120 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 2122 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:35,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 2122 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:43:35,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2024-12-02 08:43:35,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 2892. [2024-12-02 08:43:35,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2892 states, 2824 states have (on average 1.1604107648725213) internal successors, (3277), 2826 states have internal predecessors, (3277), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 08:43:35,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2892 states to 2892 states and 3361 transitions. [2024-12-02 08:43:35,441 INFO L78 Accepts]: Start accepts. Automaton has 2892 states and 3361 transitions. Word has length 170 [2024-12-02 08:43:35,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:35,441 INFO L471 AbstractCegarLoop]: Abstraction has 2892 states and 3361 transitions. [2024-12-02 08:43:35,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:35,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2892 states and 3361 transitions. [2024-12-02 08:43:35,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 08:43:35,443 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:35,443 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:35,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Ended with exit code 0 [2024-12-02 08:43:35,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:35,643 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:35,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:35,644 INFO L85 PathProgramCache]: Analyzing trace with hash -352286193, now seen corresponding path program 1 times [2024-12-02 08:43:35,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:43:35,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822022217] [2024-12-02 08:43:35,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:35,644 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:35,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:43:35,646 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:43:35,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2024-12-02 08:43:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:35,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 08:43:35,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:36,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:43:37,294 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:43:37,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 37 [2024-12-02 08:43:37,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2024-12-02 08:43:37,450 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:43:37,450 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:38,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:43:38,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 1 [2024-12-02 08:43:38,184 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:43:38,185 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:43:38,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822022217] [2024-12-02 08:43:38,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822022217] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:38,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:43:38,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [21] total 30 [2024-12-02 08:43:38,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029532073] [2024-12-02 08:43:38,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:38,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:43:38,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:43:38,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:43:38,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2024-12-02 08:43:38,186 INFO L87 Difference]: Start difference. First operand 2892 states and 3361 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:39,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:39,903 INFO L93 Difference]: Finished difference Result 6229 states and 7214 transitions. [2024-12-02 08:43:39,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:43:39,903 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 171 [2024-12-02 08:43:39,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:39,907 INFO L225 Difference]: With dead ends: 6229 [2024-12-02 08:43:39,907 INFO L226 Difference]: Without dead ends: 3340 [2024-12-02 08:43:39,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=167, Invalid=1023, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 08:43:39,909 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 293 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:39,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 1036 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 08:43:39,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2024-12-02 08:43:40,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 2910. [2024-12-02 08:43:40,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2910 states, 2842 states have (on average 1.161505981703026) internal successors, (3301), 2844 states have internal predecessors, (3301), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 08:43:40,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2910 states to 2910 states and 3385 transitions. [2024-12-02 08:43:40,115 INFO L78 Accepts]: Start accepts. Automaton has 2910 states and 3385 transitions. Word has length 171 [2024-12-02 08:43:40,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:40,115 INFO L471 AbstractCegarLoop]: Abstraction has 2910 states and 3385 transitions. [2024-12-02 08:43:40,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:40,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2910 states and 3385 transitions. [2024-12-02 08:43:40,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 08:43:40,116 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:40,117 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:40,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Ended with exit code 0 [2024-12-02 08:43:40,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:40,317 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:40,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:40,317 INFO L85 PathProgramCache]: Analyzing trace with hash 586628691, now seen corresponding path program 1 times [2024-12-02 08:43:40,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:43:40,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25331051] [2024-12-02 08:43:40,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:40,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:40,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:43:40,319 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:43:40,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2024-12-02 08:43:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:40,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 08:43:40,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:40,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:43:42,921 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:43:42,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 54 [2024-12-02 08:43:42,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2024-12-02 08:43:43,132 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:43:43,132 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:44,025 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:43:44,025 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:43:44,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25331051] [2024-12-02 08:43:44,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25331051] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:44,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:43:44,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [24] total 34 [2024-12-02 08:43:44,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591562074] [2024-12-02 08:43:44,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:44,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:43:44,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:43:44,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:43:44,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=947, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 08:43:44,026 INFO L87 Difference]: Start difference. First operand 2910 states and 3385 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:46,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:46,136 INFO L93 Difference]: Finished difference Result 6261 states and 7250 transitions. [2024-12-02 08:43:46,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:43:46,137 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 171 [2024-12-02 08:43:46,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:46,141 INFO L225 Difference]: With dead ends: 6261 [2024-12-02 08:43:46,141 INFO L226 Difference]: Without dead ends: 3354 [2024-12-02 08:43:46,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=262, Invalid=1298, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 08:43:46,143 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 235 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:46,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 1360 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 08:43:46,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3354 states. [2024-12-02 08:43:46,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3354 to 2940. [2024-12-02 08:43:46,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2940 states, 2872 states have (on average 1.1598189415041782) internal successors, (3331), 2874 states have internal predecessors, (3331), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 08:43:46,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 3415 transitions. [2024-12-02 08:43:46,339 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 3415 transitions. Word has length 171 [2024-12-02 08:43:46,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:46,339 INFO L471 AbstractCegarLoop]: Abstraction has 2940 states and 3415 transitions. [2024-12-02 08:43:46,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:46,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 3415 transitions. [2024-12-02 08:43:46,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 08:43:46,341 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:46,341 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:46,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Ended with exit code 0 [2024-12-02 08:43:46,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:46,541 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:46,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:46,542 INFO L85 PathProgramCache]: Analyzing trace with hash 970641939, now seen corresponding path program 1 times [2024-12-02 08:43:46,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:43:46,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962537774] [2024-12-02 08:43:46,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:46,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:46,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:43:46,543 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:43:46,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2024-12-02 08:43:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:46,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 08:43:46,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:46,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:43:49,557 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:43:49,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 64 [2024-12-02 08:43:49,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2024-12-02 08:43:49,836 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:43:49,836 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:50,932 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:43:50,933 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:43:50,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962537774] [2024-12-02 08:43:50,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962537774] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:50,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:43:50,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [25] total 36 [2024-12-02 08:43:50,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081422426] [2024-12-02 08:43:50,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:50,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:43:50,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:43:50,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:43:50,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=1056, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 08:43:50,934 INFO L87 Difference]: Start difference. First operand 2940 states and 3415 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:53,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:53,525 INFO L93 Difference]: Finished difference Result 6291 states and 7280 transitions. [2024-12-02 08:43:53,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:43:53,526 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 171 [2024-12-02 08:43:53,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:53,529 INFO L225 Difference]: With dead ends: 6291 [2024-12-02 08:43:53,529 INFO L226 Difference]: Without dead ends: 3354 [2024-12-02 08:43:53,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=318, Invalid=1488, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 08:43:53,531 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 179 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:53,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1517 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 08:43:53,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3354 states. [2024-12-02 08:43:53,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3354 to 2944. [2024-12-02 08:43:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2876 states have (on average 1.159596662030598) internal successors, (3335), 2878 states have internal predecessors, (3335), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 08:43:53,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 3419 transitions. [2024-12-02 08:43:53,730 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 3419 transitions. Word has length 171 [2024-12-02 08:43:53,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:53,730 INFO L471 AbstractCegarLoop]: Abstraction has 2944 states and 3419 transitions. [2024-12-02 08:43:53,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:43:53,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 3419 transitions. [2024-12-02 08:43:53,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 08:43:53,731 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:53,731 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:43:53,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Ended with exit code 0 [2024-12-02 08:43:53,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:53,932 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:53,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:53,932 INFO L85 PathProgramCache]: Analyzing trace with hash 917084819, now seen corresponding path program 1 times [2024-12-02 08:43:53,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:43:53,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296139963] [2024-12-02 08:43:53,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:53,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:43:53,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:43:53,934 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:43:53,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2024-12-02 08:43:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:54,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-02 08:43:54,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:56,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 45 [2024-12-02 08:43:56,599 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:43:56,599 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:43:58,103 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:43:58,103 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:43:58,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296139963] [2024-12-02 08:43:58,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296139963] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:58,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:43:58,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [22] total 33 [2024-12-02 08:43:58,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852075672] [2024-12-02 08:43:58,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:58,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:43:58,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:43:58,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:43:58,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=851, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 08:43:58,104 INFO L87 Difference]: Start difference. First operand 2944 states and 3419 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:01,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:01,550 INFO L93 Difference]: Finished difference Result 6317 states and 7313 transitions. [2024-12-02 08:44:01,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:44:01,551 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 171 [2024-12-02 08:44:01,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:01,555 INFO L225 Difference]: With dead ends: 6317 [2024-12-02 08:44:01,555 INFO L226 Difference]: Without dead ends: 3376 [2024-12-02 08:44:01,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=347, Invalid=1293, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 08:44:01,557 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 157 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:01,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 1752 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 08:44:01,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3376 states. [2024-12-02 08:44:01,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3376 to 3070. [2024-12-02 08:44:01,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 3002 states have (on average 1.1562291805463025) internal successors, (3471), 3004 states have internal predecessors, (3471), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 08:44:01,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 3555 transitions. [2024-12-02 08:44:01,780 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 3555 transitions. Word has length 171 [2024-12-02 08:44:01,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:01,780 INFO L471 AbstractCegarLoop]: Abstraction has 3070 states and 3555 transitions. [2024-12-02 08:44:01,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:01,780 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 3555 transitions. [2024-12-02 08:44:01,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 08:44:01,781 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:01,781 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:01,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Ended with exit code 0 [2024-12-02 08:44:01,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:01,982 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:01,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:01,982 INFO L85 PathProgramCache]: Analyzing trace with hash 107738193, now seen corresponding path program 1 times [2024-12-02 08:44:01,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:01,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302915929] [2024-12-02 08:44:01,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:01,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:01,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:01,984 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:44:01,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2024-12-02 08:44:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:02,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 08:44:02,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:02,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2024-12-02 08:44:03,050 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:03,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 36 [2024-12-02 08:44:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 332 proven. 66 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-12-02 08:44:03,159 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:03,911 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 39 proven. 66 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2024-12-02 08:44:03,911 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:03,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302915929] [2024-12-02 08:44:03,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302915929] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:44:03,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:44:03,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2024-12-02 08:44:03,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322881275] [2024-12-02 08:44:03,911 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:44:03,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 08:44:03,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:03,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 08:44:03,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=703, Unknown=0, NotChecked=0, Total=812 [2024-12-02 08:44:03,913 INFO L87 Difference]: Start difference. First operand 3070 states and 3555 transitions. Second operand has 29 states, 25 states have (on average 5.32) internal successors, (133), 28 states have internal predecessors, (133), 6 states have call successors, (32), 3 states have call predecessors, (32), 6 states have return successors, (32), 3 states have call predecessors, (32), 6 states have call successors, (32) [2024-12-02 08:44:07,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:07,155 INFO L93 Difference]: Finished difference Result 3684 states and 4375 transitions. [2024-12-02 08:44:07,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-12-02 08:44:07,155 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 5.32) internal successors, (133), 28 states have internal predecessors, (133), 6 states have call successors, (32), 3 states have call predecessors, (32), 6 states have return successors, (32), 3 states have call predecessors, (32), 6 states have call successors, (32) Word has length 171 [2024-12-02 08:44:07,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:07,159 INFO L225 Difference]: With dead ends: 3684 [2024-12-02 08:44:07,159 INFO L226 Difference]: Without dead ends: 3682 [2024-12-02 08:44:07,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 313 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=496, Invalid=2584, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 08:44:07,160 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 263 mSDsluCounter, 2802 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 3016 SdHoareTripleChecker+Invalid, 1702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:07,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 3016 Invalid, 1702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 08:44:07,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3682 states. [2024-12-02 08:44:07,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3682 to 3066. [2024-12-02 08:44:07,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 2998 states have (on average 1.156437625083389) internal successors, (3467), 3000 states have internal predecessors, (3467), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-12-02 08:44:07,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 3551 transitions. [2024-12-02 08:44:07,375 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 3551 transitions. Word has length 171 [2024-12-02 08:44:07,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:07,375 INFO L471 AbstractCegarLoop]: Abstraction has 3066 states and 3551 transitions. [2024-12-02 08:44:07,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 5.32) internal successors, (133), 28 states have internal predecessors, (133), 6 states have call successors, (32), 3 states have call predecessors, (32), 6 states have return successors, (32), 3 states have call predecessors, (32), 6 states have call successors, (32) [2024-12-02 08:44:07,375 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 3551 transitions. [2024-12-02 08:44:07,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 08:44:07,376 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:07,376 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:07,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Ended with exit code 0 [2024-12-02 08:44:07,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:07,577 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:07,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:07,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1611836777, now seen corresponding path program 1 times [2024-12-02 08:44:07,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:07,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349789613] [2024-12-02 08:44:07,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:07,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:07,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:07,579 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:44:07,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2024-12-02 08:44:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:07,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 08:44:07,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:07,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:44:09,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 45 [2024-12-02 08:44:09,876 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:44:09,877 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:11,131 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:44:11,131 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:11,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349789613] [2024-12-02 08:44:11,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349789613] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:11,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:11,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [22] total 33 [2024-12-02 08:44:11,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083772755] [2024-12-02 08:44:11,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:11,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:44:11,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:11,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:44:11,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=895, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 08:44:11,132 INFO L87 Difference]: Start difference. First operand 3066 states and 3551 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:13,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:13,715 INFO L93 Difference]: Finished difference Result 5184 states and 6036 transitions. [2024-12-02 08:44:13,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:44:13,715 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 171 [2024-12-02 08:44:13,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:13,719 INFO L225 Difference]: With dead ends: 5184 [2024-12-02 08:44:13,719 INFO L226 Difference]: Without dead ends: 3383 [2024-12-02 08:44:13,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=266, Invalid=1294, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 08:44:13,721 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 283 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:13,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 1350 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 08:44:13,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2024-12-02 08:44:13,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 3081. [2024-12-02 08:44:13,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3081 states, 3007 states have (on average 1.1559694047223146) internal successors, (3476), 3010 states have internal predecessors, (3476), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 08:44:13,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3081 states to 3081 states and 3568 transitions. [2024-12-02 08:44:13,966 INFO L78 Accepts]: Start accepts. Automaton has 3081 states and 3568 transitions. Word has length 171 [2024-12-02 08:44:13,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:13,966 INFO L471 AbstractCegarLoop]: Abstraction has 3081 states and 3568 transitions. [2024-12-02 08:44:13,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 12 states have internal predecessors, (79), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:13,966 INFO L276 IsEmpty]: Start isEmpty. Operand 3081 states and 3568 transitions. [2024-12-02 08:44:13,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-12-02 08:44:13,968 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:13,968 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:13,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Forceful destruction successful, exit code 0 [2024-12-02 08:44:14,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:14,168 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:14,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:14,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1976069363, now seen corresponding path program 1 times [2024-12-02 08:44:14,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:14,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588855640] [2024-12-02 08:44:14,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:14,169 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:14,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:14,170 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:44:14,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2024-12-02 08:44:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:14,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 08:44:14,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:14,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:44:15,767 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:15,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 36 [2024-12-02 08:44:15,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2024-12-02 08:44:15,936 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 371 proven. 48 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-12-02 08:44:15,936 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:16,294 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:44:16,294 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:16,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588855640] [2024-12-02 08:44:16,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588855640] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:16,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:16,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [18] total 22 [2024-12-02 08:44:16,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996267332] [2024-12-02 08:44:16,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:16,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:44:16,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:16,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:44:16,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:44:16,295 INFO L87 Difference]: Start difference. First operand 3081 states and 3568 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:17,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:17,051 INFO L93 Difference]: Finished difference Result 6264 states and 7245 transitions. [2024-12-02 08:44:17,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:44:17,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 173 [2024-12-02 08:44:17,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:17,055 INFO L225 Difference]: With dead ends: 6264 [2024-12-02 08:44:17,055 INFO L226 Difference]: Without dead ends: 3203 [2024-12-02 08:44:17,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:44:17,057 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 67 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:17,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 565 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:44:17,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2024-12-02 08:44:17,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 2739. [2024-12-02 08:44:17,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2739 states, 2665 states have (on average 1.1617260787992496) internal successors, (3096), 2668 states have internal predecessors, (3096), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 08:44:17,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 3188 transitions. [2024-12-02 08:44:17,298 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 3188 transitions. Word has length 173 [2024-12-02 08:44:17,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:17,299 INFO L471 AbstractCegarLoop]: Abstraction has 2739 states and 3188 transitions. [2024-12-02 08:44:17,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:17,299 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 3188 transitions. [2024-12-02 08:44:17,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2024-12-02 08:44:17,301 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:17,301 INFO L218 NwaCegarLoop]: trace histogram [38, 38, 38, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:17,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Ended with exit code 0 [2024-12-02 08:44:17,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:17,502 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:17,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:17,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1772021793, now seen corresponding path program 1 times [2024-12-02 08:44:17,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:17,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947549451] [2024-12-02 08:44:17,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:17,503 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:17,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:17,504 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:44:17,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (84)] Waiting until timeout for monitored process [2024-12-02 08:44:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:17,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 08:44:17,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:18,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2024-12-02 08:44:18,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2878 backedges. 1155 proven. 48 refuted. 0 times theorem prover too weak. 1675 trivial. 0 not checked. [2024-12-02 08:44:18,423 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:18,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2878 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2856 trivial. 0 not checked. [2024-12-02 08:44:18,693 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:18,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947549451] [2024-12-02 08:44:18,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1947549451] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:18,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:18,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-12-02 08:44:18,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188396470] [2024-12-02 08:44:18,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:18,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:44:18,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:18,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:44:18,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:44:18,695 INFO L87 Difference]: Start difference. First operand 2739 states and 3188 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:19,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:19,226 INFO L93 Difference]: Finished difference Result 4686 states and 5449 transitions. [2024-12-02 08:44:19,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:44:19,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 303 [2024-12-02 08:44:19,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:19,230 INFO L225 Difference]: With dead ends: 4686 [2024-12-02 08:44:19,230 INFO L226 Difference]: Without dead ends: 3103 [2024-12-02 08:44:19,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 590 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:44:19,231 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 72 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:19,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 768 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:44:19,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2024-12-02 08:44:19,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 2471. [2024-12-02 08:44:19,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2471 states, 2397 states have (on average 1.1297455152273674) internal successors, (2708), 2400 states have internal predecessors, (2708), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 08:44:19,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 2800 transitions. [2024-12-02 08:44:19,478 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 2800 transitions. Word has length 303 [2024-12-02 08:44:19,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:19,479 INFO L471 AbstractCegarLoop]: Abstraction has 2471 states and 2800 transitions. [2024-12-02 08:44:19,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:19,479 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 2800 transitions. [2024-12-02 08:44:19,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 08:44:19,481 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:19,481 INFO L218 NwaCegarLoop]: trace histogram [38, 38, 38, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:19,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (84)] Ended with exit code 0 [2024-12-02 08:44:19,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:19,681 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:19,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:19,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1174757745, now seen corresponding path program 1 times [2024-12-02 08:44:19,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:19,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952358760] [2024-12-02 08:44:19,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:19,682 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:19,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:19,683 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:44:19,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2024-12-02 08:44:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:20,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-12-02 08:44:20,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:20,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-12-02 08:44:20,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-12-02 08:44:20,817 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:20,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-12-02 08:44:20,884 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:20,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 52 [2024-12-02 08:44:21,754 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:21,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 30 [2024-12-02 08:44:23,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:44:23,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:44:24,945 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:24,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 57 [2024-12-02 08:44:25,193 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:25,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 71 [2024-12-02 08:44:25,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 47 [2024-12-02 08:44:25,994 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:25,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 109 treesize of output 49 [2024-12-02 08:44:26,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1882 proven. 376 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2024-12-02 08:44:26,378 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:27,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2857 trivial. 0 not checked. [2024-12-02 08:44:27,383 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:27,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952358760] [2024-12-02 08:44:27,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952358760] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:27,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:27,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [40] total 45 [2024-12-02 08:44:27,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14933475] [2024-12-02 08:44:27,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:27,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:44:27,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:27,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:44:27,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1775, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 08:44:27,385 INFO L87 Difference]: Start difference. First operand 2471 states and 2800 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:28,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:28,751 INFO L93 Difference]: Finished difference Result 4375 states and 4939 transitions. [2024-12-02 08:44:28,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:44:28,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 304 [2024-12-02 08:44:28,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:28,756 INFO L225 Difference]: With dead ends: 4375 [2024-12-02 08:44:28,756 INFO L226 Difference]: Without dead ends: 2865 [2024-12-02 08:44:28,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=230, Invalid=2026, Unknown=0, NotChecked=0, Total=2256 [2024-12-02 08:44:28,757 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 227 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:28,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 847 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 08:44:28,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2024-12-02 08:44:28,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 2427. [2024-12-02 08:44:28,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 2353 states have (on average 1.1262218444538887) internal successors, (2650), 2356 states have internal predecessors, (2650), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 08:44:28,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 2742 transitions. [2024-12-02 08:44:28,993 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 2742 transitions. Word has length 304 [2024-12-02 08:44:28,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:28,993 INFO L471 AbstractCegarLoop]: Abstraction has 2427 states and 2742 transitions. [2024-12-02 08:44:28,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:28,993 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 2742 transitions. [2024-12-02 08:44:28,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 08:44:28,995 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:28,995 INFO L218 NwaCegarLoop]: trace histogram [38, 38, 38, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:29,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Forceful destruction successful, exit code 0 [2024-12-02 08:44:29,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:29,196 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:29,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:29,196 INFO L85 PathProgramCache]: Analyzing trace with hash 724914711, now seen corresponding path program 1 times [2024-12-02 08:44:29,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:29,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836722570] [2024-12-02 08:44:29,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:29,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:29,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:29,199 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:44:29,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (86)] Waiting until timeout for monitored process [2024-12-02 08:44:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:29,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 08:44:29,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:30,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:44:30,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:44:30,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-12-02 08:44:31,287 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:31,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 61 [2024-12-02 08:44:31,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 35 [2024-12-02 08:44:32,011 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:32,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 90 treesize of output 42 [2024-12-02 08:44:32,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1251 proven. 48 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2024-12-02 08:44:32,496 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:33,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2857 trivial. 0 not checked. [2024-12-02 08:44:33,524 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:33,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836722570] [2024-12-02 08:44:33,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836722570] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:33,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:33,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [26] total 33 [2024-12-02 08:44:33,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003109823] [2024-12-02 08:44:33,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:33,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:44:33,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:33,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:44:33,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=895, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 08:44:33,526 INFO L87 Difference]: Start difference. First operand 2427 states and 2742 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:36,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:36,731 INFO L93 Difference]: Finished difference Result 5480 states and 6148 transitions. [2024-12-02 08:44:36,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:44:36,732 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 304 [2024-12-02 08:44:36,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:36,736 INFO L225 Difference]: With dead ends: 5480 [2024-12-02 08:44:36,736 INFO L226 Difference]: Without dead ends: 3073 [2024-12-02 08:44:36,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 574 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=204, Invalid=1128, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 08:44:36,738 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 339 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:36,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 1091 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 08:44:36,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3073 states. [2024-12-02 08:44:36,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3073 to 2380. [2024-12-02 08:44:36,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2380 states, 2306 states have (on average 1.111448395490026) internal successors, (2563), 2309 states have internal predecessors, (2563), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 08:44:36,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 2655 transitions. [2024-12-02 08:44:36,978 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 2655 transitions. Word has length 304 [2024-12-02 08:44:36,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:36,979 INFO L471 AbstractCegarLoop]: Abstraction has 2380 states and 2655 transitions. [2024-12-02 08:44:36,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:36,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 2655 transitions. [2024-12-02 08:44:36,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 08:44:36,981 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:36,981 INFO L218 NwaCegarLoop]: trace histogram [38, 38, 38, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:36,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (86)] Ended with exit code 0 [2024-12-02 08:44:37,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:37,181 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:37,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:37,181 INFO L85 PathProgramCache]: Analyzing trace with hash 302212885, now seen corresponding path program 1 times [2024-12-02 08:44:37,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:37,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827275453] [2024-12-02 08:44:37,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:37,182 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:37,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:37,183 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:44:37,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2024-12-02 08:44:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:38,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 08:44:38,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:38,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:44:38,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:44:38,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:44:39,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:39,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 57 [2024-12-02 08:44:39,270 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:39,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 80 [2024-12-02 08:44:39,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 35 [2024-12-02 08:44:39,772 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:39,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 97 treesize of output 43 [2024-12-02 08:44:40,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1249 proven. 48 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2024-12-02 08:44:40,270 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:40,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2857 trivial. 0 not checked. [2024-12-02 08:44:40,936 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:40,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827275453] [2024-12-02 08:44:40,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827275453] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:40,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:40,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [25] total 30 [2024-12-02 08:44:40,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089685890] [2024-12-02 08:44:40,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:40,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:44:40,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:40,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:44:40,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=737, Unknown=0, NotChecked=0, Total=870 [2024-12-02 08:44:40,937 INFO L87 Difference]: Start difference. First operand 2380 states and 2655 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:42,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:42,192 INFO L93 Difference]: Finished difference Result 4421 states and 4925 transitions. [2024-12-02 08:44:42,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:44:42,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 304 [2024-12-02 08:44:42,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:42,197 INFO L225 Difference]: With dead ends: 4421 [2024-12-02 08:44:42,197 INFO L226 Difference]: Without dead ends: 2958 [2024-12-02 08:44:42,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=158, Invalid=898, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 08:44:42,198 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 249 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:42,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 875 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:44:42,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2024-12-02 08:44:42,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2380. [2024-12-02 08:44:42,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2380 states, 2306 states have (on average 1.1084128360797918) internal successors, (2556), 2309 states have internal predecessors, (2556), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 08:44:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 2648 transitions. [2024-12-02 08:44:42,442 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 2648 transitions. Word has length 304 [2024-12-02 08:44:42,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:42,442 INFO L471 AbstractCegarLoop]: Abstraction has 2380 states and 2648 transitions. [2024-12-02 08:44:42,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:42,443 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 2648 transitions. [2024-12-02 08:44:42,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 08:44:42,444 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:42,445 INFO L218 NwaCegarLoop]: trace histogram [38, 38, 38, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:42,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Ended with exit code 0 [2024-12-02 08:44:42,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:42,645 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:42,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:42,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1746370133, now seen corresponding path program 1 times [2024-12-02 08:44:42,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:42,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947371633] [2024-12-02 08:44:42,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:42,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:42,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:42,647 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:44:42,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2024-12-02 08:44:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:43,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 08:44:43,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:43,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:44:43,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:44:43,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:44:44,607 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:44,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 56 [2024-12-02 08:44:44,766 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:44,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 79 [2024-12-02 08:44:45,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2024-12-02 08:44:45,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:45,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 96 treesize of output 42 [2024-12-02 08:44:45,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1249 proven. 48 refuted. 0 times theorem prover too weak. 1584 trivial. 0 not checked. [2024-12-02 08:44:45,809 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:46,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2857 trivial. 0 not checked. [2024-12-02 08:44:46,498 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:46,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947371633] [2024-12-02 08:44:46,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947371633] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:46,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:46,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [25] total 30 [2024-12-02 08:44:46,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857462891] [2024-12-02 08:44:46,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:46,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:44:46,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:46,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:44:46,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=737, Unknown=0, NotChecked=0, Total=870 [2024-12-02 08:44:46,500 INFO L87 Difference]: Start difference. First operand 2380 states and 2648 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:47,726 INFO L93 Difference]: Finished difference Result 4374 states and 4842 transitions. [2024-12-02 08:44:47,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:44:47,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 304 [2024-12-02 08:44:47,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:47,730 INFO L225 Difference]: With dead ends: 4374 [2024-12-02 08:44:47,730 INFO L226 Difference]: Without dead ends: 2911 [2024-12-02 08:44:47,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=158, Invalid=898, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 08:44:47,732 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 234 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:47,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 731 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:44:47,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2024-12-02 08:44:47,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2318. [2024-12-02 08:44:47,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2244 states have (on average 1.1056149732620322) internal successors, (2481), 2247 states have internal predecessors, (2481), 46 states have call successors, (46), 27 states have call predecessors, (46), 27 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-12-02 08:44:47,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2573 transitions. [2024-12-02 08:44:47,967 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2573 transitions. Word has length 304 [2024-12-02 08:44:47,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:47,967 INFO L471 AbstractCegarLoop]: Abstraction has 2318 states and 2573 transitions. [2024-12-02 08:44:47,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:47,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2573 transitions. [2024-12-02 08:44:47,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-12-02 08:44:47,970 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:47,970 INFO L218 NwaCegarLoop]: trace histogram [38, 38, 38, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:47,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (88)] Forceful destruction successful, exit code 0 [2024-12-02 08:44:48,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:48,170 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:48,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:48,171 INFO L85 PathProgramCache]: Analyzing trace with hash 2101795281, now seen corresponding path program 1 times [2024-12-02 08:44:48,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:44:48,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32659942] [2024-12-02 08:44:48,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:48,171 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:48,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:44:48,173 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:44:48,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (89)] Waiting until timeout for monitored process [2024-12-02 08:44:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:49,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-02 08:44:49,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:49,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:44:49,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-12-02 08:44:49,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-12-02 08:44:50,939 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:50,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 81 [2024-12-02 08:44:51,198 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:51,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 123 treesize of output 95 [2024-12-02 08:44:51,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 35 [2024-12-02 08:44:52,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:44:52,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 141 treesize of output 63 [2024-12-02 08:44:53,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1251 proven. 48 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2024-12-02 08:44:53,875 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:55,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2859 trivial. 0 not checked. [2024-12-02 08:44:55,561 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:44:55,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32659942] [2024-12-02 08:44:55,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32659942] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:55,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:55,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [34] total 44 [2024-12-02 08:44:55,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600442646] [2024-12-02 08:44:55,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:55,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:44:55,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:44:55,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:44:55,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1691, Unknown=0, NotChecked=0, Total=1892 [2024-12-02 08:44:55,563 INFO L87 Difference]: Start difference. First operand 2318 states and 2573 transitions. Second operand has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:58,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:58,734 INFO L93 Difference]: Finished difference Result 4265 states and 4705 transitions. [2024-12-02 08:44:58,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:44:58,735 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 306 [2024-12-02 08:44:58,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:58,737 INFO L225 Difference]: With dead ends: 4265 [2024-12-02 08:44:58,737 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 08:44:58,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 620 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=264, Invalid=2492, Unknown=0, NotChecked=0, Total=2756 [2024-12-02 08:44:58,738 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 182 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:58,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 1793 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 08:44:58,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 08:44:58,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 08:44:58,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:44:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 08:44:58,740 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 306 [2024-12-02 08:44:58,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:58,740 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 08:44:58,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:44:58,740 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 08:44:58,740 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 08:44:58,742 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:44:58,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (89)] Ended with exit code 0 [2024-12-02 08:44:58,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7550446a-e5c1-44ba-a3c0-b22db0676ac7/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:44:58,945 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:58,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.