./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.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_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/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_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/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_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/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 ee043a380462a1c76ab3130ca5e702431f3ce27542f408d77a3f5f81e3836d71 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:41:11,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:41:11,541 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:41:11,545 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:41:11,546 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:41:11,567 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:41:11,568 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:41:11,568 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:41:11,568 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:41:11,568 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:41:11,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:41:11,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:41:11,569 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:41:11,569 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:41:11,569 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:41:11,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:41:11,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:41:11,570 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:41:11,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:41:11,570 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:41:11,570 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:41:11,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:41:11,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:41:11,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:41:11,570 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:41:11,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:41:11,570 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:41:11,570 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:41:11,571 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:41:11,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:41:11,571 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:41:11,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:41:11,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:41:11,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:41:11,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:41:11,571 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:41:11,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:41:11,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:41:11,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:41:11,572 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:41:11,572 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:41:11,572 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:41:11,572 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:41:11,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:41:11,572 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:41:11,572 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:41:11,572 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:41:11,573 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:41:11,573 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_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/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 -> ee043a380462a1c76ab3130ca5e702431f3ce27542f408d77a3f5f81e3836d71 [2024-12-02 11:41:11,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:41:11,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:41:11,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:41:11,787 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:41:11,787 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:41:11,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i [2024-12-02 11:41:14,458 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/data/95b1714cc/4c0c5f721f70441a8e547b88406a9f62/FLAG9778f5053 [2024-12-02 11:41:14,629 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:41:14,629 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i [2024-12-02 11:41:14,637 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/data/95b1714cc/4c0c5f721f70441a8e547b88406a9f62/FLAG9778f5053 [2024-12-02 11:41:14,651 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/data/95b1714cc/4c0c5f721f70441a8e547b88406a9f62 [2024-12-02 11:41:14,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:41:14,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:41:14,656 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:41:14,656 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:41:14,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:41:14,661 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f0e3c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14, skipping insertion in model container [2024-12-02 11:41:14,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,678 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:41:14,806 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_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i[916,929] [2024-12-02 11:41:14,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:41:14,876 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:41:14,887 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_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i[916,929] [2024-12-02 11:41:14,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:41:14,942 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:41:14,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14 WrapperNode [2024-12-02 11:41:14,942 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:41:14,943 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:41:14,943 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:41:14,943 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:41:14,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:14,990 INFO L138 Inliner]: procedures = 29, calls = 169, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 530 [2024-12-02 11:41:14,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:41:14,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:41:14,991 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:41:14,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:41:15,000 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:15,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:15,004 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:15,024 INFO L175 MemorySlicer]: Split 134 memory accesses to 8 slices as follows [2, 16, 11, 54, 3, 4, 10, 34]. 40 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 2, 2, 4, 1, 1, 2, 4]. The 19 writes are split as follows [0, 2, 2, 6, 1, 1, 2, 5]. [2024-12-02 11:41:15,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:15,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:15,044 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:15,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:15,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:15,053 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:15,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:15,058 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:41:15,059 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:41:15,059 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:41:15,059 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:41:15,060 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (1/1) ... [2024-12-02 11:41:15,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:41:15,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:41:15,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:41:15,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:41:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:41:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 11:41:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 11:41:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-12-02 11:41:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-12-02 11:41:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-12-02 11:41:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-12-02 11:41:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-12-02 11:41:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-12-02 11:41:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 11:41:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 11:41:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 11:41:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 11:41:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 11:41:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 11:41:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 11:41:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 11:41:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-12-02 11:41:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-12-02 11:41:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-12-02 11:41:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-12-02 11:41:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-12-02 11:41:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-12-02 11:41:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-12-02 11:41:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-12-02 11:41:15,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 11:41:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 11:41:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 11:41:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 11:41:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 11:41:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 11:41:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 11:41:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 11:41:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-12-02 11:41:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-12-02 11:41:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-12-02 11:41:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-12-02 11:41:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-12-02 11:41:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-12-02 11:41:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-12-02 11:41:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-12-02 11:41:15,104 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:41:15,105 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:41:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:41:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:41:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:41:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 11:41:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 11:41:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 11:41:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 11:41:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 11:41:15,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:41:15,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:41:15,234 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:41:15,236 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:41:15,667 INFO L? ?]: Removed 122 outVars from TransFormulas that were not future-live. [2024-12-02 11:41:15,667 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:41:15,678 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:41:15,678 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:41:15,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:41:15 BoogieIcfgContainer [2024-12-02 11:41:15,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:41:15,680 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:41:15,681 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:41:15,685 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:41:15,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:41:14" (1/3) ... [2024-12-02 11:41:15,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8603e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:41:15, skipping insertion in model container [2024-12-02 11:41:15,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:14" (2/3) ... [2024-12-02 11:41:15,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8603e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:41:15, skipping insertion in model container [2024-12-02 11:41:15,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:41:15" (3/3) ... [2024-12-02 11:41:15,687 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-88.i [2024-12-02 11:41:15,701 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:41:15,703 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-88.i that has 2 procedures, 119 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:41:15,758 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:41:15,768 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;@21ca02ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:41:15,768 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:41:15,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 99 states have (on average 1.4242424242424243) internal successors, (141), 100 states have internal predecessors, (141), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 11:41:15,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 11:41:15,780 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:15,780 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:15,781 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:15,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:15,785 INFO L85 PathProgramCache]: Analyzing trace with hash -918837053, now seen corresponding path program 1 times [2024-12-02 11:41:15,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:15,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584743408] [2024-12-02 11:41:15,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:15,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:16,060 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 11:41:16,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:16,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584743408] [2024-12-02 11:41:16,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584743408] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:41:16,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070953260] [2024-12-02 11:41:16,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:16,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:41:16,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:41:16,065 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:41:16,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:41:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:16,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:41:16,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:16,331 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 11:41:16,331 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:41:16,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070953260] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:16,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:41:16,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 11:41:16,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106204720] [2024-12-02 11:41:16,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:16,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:41:16,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:16,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:41:16,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:41:16,352 INFO L87 Difference]: Start difference. First operand has 119 states, 99 states have (on average 1.4242424242424243) internal successors, (141), 100 states have internal predecessors, (141), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:16,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:16,378 INFO L93 Difference]: Finished difference Result 231 states and 361 transitions. [2024-12-02 11:41:16,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:41:16,379 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-12-02 11:41:16,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:16,384 INFO L225 Difference]: With dead ends: 231 [2024-12-02 11:41:16,385 INFO L226 Difference]: Without dead ends: 115 [2024-12-02 11:41:16,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 144 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 11:41:16,389 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 11:41:16,390 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 11:41:16,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-12-02 11:41:16,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-12-02 11:41:16,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 96 states have (on average 1.3958333333333333) internal successors, (134), 96 states have internal predecessors, (134), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 11:41:16,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2024-12-02 11:41:16,424 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 143 [2024-12-02 11:41:16,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:16,424 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2024-12-02 11:41:16,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:16,424 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2024-12-02 11:41:16,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 11:41:16,427 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:16,427 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:16,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:41:16,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 11:41:16,628 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:16,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:16,629 INFO L85 PathProgramCache]: Analyzing trace with hash -2048209707, now seen corresponding path program 1 times [2024-12-02 11:41:16,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:16,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831475856] [2024-12-02 11:41:16,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:16,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:16,934 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:16,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:16,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831475856] [2024-12-02 11:41:16,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831475856] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:16,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:16,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:41:16,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324170891] [2024-12-02 11:41:16,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:16,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:41:16,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:16,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:41:16,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:16,937 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:16,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:16,987 INFO L93 Difference]: Finished difference Result 230 states and 337 transitions. [2024-12-02 11:41:16,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:41:16,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-12-02 11:41:16,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:16,989 INFO L225 Difference]: With dead ends: 230 [2024-12-02 11:41:16,989 INFO L226 Difference]: Without dead ends: 118 [2024-12-02 11:41:16,990 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 11:41:16,991 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 1 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:16,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 484 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:16,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-12-02 11:41:17,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-12-02 11:41:17,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 98 states have (on average 1.3877551020408163) internal successors, (136), 98 states have internal predecessors, (136), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 11:41:17,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 170 transitions. [2024-12-02 11:41:17,001 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 170 transitions. Word has length 143 [2024-12-02 11:41:17,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:17,003 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 170 transitions. [2024-12-02 11:41:17,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:17,003 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 170 transitions. [2024-12-02 11:41:17,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 11:41:17,005 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:17,005 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:17,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:41:17,005 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:17,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:17,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1368151337, now seen corresponding path program 1 times [2024-12-02 11:41:17,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:17,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990933100] [2024-12-02 11:41:17,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:17,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:17,191 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:17,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:17,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990933100] [2024-12-02 11:41:17,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990933100] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:17,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:17,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:41:17,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826006184] [2024-12-02 11:41:17,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:17,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:41:17,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:17,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:41:17,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:17,194 INFO L87 Difference]: Start difference. First operand 117 states and 170 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:17,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:17,225 INFO L93 Difference]: Finished difference Result 234 states and 341 transitions. [2024-12-02 11:41:17,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:41:17,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-12-02 11:41:17,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:17,228 INFO L225 Difference]: With dead ends: 234 [2024-12-02 11:41:17,228 INFO L226 Difference]: Without dead ends: 120 [2024-12-02 11:41:17,228 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 11:41:17,229 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 1 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:17,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 485 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:17,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-12-02 11:41:17,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2024-12-02 11:41:17,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 100 states have (on average 1.38) internal successors, (138), 100 states have internal predecessors, (138), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 11:41:17,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 172 transitions. [2024-12-02 11:41:17,239 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 172 transitions. Word has length 143 [2024-12-02 11:41:17,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:17,239 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 172 transitions. [2024-12-02 11:41:17,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:17,240 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 172 transitions. [2024-12-02 11:41:17,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 11:41:17,242 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:17,242 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:17,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:41:17,242 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:17,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:17,243 INFO L85 PathProgramCache]: Analyzing trace with hash 406856025, now seen corresponding path program 1 times [2024-12-02 11:41:17,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:17,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000629648] [2024-12-02 11:41:17,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:17,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:17,432 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:17,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:17,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000629648] [2024-12-02 11:41:17,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000629648] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:17,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:17,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:41:17,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962770007] [2024-12-02 11:41:17,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:17,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:41:17,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:17,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:41:17,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:17,434 INFO L87 Difference]: Start difference. First operand 119 states and 172 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:17,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:17,467 INFO L93 Difference]: Finished difference Result 238 states and 345 transitions. [2024-12-02 11:41:17,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:41:17,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-12-02 11:41:17,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:17,469 INFO L225 Difference]: With dead ends: 238 [2024-12-02 11:41:17,469 INFO L226 Difference]: Without dead ends: 122 [2024-12-02 11:41:17,470 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 11:41:17,471 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 1 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:17,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 487 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:17,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-12-02 11:41:17,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2024-12-02 11:41:17,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 102 states have (on average 1.3725490196078431) internal successors, (140), 102 states have internal predecessors, (140), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 11:41:17,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 174 transitions. [2024-12-02 11:41:17,479 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 174 transitions. Word has length 143 [2024-12-02 11:41:17,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:17,480 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 174 transitions. [2024-12-02 11:41:17,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:17,480 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 174 transitions. [2024-12-02 11:41:17,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 11:41:17,482 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:17,482 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:17,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:41:17,483 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:17,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:17,483 INFO L85 PathProgramCache]: Analyzing trace with hash 408703067, now seen corresponding path program 1 times [2024-12-02 11:41:17,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:17,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990988229] [2024-12-02 11:41:17,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:17,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:18,316 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:18,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:18,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990988229] [2024-12-02 11:41:18,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990988229] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:18,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:18,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:41:18,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49624807] [2024-12-02 11:41:18,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:18,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:41:18,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:18,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:41:18,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:41:18,318 INFO L87 Difference]: Start difference. First operand 121 states and 174 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:18,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:18,474 INFO L93 Difference]: Finished difference Result 266 states and 382 transitions. [2024-12-02 11:41:18,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:41:18,474 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-12-02 11:41:18,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:18,476 INFO L225 Difference]: With dead ends: 266 [2024-12-02 11:41:18,476 INFO L226 Difference]: Without dead ends: 148 [2024-12-02 11:41:18,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 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 11:41:18,477 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 108 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:18,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 571 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:18,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-12-02 11:41:18,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2024-12-02 11:41:18,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 120 states have (on average 1.3416666666666666) internal successors, (161), 121 states have internal predecessors, (161), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 11:41:18,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 209 transitions. [2024-12-02 11:41:18,490 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 209 transitions. Word has length 143 [2024-12-02 11:41:18,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:18,490 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 209 transitions. [2024-12-02 11:41:18,490 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:18,490 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 209 transitions. [2024-12-02 11:41:18,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 11:41:18,492 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:18,492 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:18,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:41:18,492 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:18,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:18,493 INFO L85 PathProgramCache]: Analyzing trace with hash 639395789, now seen corresponding path program 1 times [2024-12-02 11:41:18,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:18,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092883113] [2024-12-02 11:41:18,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:18,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:18,767 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 11:41:18,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:18,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092883113] [2024-12-02 11:41:18,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092883113] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:41:18,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074869046] [2024-12-02 11:41:18,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:18,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:41:18,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:41:18,770 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:41:18,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:41:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:18,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:41:19,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:19,041 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:19,041 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:41:19,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074869046] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:19,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:41:19,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-12-02 11:41:19,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252966965] [2024-12-02 11:41:19,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:19,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:41:19,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:19,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:41:19,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:41:19,042 INFO L87 Difference]: Start difference. First operand 147 states and 209 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:19,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:19,078 INFO L93 Difference]: Finished difference Result 274 states and 389 transitions. [2024-12-02 11:41:19,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:41:19,079 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-12-02 11:41:19,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:19,081 INFO L225 Difference]: With dead ends: 274 [2024-12-02 11:41:19,081 INFO L226 Difference]: Without dead ends: 150 [2024-12-02 11:41:19,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 146 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 11:41:19,083 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 11:41:19,083 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 11:41:19,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-12-02 11:41:19,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-12-02 11:41:19,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 123 states have (on average 1.3333333333333333) internal successors, (164), 124 states have internal predecessors, (164), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 11:41:19,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 212 transitions. [2024-12-02 11:41:19,093 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 212 transitions. Word has length 145 [2024-12-02 11:41:19,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:19,093 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 212 transitions. [2024-12-02 11:41:19,093 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:19,093 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 212 transitions. [2024-12-02 11:41:19,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 11:41:19,095 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:19,095 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:19,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 11:41:19,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-12-02 11:41:19,295 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:19,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:19,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1909797871, now seen corresponding path program 1 times [2024-12-02 11:41:19,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:19,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324690964] [2024-12-02 11:41:19,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:19,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:19,826 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:19,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:19,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324690964] [2024-12-02 11:41:19,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324690964] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:19,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:19,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:41:19,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613206164] [2024-12-02 11:41:19,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:19,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:41:19,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:19,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:41:19,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:41:19,828 INFO L87 Difference]: Start difference. First operand 150 states and 212 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:19,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:19,987 INFO L93 Difference]: Finished difference Result 278 states and 392 transitions. [2024-12-02 11:41:19,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:41:19,988 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 146 [2024-12-02 11:41:19,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:19,990 INFO L225 Difference]: With dead ends: 278 [2024-12-02 11:41:19,990 INFO L226 Difference]: Without dead ends: 151 [2024-12-02 11:41:19,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:41:19,991 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 103 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:19,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 731 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:19,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-12-02 11:41:19,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 148. [2024-12-02 11:41:20,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 121 states have (on average 1.3305785123966942) internal successors, (161), 122 states have internal predecessors, (161), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-12-02 11:41:20,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 209 transitions. [2024-12-02 11:41:20,001 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 209 transitions. Word has length 146 [2024-12-02 11:41:20,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:20,002 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 209 transitions. [2024-12-02 11:41:20,002 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:20,002 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 209 transitions. [2024-12-02 11:41:20,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 11:41:20,003 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:20,003 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:20,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:41:20,004 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:20,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:20,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1656837134, now seen corresponding path program 1 times [2024-12-02 11:41:20,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:20,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838945971] [2024-12-02 11:41:20,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:20,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:20,455 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:20,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:20,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838945971] [2024-12-02 11:41:20,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838945971] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:20,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:20,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:41:20,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547857248] [2024-12-02 11:41:20,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:20,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:41:20,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:20,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:41:20,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:20,457 INFO L87 Difference]: Start difference. First operand 148 states and 209 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:20,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:20,652 INFO L93 Difference]: Finished difference Result 316 states and 447 transitions. [2024-12-02 11:41:20,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:41:20,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 147 [2024-12-02 11:41:20,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:20,654 INFO L225 Difference]: With dead ends: 316 [2024-12-02 11:41:20,654 INFO L226 Difference]: Without dead ends: 191 [2024-12-02 11:41:20,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:41:20,654 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 86 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:20,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 450 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:41:20,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-12-02 11:41:20,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 176. [2024-12-02 11:41:20,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 138 states have (on average 1.289855072463768) internal successors, (178), 138 states have internal predecessors, (178), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 11:41:20,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 246 transitions. [2024-12-02 11:41:20,668 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 246 transitions. Word has length 147 [2024-12-02 11:41:20,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:20,668 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 246 transitions. [2024-12-02 11:41:20,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:20,668 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 246 transitions. [2024-12-02 11:41:20,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 11:41:20,669 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:20,669 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:20,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:41:20,670 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:20,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:20,670 INFO L85 PathProgramCache]: Analyzing trace with hash -106459473, now seen corresponding path program 1 times [2024-12-02 11:41:20,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:20,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971196532] [2024-12-02 11:41:20,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:20,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:20,764 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:20,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:20,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971196532] [2024-12-02 11:41:20,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971196532] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:20,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:20,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:41:20,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17022799] [2024-12-02 11:41:20,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:20,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:41:20,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:20,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:41:20,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:41:20,766 INFO L87 Difference]: Start difference. First operand 176 states and 246 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:20,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:20,800 INFO L93 Difference]: Finished difference Result 372 states and 523 transitions. [2024-12-02 11:41:20,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:41:20,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 149 [2024-12-02 11:41:20,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:20,802 INFO L225 Difference]: With dead ends: 372 [2024-12-02 11:41:20,803 INFO L226 Difference]: Without dead ends: 247 [2024-12-02 11:41:20,803 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 11:41:20,804 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 85 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:20,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 313 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:20,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-12-02 11:41:20,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 198. [2024-12-02 11:41:20,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 160 states have (on average 1.325) internal successors, (212), 160 states have internal predecessors, (212), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 11:41:20,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 280 transitions. [2024-12-02 11:41:20,819 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 280 transitions. Word has length 149 [2024-12-02 11:41:20,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:20,819 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 280 transitions. [2024-12-02 11:41:20,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:20,820 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 280 transitions. [2024-12-02 11:41:20,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 11:41:20,821 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:20,821 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:20,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:41:20,821 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:20,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:20,821 INFO L85 PathProgramCache]: Analyzing trace with hash 2087024059, now seen corresponding path program 1 times [2024-12-02 11:41:20,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:20,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007065988] [2024-12-02 11:41:20,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:20,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:20,900 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:20,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:20,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007065988] [2024-12-02 11:41:20,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007065988] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:20,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:20,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:41:20,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187216920] [2024-12-02 11:41:20,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:20,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:41:20,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:20,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:41:20,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:41:20,901 INFO L87 Difference]: Start difference. First operand 198 states and 280 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:20,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:20,938 INFO L93 Difference]: Finished difference Result 417 states and 592 transitions. [2024-12-02 11:41:20,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:41:20,939 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-12-02 11:41:20,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:20,940 INFO L225 Difference]: With dead ends: 417 [2024-12-02 11:41:20,940 INFO L226 Difference]: Without dead ends: 270 [2024-12-02 11:41:20,941 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 11:41:20,941 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 82 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:20,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 316 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:20,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-12-02 11:41:20,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 221. [2024-12-02 11:41:20,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 183 states have (on average 1.349726775956284) internal successors, (247), 183 states have internal predecessors, (247), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 11:41:20,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 315 transitions. [2024-12-02 11:41:20,956 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 315 transitions. Word has length 150 [2024-12-02 11:41:20,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:20,956 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 315 transitions. [2024-12-02 11:41:20,957 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:20,957 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 315 transitions. [2024-12-02 11:41:20,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 11:41:20,958 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:20,958 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:20,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:41:20,958 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:20,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:20,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1164516556, now seen corresponding path program 1 times [2024-12-02 11:41:20,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:20,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739000022] [2024-12-02 11:41:20,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:20,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:21,293 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:21,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:21,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739000022] [2024-12-02 11:41:21,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739000022] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:21,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:21,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:41:21,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273480351] [2024-12-02 11:41:21,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:21,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:41:21,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:21,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:41:21,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:41:21,295 INFO L87 Difference]: Start difference. First operand 221 states and 315 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:21,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:21,515 INFO L93 Difference]: Finished difference Result 406 states and 583 transitions. [2024-12-02 11:41:21,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:41:21,516 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 151 [2024-12-02 11:41:21,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:21,517 INFO L225 Difference]: With dead ends: 406 [2024-12-02 11:41:21,517 INFO L226 Difference]: Without dead ends: 236 [2024-12-02 11:41:21,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:41:21,518 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 85 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:21,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 704 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:41:21,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-12-02 11:41:21,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 224. [2024-12-02 11:41:21,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 186 states have (on average 1.3440860215053763) internal successors, (250), 186 states have internal predecessors, (250), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 11:41:21,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 318 transitions. [2024-12-02 11:41:21,535 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 318 transitions. Word has length 151 [2024-12-02 11:41:21,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:21,535 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 318 transitions. [2024-12-02 11:41:21,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:21,536 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 318 transitions. [2024-12-02 11:41:21,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 11:41:21,537 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:21,537 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:21,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:41:21,537 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:21,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:21,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1558883342, now seen corresponding path program 1 times [2024-12-02 11:41:21,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:21,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184314456] [2024-12-02 11:41:21,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:21,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:21,972 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:21,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:21,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184314456] [2024-12-02 11:41:21,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184314456] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:21,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:21,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:41:21,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642407123] [2024-12-02 11:41:21,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:21,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:41:21,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:21,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:41:21,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:41:21,974 INFO L87 Difference]: Start difference. First operand 224 states and 318 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:22,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:22,081 INFO L93 Difference]: Finished difference Result 508 states and 721 transitions. [2024-12-02 11:41:22,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:41:22,082 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 151 [2024-12-02 11:41:22,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:22,083 INFO L225 Difference]: With dead ends: 508 [2024-12-02 11:41:22,083 INFO L226 Difference]: Without dead ends: 338 [2024-12-02 11:41:22,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 11:41:22,085 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 148 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:22,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 603 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:22,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-12-02 11:41:22,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 335. [2024-12-02 11:41:22,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 293 states have (on average 1.3686006825938566) internal successors, (401), 294 states have internal predecessors, (401), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 11:41:22,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 473 transitions. [2024-12-02 11:41:22,105 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 473 transitions. Word has length 151 [2024-12-02 11:41:22,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:22,105 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 473 transitions. [2024-12-02 11:41:22,105 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:22,105 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 473 transitions. [2024-12-02 11:41:22,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:41:22,107 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:22,107 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:22,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:41:22,108 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:22,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:22,108 INFO L85 PathProgramCache]: Analyzing trace with hash 785571257, now seen corresponding path program 1 times [2024-12-02 11:41:22,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:22,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953906364] [2024-12-02 11:41:22,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:22,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:23,073 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:23,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:23,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953906364] [2024-12-02 11:41:23,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953906364] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:23,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:23,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:41:23,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904486954] [2024-12-02 11:41:23,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:23,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:41:23,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:23,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:41:23,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:41:23,075 INFO L87 Difference]: Start difference. First operand 335 states and 473 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:23,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:23,282 INFO L93 Difference]: Finished difference Result 775 states and 1086 transitions. [2024-12-02 11:41:23,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:41:23,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2024-12-02 11:41:23,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:23,284 INFO L225 Difference]: With dead ends: 775 [2024-12-02 11:41:23,284 INFO L226 Difference]: Without dead ends: 498 [2024-12-02 11:41:23,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:41:23,286 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 101 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:23,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1121 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:23,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-12-02 11:41:23,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 495. [2024-12-02 11:41:23,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 435 states have (on average 1.3402298850574712) internal successors, (583), 438 states have internal predecessors, (583), 51 states have call successors, (51), 8 states have call predecessors, (51), 8 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 11:41:23,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 685 transitions. [2024-12-02 11:41:23,316 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 685 transitions. Word has length 152 [2024-12-02 11:41:23,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:23,317 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 685 transitions. [2024-12-02 11:41:23,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:23,317 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 685 transitions. [2024-12-02 11:41:23,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 11:41:23,318 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:23,319 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:23,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 11:41:23,319 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:23,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:23,319 INFO L85 PathProgramCache]: Analyzing trace with hash -428660984, now seen corresponding path program 1 times [2024-12-02 11:41:23,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:23,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154386442] [2024-12-02 11:41:23,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:23,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:23,764 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:23,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:23,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154386442] [2024-12-02 11:41:23,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154386442] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:23,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:23,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:41:23,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086305755] [2024-12-02 11:41:23,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:23,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:41:23,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:23,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:41:23,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:41:23,766 INFO L87 Difference]: Start difference. First operand 495 states and 685 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:23,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:23,904 INFO L93 Difference]: Finished difference Result 1112 states and 1539 transitions. [2024-12-02 11:41:23,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:41:23,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2024-12-02 11:41:23,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:23,908 INFO L225 Difference]: With dead ends: 1112 [2024-12-02 11:41:23,908 INFO L226 Difference]: Without dead ends: 675 [2024-12-02 11:41:23,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 11:41:23,910 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 95 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:23,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 1002 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:23,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-12-02 11:41:23,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 586. [2024-12-02 11:41:23,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 526 states have (on average 1.355513307984791) internal successors, (713), 529 states have internal predecessors, (713), 51 states have call successors, (51), 8 states have call predecessors, (51), 8 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 11:41:23,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 815 transitions. [2024-12-02 11:41:23,948 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 815 transitions. Word has length 153 [2024-12-02 11:41:23,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:23,948 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 815 transitions. [2024-12-02 11:41:23,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:23,949 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 815 transitions. [2024-12-02 11:41:23,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 11:41:23,950 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:23,950 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:23,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 11:41:23,951 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:23,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:23,951 INFO L85 PathProgramCache]: Analyzing trace with hash 759379828, now seen corresponding path program 1 times [2024-12-02 11:41:23,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:23,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682209802] [2024-12-02 11:41:23,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:23,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:24,033 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:24,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:24,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682209802] [2024-12-02 11:41:24,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682209802] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:24,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:24,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:41:24,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908279506] [2024-12-02 11:41:24,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:24,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:41:24,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:24,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:41:24,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:41:24,034 INFO L87 Difference]: Start difference. First operand 586 states and 815 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:24,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:24,083 INFO L93 Difference]: Finished difference Result 1123 states and 1572 transitions. [2024-12-02 11:41:24,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:41:24,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 154 [2024-12-02 11:41:24,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:24,087 INFO L225 Difference]: With dead ends: 1123 [2024-12-02 11:41:24,087 INFO L226 Difference]: Without dead ends: 595 [2024-12-02 11:41:24,088 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 11:41:24,088 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 0 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 325 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 11:41:24,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 325 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:24,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-12-02 11:41:24,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 595. [2024-12-02 11:41:24,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 535 states have (on average 1.3495327102803738) internal successors, (722), 538 states have internal predecessors, (722), 51 states have call successors, (51), 8 states have call predecessors, (51), 8 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 11:41:24,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 824 transitions. [2024-12-02 11:41:24,126 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 824 transitions. Word has length 154 [2024-12-02 11:41:24,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:24,126 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 824 transitions. [2024-12-02 11:41:24,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:24,126 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 824 transitions. [2024-12-02 11:41:24,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 11:41:24,128 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:24,128 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:24,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:41:24,129 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:24,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:24,129 INFO L85 PathProgramCache]: Analyzing trace with hash -818230971, now seen corresponding path program 1 times [2024-12-02 11:41:24,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:24,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342700271] [2024-12-02 11:41:24,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:24,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:25,132 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:25,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:25,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342700271] [2024-12-02 11:41:25,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342700271] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:25,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:25,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:41:25,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414489617] [2024-12-02 11:41:25,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:25,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:41:25,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:25,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:41:25,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:41:25,134 INFO L87 Difference]: Start difference. First operand 595 states and 824 transitions. Second operand has 7 states, 6 states have (on average 12.0) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:25,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:25,328 INFO L93 Difference]: Finished difference Result 617 states and 847 transitions. [2024-12-02 11:41:25,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:41:25,329 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 154 [2024-12-02 11:41:25,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:25,332 INFO L225 Difference]: With dead ends: 617 [2024-12-02 11:41:25,332 INFO L226 Difference]: Without dead ends: 615 [2024-12-02 11:41:25,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:41:25,333 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 87 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:25,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 1058 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:25,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2024-12-02 11:41:25,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2024-12-02 11:41:25,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 553 states have (on average 1.3381555153707052) internal successors, (740), 556 states have internal predecessors, (740), 51 states have call successors, (51), 10 states have call predecessors, (51), 10 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 11:41:25,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 842 transitions. [2024-12-02 11:41:25,380 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 842 transitions. Word has length 154 [2024-12-02 11:41:25,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:25,381 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 842 transitions. [2024-12-02 11:41:25,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:25,381 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 842 transitions. [2024-12-02 11:41:25,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 11:41:25,383 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:25,383 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:25,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 11:41:25,383 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:25,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:25,384 INFO L85 PathProgramCache]: Analyzing trace with hash -816383929, now seen corresponding path program 1 times [2024-12-02 11:41:25,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:25,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389576594] [2024-12-02 11:41:25,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:25,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:26,476 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 11:41:26,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:26,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389576594] [2024-12-02 11:41:26,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389576594] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:41:26,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467980443] [2024-12-02 11:41:26,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:26,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:41:26,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:41:26,478 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:41:26,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:41:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:26,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 11:41:26,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:26,944 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 27 treesize of output 15 [2024-12-02 11:41:26,975 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 11:41:27,143 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 11:41:27,216 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 11:41:27,338 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:41:27,338 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 31 treesize of output 33 [2024-12-02 11:41:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-12-02 11:41:27,423 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:41:27,691 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 29 treesize of output 21 [2024-12-02 11:41:27,831 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 11:41:27,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467980443] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:41:27,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:41:27,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 22 [2024-12-02 11:41:27,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889677205] [2024-12-02 11:41:27,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:41:27,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 11:41:27,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:27,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 11:41:27,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2024-12-02 11:41:27,833 INFO L87 Difference]: Start difference. First operand 615 states and 842 transitions. Second operand has 22 states, 18 states have (on average 8.833333333333334) internal successors, (159), 22 states have internal predecessors, (159), 10 states have call successors, (51), 3 states have call predecessors, (51), 6 states have return successors, (51), 6 states have call predecessors, (51), 10 states have call successors, (51) [2024-12-02 11:41:29,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:29,333 INFO L93 Difference]: Finished difference Result 1693 states and 2299 transitions. [2024-12-02 11:41:29,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 11:41:29,334 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 8.833333333333334) internal successors, (159), 22 states have internal predecessors, (159), 10 states have call successors, (51), 3 states have call predecessors, (51), 6 states have return successors, (51), 6 states have call predecessors, (51), 10 states have call successors, (51) Word has length 154 [2024-12-02 11:41:29,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:29,340 INFO L225 Difference]: With dead ends: 1693 [2024-12-02 11:41:29,340 INFO L226 Difference]: Without dead ends: 1136 [2024-12-02 11:41:29,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 302 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=321, Invalid=1085, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 11:41:29,342 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 325 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:29,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1545 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 11:41:29,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2024-12-02 11:41:29,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1062. [2024-12-02 11:41:29,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 958 states have (on average 1.3277661795407099) internal successors, (1272), 964 states have internal predecessors, (1272), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 11:41:29,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1438 transitions. [2024-12-02 11:41:29,388 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1438 transitions. Word has length 154 [2024-12-02 11:41:29,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:29,389 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1438 transitions. [2024-12-02 11:41:29,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 8.833333333333334) internal successors, (159), 22 states have internal predecessors, (159), 10 states have call successors, (51), 3 states have call predecessors, (51), 6 states have return successors, (51), 6 states have call predecessors, (51), 10 states have call successors, (51) [2024-12-02 11:41:29,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1438 transitions. [2024-12-02 11:41:29,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 11:41:29,390 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:29,390 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:29,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 11:41:29,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 11:41:29,591 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:29,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:29,591 INFO L85 PathProgramCache]: Analyzing trace with hash -738109405, now seen corresponding path program 1 times [2024-12-02 11:41:29,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:29,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855089205] [2024-12-02 11:41:29,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:29,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:30,027 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:30,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:30,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855089205] [2024-12-02 11:41:30,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855089205] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:30,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:30,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:41:30,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786525676] [2024-12-02 11:41:30,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:30,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:41:30,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:30,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:41:30,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:41:30,028 INFO L87 Difference]: Start difference. First operand 1062 states and 1438 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:30,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:30,175 INFO L93 Difference]: Finished difference Result 1716 states and 2326 transitions. [2024-12-02 11:41:30,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:41:30,176 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 155 [2024-12-02 11:41:30,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:30,181 INFO L225 Difference]: With dead ends: 1716 [2024-12-02 11:41:30,181 INFO L226 Difference]: Without dead ends: 1159 [2024-12-02 11:41:30,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 11:41:30,182 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 160 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:30,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 813 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:30,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-12-02 11:41:30,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1064. [2024-12-02 11:41:30,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 960 states have (on average 1.3270833333333334) internal successors, (1274), 966 states have internal predecessors, (1274), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 11:41:30,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1440 transitions. [2024-12-02 11:41:30,253 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1440 transitions. Word has length 155 [2024-12-02 11:41:30,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:30,254 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1440 transitions. [2024-12-02 11:41:30,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:30,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1440 transitions. [2024-12-02 11:41:30,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 11:41:30,256 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:30,256 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:30,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 11:41:30,256 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:30,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:30,257 INFO L85 PathProgramCache]: Analyzing trace with hash -519254687, now seen corresponding path program 1 times [2024-12-02 11:41:30,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:30,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794325044] [2024-12-02 11:41:30,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:30,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:30,577 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:30,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:30,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794325044] [2024-12-02 11:41:30,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794325044] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:30,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:30,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:41:30,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526253594] [2024-12-02 11:41:30,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:30,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:41:30,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:30,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:41:30,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:41:30,578 INFO L87 Difference]: Start difference. First operand 1064 states and 1440 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:30,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:30,785 INFO L93 Difference]: Finished difference Result 2353 states and 3182 transitions. [2024-12-02 11:41:30,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:41:30,786 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-12-02 11:41:30,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:30,790 INFO L225 Difference]: With dead ends: 2353 [2024-12-02 11:41:30,791 INFO L226 Difference]: Without dead ends: 1351 [2024-12-02 11:41:30,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:41:30,793 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 148 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:30,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1075 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:30,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2024-12-02 11:41:30,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1147. [2024-12-02 11:41:30,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1043 states have (on average 1.3231064237775647) internal successors, (1380), 1049 states have internal predecessors, (1380), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 11:41:30,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1546 transitions. [2024-12-02 11:41:30,858 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1546 transitions. Word has length 155 [2024-12-02 11:41:30,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:30,858 INFO L471 AbstractCegarLoop]: Abstraction has 1147 states and 1546 transitions. [2024-12-02 11:41:30,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:30,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1546 transitions. [2024-12-02 11:41:30,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 11:41:30,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:30,860 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:30,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 11:41:30,861 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:30,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:30,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1730192716, now seen corresponding path program 1 times [2024-12-02 11:41:30,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:30,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743309190] [2024-12-02 11:41:30,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:30,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:31,687 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:31,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:31,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743309190] [2024-12-02 11:41:31,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743309190] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:31,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:31,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:41:31,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030477357] [2024-12-02 11:41:31,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:31,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:41:31,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:31,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:41:31,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:41:31,688 INFO L87 Difference]: Start difference. First operand 1147 states and 1546 transitions. Second operand has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 8 states have internal predecessors, (74), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:32,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:32,340 INFO L93 Difference]: Finished difference Result 2589 states and 3485 transitions. [2024-12-02 11:41:32,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:41:32,341 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 8 states have internal predecessors, (74), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 156 [2024-12-02 11:41:32,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:32,346 INFO L225 Difference]: With dead ends: 2589 [2024-12-02 11:41:32,346 INFO L226 Difference]: Without dead ends: 1587 [2024-12-02 11:41:32,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:41:32,348 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 262 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:32,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 712 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:41:32,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2024-12-02 11:41:32,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1354. [2024-12-02 11:41:32,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1249 states have (on average 1.3290632506004805) internal successors, (1660), 1255 states have internal predecessors, (1660), 83 states have call successors, (83), 21 states have call predecessors, (83), 21 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 11:41:32,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1826 transitions. [2024-12-02 11:41:32,416 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1826 transitions. Word has length 156 [2024-12-02 11:41:32,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:32,416 INFO L471 AbstractCegarLoop]: Abstraction has 1354 states and 1826 transitions. [2024-12-02 11:41:32,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 8 states have internal predecessors, (74), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:32,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1826 transitions. [2024-12-02 11:41:32,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 11:41:32,417 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:32,417 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:32,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 11:41:32,418 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:32,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:32,418 INFO L85 PathProgramCache]: Analyzing trace with hash 302901733, now seen corresponding path program 1 times [2024-12-02 11:41:32,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:32,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852260273] [2024-12-02 11:41:32,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:32,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:32,469 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:32,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:32,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852260273] [2024-12-02 11:41:32,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852260273] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:32,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:32,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:41:32,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131137516] [2024-12-02 11:41:32,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:32,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:41:32,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:32,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:41:32,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:41:32,471 INFO L87 Difference]: Start difference. First operand 1354 states and 1826 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:32,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:32,516 INFO L93 Difference]: Finished difference Result 2550 states and 3463 transitions. [2024-12-02 11:41:32,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:41:32,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 156 [2024-12-02 11:41:32,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:32,520 INFO L225 Difference]: With dead ends: 2550 [2024-12-02 11:41:32,520 INFO L226 Difference]: Without dead ends: 1366 [2024-12-02 11:41:32,521 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 11:41:32,522 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 0 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:32,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 324 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:32,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2024-12-02 11:41:32,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1366. [2024-12-02 11:41:32,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 1261 states have (on average 1.3259318001586042) internal successors, (1672), 1267 states have internal predecessors, (1672), 83 states have call successors, (83), 21 states have call predecessors, (83), 21 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 11:41:32,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1838 transitions. [2024-12-02 11:41:32,565 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1838 transitions. Word has length 156 [2024-12-02 11:41:32,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:32,565 INFO L471 AbstractCegarLoop]: Abstraction has 1366 states and 1838 transitions. [2024-12-02 11:41:32,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:32,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1838 transitions. [2024-12-02 11:41:32,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 11:41:32,566 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:32,566 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:32,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 11:41:32,567 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:32,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:32,567 INFO L85 PathProgramCache]: Analyzing trace with hash 886187214, now seen corresponding path program 1 times [2024-12-02 11:41:32,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:32,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478139872] [2024-12-02 11:41:32,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:32,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:32,782 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:32,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:32,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478139872] [2024-12-02 11:41:32,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478139872] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:32,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:32,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:41:32,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154241217] [2024-12-02 11:41:32,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:32,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:41:32,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:32,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:41:32,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:32,784 INFO L87 Difference]: Start difference. First operand 1366 states and 1838 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:32,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:32,970 INFO L93 Difference]: Finished difference Result 2307 states and 3121 transitions. [2024-12-02 11:41:32,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:41:32,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 156 [2024-12-02 11:41:32,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:32,975 INFO L225 Difference]: With dead ends: 2307 [2024-12-02 11:41:32,975 INFO L226 Difference]: Without dead ends: 1090 [2024-12-02 11:41:32,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:32,977 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 108 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:32,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 395 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:32,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2024-12-02 11:41:33,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1058. [2024-12-02 11:41:33,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 969 states have (on average 1.3188854489164086) internal successors, (1278), 973 states have internal predecessors, (1278), 70 states have call successors, (70), 18 states have call predecessors, (70), 18 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 11:41:33,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1418 transitions. [2024-12-02 11:41:33,010 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1418 transitions. Word has length 156 [2024-12-02 11:41:33,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:33,011 INFO L471 AbstractCegarLoop]: Abstraction has 1058 states and 1418 transitions. [2024-12-02 11:41:33,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:33,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1418 transitions. [2024-12-02 11:41:33,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 11:41:33,012 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:33,012 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:33,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 11:41:33,012 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:33,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:33,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1097533132, now seen corresponding path program 1 times [2024-12-02 11:41:33,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:33,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348086914] [2024-12-02 11:41:33,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:33,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:33,266 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:33,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:33,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348086914] [2024-12-02 11:41:33,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348086914] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:33,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:33,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:41:33,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632831246] [2024-12-02 11:41:33,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:33,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:41:33,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:33,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:41:33,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:41:33,267 INFO L87 Difference]: Start difference. First operand 1058 states and 1418 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:33,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:33,372 INFO L93 Difference]: Finished difference Result 1713 states and 2302 transitions. [2024-12-02 11:41:33,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:41:33,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 156 [2024-12-02 11:41:33,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:33,376 INFO L225 Difference]: With dead ends: 1713 [2024-12-02 11:41:33,376 INFO L226 Difference]: Without dead ends: 1124 [2024-12-02 11:41:33,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 11:41:33,377 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 170 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:33,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 616 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:33,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2024-12-02 11:41:33,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1026. [2024-12-02 11:41:33,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 937 states have (on average 1.3116328708644611) internal successors, (1229), 941 states have internal predecessors, (1229), 70 states have call successors, (70), 18 states have call predecessors, (70), 18 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-12-02 11:41:33,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1369 transitions. [2024-12-02 11:41:33,412 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1369 transitions. Word has length 156 [2024-12-02 11:41:33,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:33,412 INFO L471 AbstractCegarLoop]: Abstraction has 1026 states and 1369 transitions. [2024-12-02 11:41:33,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:33,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1369 transitions. [2024-12-02 11:41:33,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 11:41:33,413 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:33,413 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:33,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 11:41:33,413 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:33,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:33,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1823122110, now seen corresponding path program 1 times [2024-12-02 11:41:33,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:33,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654262769] [2024-12-02 11:41:33,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:33,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:33,808 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:33,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:33,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654262769] [2024-12-02 11:41:33,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654262769] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:33,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:33,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:41:33,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766233139] [2024-12-02 11:41:33,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:33,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:41:33,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:33,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:41:33,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:41:33,809 INFO L87 Difference]: Start difference. First operand 1026 states and 1369 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:34,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:34,230 INFO L93 Difference]: Finished difference Result 2371 states and 3168 transitions. [2024-12-02 11:41:34,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:41:34,230 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 158 [2024-12-02 11:41:34,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:34,234 INFO L225 Difference]: With dead ends: 2371 [2024-12-02 11:41:34,234 INFO L226 Difference]: Without dead ends: 1468 [2024-12-02 11:41:34,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:41:34,235 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 482 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:34,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 878 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:41:34,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2024-12-02 11:41:34,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1289. [2024-12-02 11:41:34,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1176 states have (on average 1.2976190476190477) internal successors, (1526), 1182 states have internal predecessors, (1526), 89 states have call successors, (89), 23 states have call predecessors, (89), 23 states have return successors, (89), 83 states have call predecessors, (89), 89 states have call successors, (89) [2024-12-02 11:41:34,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1704 transitions. [2024-12-02 11:41:34,278 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1704 transitions. Word has length 158 [2024-12-02 11:41:34,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:34,278 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1704 transitions. [2024-12-02 11:41:34,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:34,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1704 transitions. [2024-12-02 11:41:34,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 11:41:34,279 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:34,279 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:34,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 11:41:34,280 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:34,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:34,280 INFO L85 PathProgramCache]: Analyzing trace with hash -242467503, now seen corresponding path program 1 times [2024-12-02 11:41:34,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:34,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823910453] [2024-12-02 11:41:34,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:34,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:41:34,348 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:41:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:41:34,459 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 11:41:34,459 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:41:34,459 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 11:41:34,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 11:41:34,463 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] [2024-12-02 11:41:34,551 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:41:34,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:41:34 BoogieIcfgContainer [2024-12-02 11:41:34,554 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:41:34,555 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:41:34,555 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:41:34,555 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:41:34,556 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:41:15" (3/4) ... [2024-12-02 11:41:34,557 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 11:41:34,558 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:41:34,558 INFO L158 Benchmark]: Toolchain (without parser) took 19903.76ms. Allocated memory was 142.6MB in the beginning and 536.9MB in the end (delta: 394.3MB). Free memory was 116.1MB in the beginning and 234.4MB in the end (delta: -118.3MB). Peak memory consumption was 276.1MB. Max. memory is 16.1GB. [2024-12-02 11:41:34,558 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:41:34,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.85ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 100.3MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:41:34,559 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.40ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 96.7MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:41:34,559 INFO L158 Benchmark]: Boogie Preprocessor took 67.33ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 92.1MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:41:34,559 INFO L158 Benchmark]: RCFGBuilder took 619.22ms. Allocated memory is still 142.6MB. Free memory was 92.1MB in the beginning and 56.6MB in the end (delta: 35.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 11:41:34,559 INFO L158 Benchmark]: TraceAbstraction took 18873.94ms. Allocated memory was 142.6MB in the beginning and 536.9MB in the end (delta: 394.3MB). Free memory was 56.0MB in the beginning and 234.4MB in the end (delta: -178.4MB). Peak memory consumption was 217.4MB. Max. memory is 16.1GB. [2024-12-02 11:41:34,560 INFO L158 Benchmark]: Witness Printer took 2.67ms. Allocated memory is still 536.9MB. Free memory was 234.4MB in the beginning and 234.4MB in the end (delta: 47.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:41:34,561 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.85ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 100.3MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.40ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 96.7MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 67.33ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 92.1MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 619.22ms. Allocated memory is still 142.6MB. Free memory was 92.1MB in the beginning and 56.6MB in the end (delta: 35.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 18873.94ms. Allocated memory was 142.6MB in the beginning and 536.9MB in the end (delta: 394.3MB). Free memory was 56.0MB in the beginning and 234.4MB in the end (delta: -178.4MB). Peak memory consumption was 217.4MB. Max. memory is 16.1GB. * Witness Printer took 2.67ms. Allocated memory is still 536.9MB. Free memory was 234.4MB in the beginning and 234.4MB in the end (delta: 47.4kB). There was no memory consumed. 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 someBinaryFLOATComparisonOperation at line 108, overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of bitwiseOr at line 49, overapproximation of bitwiseOr at line 108. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 1, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 1, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 1, 0 }; [L25-L27] float float_Array_0[2] = { 1000000.5, 4.5 }; [L25-L27] float float_Array_0[2] = { 1000000.5, 4.5 }; [L25-L27] float float_Array_0[2] = { 1000000.5, 4.5 }; [L28-L30] signed char signed_char_Array_0[2][2] = { {100, -1}, {-50, -8} }; [L28-L30] signed char signed_char_Array_0[2][2] = { {100, -1}, {-50, -8} }; [L28-L30] signed char signed_char_Array_0[2][2] = { {100, -1}, {-50, -8} }; [L28-L30] signed char signed_char_Array_0[2][2] = { {100, -1}, {-50, -8} }; [L28-L30] signed char signed_char_Array_0[2][2] = { {100, -1}, {-50, -8} }; [L31-L33] signed long int signed_long_int_Array_0[1] = { 64 }; [L31-L33] signed long int signed_long_int_Array_0[1] = { 64 }; [L34-L36] signed short int signed_short_int_Array_0[1] = { -16 }; [L34-L36] signed short int signed_short_int_Array_0[1] = { -16 }; [L37-L39] unsigned char unsigned_char_Array_0[2] = { 0, 128 }; [L37-L39] unsigned char unsigned_char_Array_0[2] = { 0, 128 }; [L37-L39] unsigned char unsigned_char_Array_0[2] = { 0, 128 }; [L40-L42] unsigned long int unsigned_long_int_Array_0[2][2] = { {1191097264, 25}, {1801344522, 2568920345} }; [L40-L42] unsigned long int unsigned_long_int_Array_0[2][2] = { {1191097264, 25}, {1801344522, 2568920345} }; [L40-L42] unsigned long int unsigned_long_int_Array_0[2][2] = { {1191097264, 25}, {1801344522, 2568920345} }; [L40-L42] unsigned long int unsigned_long_int_Array_0[2][2] = { {1191097264, 25}, {1801344522, 2568920345} }; [L40-L42] unsigned long int unsigned_long_int_Array_0[2][2] = { {1191097264, 25}, {1801344522, 2568920345} }; [L43] signed short int last_1_signed_short_int_Array_0_0_ = -16; [L44] unsigned char last_1_unsigned_char_Array_0_0_ = 0; [L45] unsigned long int last_1_unsigned_long_int_Array_0_0__1_ = 25; VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=0, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L112] isInitial = 1 [L113] FCALL initially() [L115] CALL updateLastVariables() [L103] EXPR signed_short_int_Array_0[0] [L103] last_1_signed_short_int_Array_0_0_ = signed_short_int_Array_0[0] [L104] EXPR unsigned_char_Array_0[0] [L104] last_1_unsigned_char_Array_0_0_ = unsigned_char_Array_0[0] [L105] EXPR unsigned_long_int_Array_0[0][1] [L105] last_1_unsigned_long_int_Array_0_0__1_ = unsigned_long_int_Array_0[0][1] [L115] RET updateLastVariables() [L116] CALL updateVariables() [L75] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L76] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L76] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L76] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L77] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L77] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L77] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L78] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L79] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L79] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L79] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L80] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L80] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L80] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L81] float_Array_0[1] = __VERIFIER_nondet_float() [L82] EXPR float_Array_0[1] [L82] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L82] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F [L82] EXPR float_Array_0[1] [L82] EXPR float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L82] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L82] EXPR (float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L82] CALL assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L82] RET assume_abort_if_not((float_Array_0[1] >= -922337.2036854765600e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L83] signed_char_Array_0[0][0] = __VERIFIER_nondet_char() [L84] EXPR signed_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L84] CALL assume_abort_if_not(signed_char_Array_0[0][0] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L84] RET assume_abort_if_not(signed_char_Array_0[0][0] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L85] EXPR signed_char_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L85] CALL assume_abort_if_not(signed_char_Array_0[0][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L85] RET assume_abort_if_not(signed_char_Array_0[0][0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L86] signed_char_Array_0[0][1] = __VERIFIER_nondet_char() [L87] EXPR signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L87] CALL assume_abort_if_not(signed_char_Array_0[0][1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L87] RET assume_abort_if_not(signed_char_Array_0[0][1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L88] EXPR signed_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L88] CALL assume_abort_if_not(signed_char_Array_0[0][1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L88] RET assume_abort_if_not(signed_char_Array_0[0][1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L89] unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L90] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L90] CALL assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L90] RET assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L91] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L91] CALL assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L91] RET assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L92] unsigned_long_int_Array_0[0][0] = __VERIFIER_nondet_ulong() [L93] EXPR unsigned_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L93] CALL assume_abort_if_not(unsigned_long_int_Array_0[0][0] >= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L93] RET assume_abort_if_not(unsigned_long_int_Array_0[0][0] >= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L94] EXPR unsigned_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L94] CALL assume_abort_if_not(unsigned_long_int_Array_0[0][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L94] RET assume_abort_if_not(unsigned_long_int_Array_0[0][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L95] unsigned_long_int_Array_0[1][0] = __VERIFIER_nondet_ulong() [L96] EXPR unsigned_long_int_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L96] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][0] >= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L96] RET assume_abort_if_not(unsigned_long_int_Array_0[1][0] >= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L97] EXPR unsigned_long_int_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L97] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L97] RET assume_abort_if_not(unsigned_long_int_Array_0[1][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L98] unsigned_long_int_Array_0[1][1] = __VERIFIER_nondet_ulong() [L99] EXPR unsigned_long_int_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L99] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][1] >= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L99] RET assume_abort_if_not(unsigned_long_int_Array_0[1][1] >= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L100] EXPR unsigned_long_int_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L100] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][1] <= 4294967294) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L100] RET assume_abort_if_not(unsigned_long_int_Array_0[1][1] <= 4294967294) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L116] RET updateVariables() [L117] CALL step() [L49] EXPR last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_ VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L49] ((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L49] ((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1] [L49] EXPR BOOL_unsigned_char_Array_0[1] [L49] ((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L49] COND FALSE !(((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) [L56] EXPR signed_char_Array_0[0][1] [L56] signed_char_Array_0[1][1] = signed_char_Array_0[0][1] [L58] BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L58] COND FALSE !(BOOL_unsigned_char_Array_0[1]) [L61] EXPR unsigned_long_int_Array_0[0][0] [L61] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L61] COND TRUE unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0] [L62] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L62] EXPR ((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]) [L62] EXPR signed_char_Array_0[1][0] [L62] EXPR ((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L62] signed_long_int_Array_0[0] = ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))) [L64] signed_short_int_Array_0[0] = 2 [L65] EXPR float_Array_0[1] [L65] float_Array_0[0] = float_Array_0[1] [L66] EXPR unsigned_char_Array_0[1] [L66] unsigned_char_Array_0[0] = unsigned_char_Array_0[1] [L67] EXPR signed_char_Array_0[1][0] [L67] EXPR signed_char_Array_0[1][1] [L67] unsigned char stepLocal_0 = signed_char_Array_0[1][0] < signed_char_Array_0[1][1]; [L68] stepLocal_0 && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L68] stepLocal_0 && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L68] COND FALSE !(stepLocal_0 && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) [L71] EXPR unsigned_long_int_Array_0[1][1] [L71] EXPR unsigned_long_int_Array_0[1][0] [L71] unsigned_long_int_Array_0[0][1] = (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]) [L117] RET step() [L118] CALL, EXPR property() [L108] EXPR last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_ VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1] [L108] EXPR BOOL_unsigned_char_Array_0[1] [L108] EXPR ((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) [L108] EXPR signed_char_Array_0[1][1] [L108] EXPR signed_char_Array_0[0][1] [L108] EXPR (((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1) [L108] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1 [L108] EXPR BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0])))) [L108] EXPR signed_char_Array_0[1][0] [L108] EXPR signed_char_Array_0[1][1] [L108] EXPR (signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))) [L108] EXPR unsigned_long_int_Array_0[0][1] [L108] EXPR unsigned_long_int_Array_0[1][1] [L108] EXPR unsigned_long_int_Array_0[1][0] [L108] EXPR ((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0])))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1) [L108] EXPR unsigned_long_int_Array_0[0][0] [L108] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1 [L108] EXPR signed_long_int_Array_0[0] [L108] EXPR signed_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]) [L108] EXPR signed_char_Array_0[1][0] [L108] EXPR ((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1 VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2)) [L108] EXPR signed_short_int_Array_0[0] [L108] EXPR (((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2)) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2))) && (float_Array_0[0] == ((float) float_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR ((((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2))) && (float_Array_0[0] == ((float) float_Array_0[1])) [L108] EXPR float_Array_0[0] [L108] EXPR float_Array_0[1] [L108] EXPR ((((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2))) && (float_Array_0[0] == ((float) float_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (((((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2))) && (float_Array_0[0] == ((float) float_Array_0[1]))) && (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108] EXPR (((((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2))) && (float_Array_0[0] == ((float) float_Array_0[1]))) && (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L108-L109] return (((((((((last_1_signed_short_int_Array_0_0_ | last_1_unsigned_long_int_Array_0_0__1_) > last_1_unsigned_char_Array_0_0_) && BOOL_unsigned_char_Array_0[1]) ? ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1])) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) : (signed_char_Array_0[1][1] == ((signed char) signed_char_Array_0[0][1]))) && (BOOL_unsigned_char_Array_0[1] ? (signed_char_Array_0[1][0] == ((signed char) ((((signed_char_Array_0[0][1]) > (signed_char_Array_0[0][0])) ? (signed_char_Array_0[0][1]) : (signed_char_Array_0[0][0]))))) : 1)) && (((signed_char_Array_0[1][0] < signed_char_Array_0[1][1]) && (((((signed_char_Array_0[0][0]) > (signed_char_Array_0[1][0])) ? (signed_char_Array_0[0][0]) : (signed_char_Array_0[1][0]))) == signed_char_Array_0[0][1])) ? (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - (((((unsigned_long_int_Array_0[0][0]) > (unsigned_long_int_Array_0[1][0])) ? (unsigned_long_int_Array_0[0][0]) : (unsigned_long_int_Array_0[1][0]))) - 1u)))) : (unsigned_long_int_Array_0[0][1] == ((unsigned long int) (unsigned_long_int_Array_0[1][1] - unsigned_long_int_Array_0[1][0]))))) && ((unsigned_long_int_Array_0[0][0] <= signed_char_Array_0[1][0]) ? (signed_long_int_Array_0[0] == ((signed long int) ((((signed_char_Array_0[1][0]) < 0 ) ? -(signed_char_Array_0[1][0]) : (signed_char_Array_0[1][0]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 2))) && (float_Array_0[0] == ((float) float_Array_0[1]))) && (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) ; [L118] RET, EXPR property() [L118] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, last_1_signed_short_int_Array_0_0_=-16, last_1_unsigned_char_Array_0_0_=0, last_1_unsigned_long_int_Array_0_0__1_=25, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}, signed_short_int_Array_0={8:0}, unsigned_char_Array_0={9:0}, unsigned_long_int_Array_0={10:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 119 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.7s, OverallIterations: 25, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2646 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2638 mSDsluCounter, 15819 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11665 mSDsCounter, 465 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3565 IncrementalHoareTripleChecker+Invalid, 4030 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 465 mSolverCounterUnsat, 4154 mSDtfsCounter, 3565 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 815 GetRequests, 670 SyntacticMatches, 3 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1366occurred in iteration=21, InterpolantAutomatonStates: 137, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 24 MinimizatonAttempts, 1142 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 4213 NumberOfCodeBlocks, 4213 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 4181 ConstructedInterpolants, 0 QuantifiedInterpolants, 16128 SizeOfPredicates, 7 NumberOfNonLiveVariables, 1557 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 28 InterpolantComputations, 23 PerfectInterpolantSequences, 15116/15232 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 11:41:34,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/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_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/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_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/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_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/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 ee043a380462a1c76ab3130ca5e702431f3ce27542f408d77a3f5f81e3836d71 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:41:36,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:41:36,567 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 11:41:36,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:41:36,574 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:41:36,595 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:41:36,596 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:41:36,596 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:41:36,596 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:41:36,596 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:41:36,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:41:36,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:41:36,597 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:41:36,597 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:41:36,597 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:41:36,597 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:41:36,597 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:41:36,598 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:41:36,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:41:36,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:41:36,598 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:41:36,598 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:41:36,598 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:41:36,598 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 11:41:36,598 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 11:41:36,599 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 11:41:36,599 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:41:36,599 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:41:36,599 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:41:36,599 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:41:36,599 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:41:36,599 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:41:36,599 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:41:36,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:41:36,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:41:36,600 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:41:36,600 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:41:36,600 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:41:36,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:41:36,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:41:36,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:41:36,601 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:41:36,601 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:41:36,601 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:41:36,601 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 11:41:36,601 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 11:41:36,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:41:36,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:41:36,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:41:36,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:41:36,602 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_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/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 -> ee043a380462a1c76ab3130ca5e702431f3ce27542f408d77a3f5f81e3836d71 [2024-12-02 11:41:36,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:41:36,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:41:36,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:41:36,858 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:41:36,858 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:41:36,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i [2024-12-02 11:41:39,508 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/data/08b8cae50/cc77aacabd5d437a888c3e7bef07ec1a/FLAG1bf6086d0 [2024-12-02 11:41:39,692 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:41:39,693 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i [2024-12-02 11:41:39,700 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/data/08b8cae50/cc77aacabd5d437a888c3e7bef07ec1a/FLAG1bf6086d0 [2024-12-02 11:41:40,056 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/data/08b8cae50/cc77aacabd5d437a888c3e7bef07ec1a [2024-12-02 11:41:40,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:41:40,059 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:41:40,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:41:40,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:41:40,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:41:40,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:41:40" (1/1) ... [2024-12-02 11:41:40,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38bd1942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:40, skipping insertion in model container [2024-12-02 11:41:40,064 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:41:40" (1/1) ... [2024-12-02 11:41:40,076 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:41:40,174 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_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i[916,929] [2024-12-02 11:41:40,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:41:40,248 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:41:40,256 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_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-88.i[916,929] [2024-12-02 11:41:40,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:41:40,323 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:41:40,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:40 WrapperNode [2024-12-02 11:41:40,323 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:41:40,324 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:41:40,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:41:40,324 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:41:40,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:40" (1/1) ... [2024-12-02 11:41:40,343 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:40" (1/1) ... [2024-12-02 11:41:40,372 INFO L138 Inliner]: procedures = 36, calls = 169, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 510 [2024-12-02 11:41:40,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:41:40,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:41:40,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:41:40,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:41:40,380 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:40" (1/1) ... [2024-12-02 11:41:40,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:40" (1/1) ... [2024-12-02 11:41:40,387 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:40" (1/1) ... [2024-12-02 11:41:40,407 INFO L175 MemorySlicer]: Split 134 memory accesses to 8 slices as follows [2, 16, 11, 54, 3, 4, 10, 34]. 40 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 2, 2, 4, 1, 1, 2, 4]. The 19 writes are split as follows [0, 2, 2, 6, 1, 1, 2, 5]. [2024-12-02 11:41:40,408 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:40" (1/1) ... [2024-12-02 11:41:40,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:40" (1/1) ... [2024-12-02 11:41:40,433 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:40" (1/1) ... [2024-12-02 11:41:40,434 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:40" (1/1) ... [2024-12-02 11:41:40,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:40" (1/1) ... [2024-12-02 11:41:40,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:40" (1/1) ... [2024-12-02 11:41:40,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:40" (1/1) ... [2024-12-02 11:41:40,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:41:40,453 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:41:40,453 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:41:40,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:41:40,454 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:40" (1/1) ... [2024-12-02 11:41:40,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:41:40,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:41:40,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:41:40,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:41:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:41:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 11:41:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 11:41:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-12-02 11:41:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-12-02 11:41:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-12-02 11:41:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-12-02 11:41:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-12-02 11:41:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2024-12-02 11:41:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-12-02 11:41:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-12-02 11:41:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-12-02 11:41:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-12-02 11:41:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-12-02 11:41:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2024-12-02 11:41:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6 [2024-12-02 11:41:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#7 [2024-12-02 11:41:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 11:41:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 11:41:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 11:41:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-12-02 11:41:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-12-02 11:41:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-12-02 11:41:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-12-02 11:41:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-12-02 11:41:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-12-02 11:41:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-12-02 11:41:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-12-02 11:41:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-12-02 11:41:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-12-02 11:41:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-12-02 11:41:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-12-02 11:41:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-12-02 11:41:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 11:41:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 11:41:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-12-02 11:41:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-12-02 11:41:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-12-02 11:41:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-12-02 11:41:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-12-02 11:41:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-12-02 11:41:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 11:41:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 11:41:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-12-02 11:41:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-12-02 11:41:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-12-02 11:41:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-12-02 11:41:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-12-02 11:41:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-12-02 11:41:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-12-02 11:41:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-12-02 11:41:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-12-02 11:41:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-12-02 11:41:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-12-02 11:41:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-12-02 11:41:40,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2024-12-02 11:41:40,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#7 [2024-12-02 11:41:40,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-02 11:41:40,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-02 11:41:40,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-12-02 11:41:40,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-12-02 11:41:40,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-12-02 11:41:40,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-12-02 11:41:40,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-12-02 11:41:40,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-12-02 11:41:40,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-12-02 11:41:40,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-12-02 11:41:40,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-12-02 11:41:40,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-12-02 11:41:40,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-12-02 11:41:40,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-12-02 11:41:40,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-12-02 11:41:40,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-12-02 11:41:40,508 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:41:40,508 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:41:40,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:41:40,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:41:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 11:41:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 11:41:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-12-02 11:41:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-12-02 11:41:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-12-02 11:41:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-12-02 11:41:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-12-02 11:41:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2024-12-02 11:41:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-12-02 11:41:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-12-02 11:41:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-12-02 11:41:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-12-02 11:41:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-12-02 11:41:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-12-02 11:41:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2024-12-02 11:41:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#7 [2024-12-02 11:41:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 11:41:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 11:41:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-12-02 11:41:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-12-02 11:41:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-12-02 11:41:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-12-02 11:41:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-12-02 11:41:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-12-02 11:41:40,692 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:41:40,694 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:41:41,221 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2024-12-02 11:41:41,221 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:41:41,232 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:41:41,232 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:41:41,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:41:41 BoogieIcfgContainer [2024-12-02 11:41:41,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:41:41,235 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:41:41,235 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:41:41,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:41:41,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:41:40" (1/3) ... [2024-12-02 11:41:41,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@719af67f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:41:41, skipping insertion in model container [2024-12-02 11:41:41,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:41:40" (2/3) ... [2024-12-02 11:41:41,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@719af67f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:41:41, skipping insertion in model container [2024-12-02 11:41:41,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:41:41" (3/3) ... [2024-12-02 11:41:41,241 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-88.i [2024-12-02 11:41:41,251 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:41:41,252 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-88.i that has 2 procedures, 111 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:41:41,293 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:41:41,303 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;@6cd07c85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:41:41,303 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:41:41,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 91 states have (on average 1.4175824175824177) internal successors, (129), 92 states have internal predecessors, (129), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 11:41:41,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 11:41:41,315 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:41,315 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:41,315 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:41,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:41,319 INFO L85 PathProgramCache]: Analyzing trace with hash 441684127, now seen corresponding path program 1 times [2024-12-02 11:41:41,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:41,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552094934] [2024-12-02 11:41:41,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:41,330 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 11:41:41,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:41,332 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:41,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:41,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:41:41,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:41,671 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-12-02 11:41:41,672 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:41:41,672 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:41,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552094934] [2024-12-02 11:41:41,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552094934] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:41,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:41,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:41:41,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316935144] [2024-12-02 11:41:41,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:41,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:41:41,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:41,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:41:41,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:41:41,700 INFO L87 Difference]: Start difference. First operand has 111 states, 91 states have (on average 1.4175824175824177) internal successors, (129), 92 states have internal predecessors, (129), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:41,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:41,728 INFO L93 Difference]: Finished difference Result 215 states and 337 transitions. [2024-12-02 11:41:41,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:41:41,730 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-12-02 11:41:41,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:41,736 INFO L225 Difference]: With dead ends: 215 [2024-12-02 11:41:41,736 INFO L226 Difference]: Without dead ends: 107 [2024-12-02 11:41:41,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 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 11:41:41,742 INFO L435 NwaCegarLoop]: 156 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, 156 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 11:41:41,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:41,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-12-02 11:41:41,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-12-02 11:41:41,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 88 states have internal predecessors, (122), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 11:41:41,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2024-12-02 11:41:41,780 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 156 transitions. Word has length 139 [2024-12-02 11:41:41,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:41,780 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 156 transitions. [2024-12-02 11:41:41,781 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:41,781 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2024-12-02 11:41:41,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 11:41:41,784 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:41,784 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:41,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:41,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:41,984 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:41,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:41,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1135899215, now seen corresponding path program 1 times [2024-12-02 11:41:41,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:41,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620127667] [2024-12-02 11:41:41,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:41,986 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 11:41:41,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:41,988 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:41,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:42,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 11:41:42,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:42,300 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:42,300 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:41:42,300 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:42,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620127667] [2024-12-02 11:41:42,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620127667] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:42,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:42,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:41:42,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414604202] [2024-12-02 11:41:42,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:42,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:41:42,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:42,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:41:42,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:41:42,303 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:42,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:42,390 INFO L93 Difference]: Finished difference Result 218 states and 319 transitions. [2024-12-02 11:41:42,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:41:42,390 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-12-02 11:41:42,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:42,392 INFO L225 Difference]: With dead ends: 218 [2024-12-02 11:41:42,392 INFO L226 Difference]: Without dead ends: 114 [2024-12-02 11:41:42,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:41:42,394 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:42,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 724 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:42,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-12-02 11:41:42,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2024-12-02 11:41:42,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 94 states have internal predecessors, (128), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 11:41:42,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 162 transitions. [2024-12-02 11:41:42,406 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 162 transitions. Word has length 139 [2024-12-02 11:41:42,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:42,408 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 162 transitions. [2024-12-02 11:41:42,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:42,408 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 162 transitions. [2024-12-02 11:41:42,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 11:41:42,410 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:42,411 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:42,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:42,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:42,611 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:42,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:42,612 INFO L85 PathProgramCache]: Analyzing trace with hash -455840845, now seen corresponding path program 1 times [2024-12-02 11:41:42,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:42,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476594123] [2024-12-02 11:41:42,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:42,612 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 11:41:42,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:42,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:42,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:42,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 11:41:42,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:42,952 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:42,952 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:41:42,953 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:42,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476594123] [2024-12-02 11:41:42,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1476594123] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:42,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:42,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:41:42,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580357577] [2024-12-02 11:41:42,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:42,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:41:42,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:42,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:41:42,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:41:42,955 INFO L87 Difference]: Start difference. First operand 113 states and 162 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:43,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:43,058 INFO L93 Difference]: Finished difference Result 228 states and 328 transitions. [2024-12-02 11:41:43,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:41:43,059 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-12-02 11:41:43,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:43,060 INFO L225 Difference]: With dead ends: 228 [2024-12-02 11:41:43,061 INFO L226 Difference]: Without dead ends: 118 [2024-12-02 11:41:43,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:41:43,062 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 1 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:43,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 992 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:43,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-12-02 11:41:43,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-12-02 11:41:43,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 98 states have (on average 1.346938775510204) internal successors, (132), 98 states have internal predecessors, (132), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 11:41:43,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 166 transitions. [2024-12-02 11:41:43,071 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 166 transitions. Word has length 139 [2024-12-02 11:41:43,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:43,072 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 166 transitions. [2024-12-02 11:41:43,072 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:43,072 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 166 transitions. [2024-12-02 11:41:43,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 11:41:43,074 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:43,075 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:43,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:43,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:43,275 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:43,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:43,276 INFO L85 PathProgramCache]: Analyzing trace with hash -453993803, now seen corresponding path program 1 times [2024-12-02 11:41:43,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:43,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131629775] [2024-12-02 11:41:43,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:43,277 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 11:41:43,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:43,278 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:43,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:43,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 11:41:43,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:43,708 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 14 [2024-12-02 11:41:43,759 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 30 treesize of output 14 [2024-12-02 11:41:43,847 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 11:41:43,984 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 27 treesize of output 11 [2024-12-02 11:41:44,088 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 27 treesize of output 11 [2024-12-02 11:41:44,217 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 30 treesize of output 14 [2024-12-02 11:41:44,252 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 15 treesize of output 7 [2024-12-02 11:41:44,258 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 11:41:44,280 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-12-02 11:41:44,280 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:41:44,751 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 11:41:44,751 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:44,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131629775] [2024-12-02 11:41:44,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131629775] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:41:44,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 11:41:44,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 15 [2024-12-02 11:41:44,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084432100] [2024-12-02 11:41:44,752 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 11:41:44,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 11:41:44,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:44,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 11:41:44,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:41:44,754 INFO L87 Difference]: Start difference. First operand 117 states and 166 transitions. Second operand has 15 states, 13 states have (on average 7.769230769230769) internal successors, (101), 15 states have internal predecessors, (101), 7 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) [2024-12-02 11:41:46,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:46,159 INFO L93 Difference]: Finished difference Result 353 states and 499 transitions. [2024-12-02 11:41:46,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:41:46,159 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.769230769230769) internal successors, (101), 15 states have internal predecessors, (101), 7 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) Word has length 139 [2024-12-02 11:41:46,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:46,161 INFO L225 Difference]: With dead ends: 353 [2024-12-02 11:41:46,161 INFO L226 Difference]: Without dead ends: 239 [2024-12-02 11:41:46,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:41:46,162 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 392 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:46,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 951 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 11:41:46,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-12-02 11:41:46,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 231. [2024-12-02 11:41:46,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 193 states have (on average 1.3419689119170986) internal successors, (259), 193 states have internal predecessors, (259), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 11:41:46,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 327 transitions. [2024-12-02 11:41:46,186 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 327 transitions. Word has length 139 [2024-12-02 11:41:46,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:46,187 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 327 transitions. [2024-12-02 11:41:46,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.769230769230769) internal successors, (101), 15 states have internal predecessors, (101), 7 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) [2024-12-02 11:41:46,187 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 327 transitions. [2024-12-02 11:41:46,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 11:41:46,189 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:46,189 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:46,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:46,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:46,390 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:46,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:46,390 INFO L85 PathProgramCache]: Analyzing trace with hash -2021328912, now seen corresponding path program 1 times [2024-12-02 11:41:46,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:46,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002332475] [2024-12-02 11:41:46,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:46,391 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 11:41:46,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:46,392 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:46,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:46,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 11:41:46,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:46,747 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 14 [2024-12-02 11:41:46,787 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 11:41:47,314 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:41:47,314 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 42 treesize of output 38 [2024-12-02 11:41:47,621 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:41:47,621 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 106 treesize of output 46 [2024-12-02 11:41:47,655 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 11:41:47,655 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:41:47,655 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:47,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002332475] [2024-12-02 11:41:47,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002332475] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:47,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:47,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:41:47,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91452775] [2024-12-02 11:41:47,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:47,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:41:47,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:47,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:41:47,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:41:47,657 INFO L87 Difference]: Start difference. First operand 231 states and 327 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:48,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:48,628 INFO L93 Difference]: Finished difference Result 567 states and 798 transitions. [2024-12-02 11:41:48,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 11:41:48,628 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-12-02 11:41:48,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:48,630 INFO L225 Difference]: With dead ends: 567 [2024-12-02 11:41:48,630 INFO L226 Difference]: Without dead ends: 339 [2024-12-02 11:41:48,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:41:48,631 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 304 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:48,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 940 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 11:41:48,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-12-02 11:41:48,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 258. [2024-12-02 11:41:48,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 212 states have (on average 1.3254716981132075) internal successors, (281), 213 states have internal predecessors, (281), 41 states have call successors, (41), 4 states have call predecessors, (41), 4 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-02 11:41:48,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 363 transitions. [2024-12-02 11:41:48,657 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 363 transitions. Word has length 141 [2024-12-02 11:41:48,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:48,657 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 363 transitions. [2024-12-02 11:41:48,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:48,657 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 363 transitions. [2024-12-02 11:41:48,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 11:41:48,658 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:48,658 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:48,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:48,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:48,859 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:48,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:48,859 INFO L85 PathProgramCache]: Analyzing trace with hash -2019873618, now seen corresponding path program 1 times [2024-12-02 11:41:48,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:48,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657944674] [2024-12-02 11:41:48,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:48,860 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 11:41:48,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:48,861 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:48,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:49,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 11:41:49,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:49,329 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 178 proven. 39 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-12-02 11:41:49,329 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:41:49,409 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:49,410 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:49,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657944674] [2024-12-02 11:41:49,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1657944674] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:41:49,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:41:49,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-12-02 11:41:49,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167671039] [2024-12-02 11:41:49,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:49,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:41:49,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:49,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:41:49,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:41:49,411 INFO L87 Difference]: Start difference. First operand 258 states and 363 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:49,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:49,503 INFO L93 Difference]: Finished difference Result 523 states and 730 transitions. [2024-12-02 11:41:49,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:41:49,504 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-12-02 11:41:49,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:49,506 INFO L225 Difference]: With dead ends: 523 [2024-12-02 11:41:49,506 INFO L226 Difference]: Without dead ends: 409 [2024-12-02 11:41:49,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:41:49,507 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 170 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:49,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 468 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:49,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-12-02 11:41:49,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 405. [2024-12-02 11:41:49,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 352 states have (on average 1.3409090909090908) internal successors, (472), 355 states have internal predecessors, (472), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-12-02 11:41:49,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 562 transitions. [2024-12-02 11:41:49,536 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 562 transitions. Word has length 141 [2024-12-02 11:41:49,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:49,537 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 562 transitions. [2024-12-02 11:41:49,537 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:49,537 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 562 transitions. [2024-12-02 11:41:49,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 11:41:49,539 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:49,539 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:49,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:49,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:49,740 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:49,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:49,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1997241364, now seen corresponding path program 1 times [2024-12-02 11:41:49,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:49,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419753369] [2024-12-02 11:41:49,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:49,740 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 11:41:49,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:49,742 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:49,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:49,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:41:49,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:49,934 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 11:41:50,058 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:50,058 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:41:50,058 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:50,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419753369] [2024-12-02 11:41:50,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419753369] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:50,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:50,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:41:50,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497443632] [2024-12-02 11:41:50,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:50,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:41:50,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:50,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:41:50,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:41:50,060 INFO L87 Difference]: Start difference. First operand 405 states and 562 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:50,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:50,198 INFO L93 Difference]: Finished difference Result 1008 states and 1399 transitions. [2024-12-02 11:41:50,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:41:50,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-12-02 11:41:50,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:50,203 INFO L225 Difference]: With dead ends: 1008 [2024-12-02 11:41:50,203 INFO L226 Difference]: Without dead ends: 630 [2024-12-02 11:41:50,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:41:50,204 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 145 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:50,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 598 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:50,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-12-02 11:41:50,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 436. [2024-12-02 11:41:50,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 371 states have (on average 1.3234501347708896) internal successors, (491), 373 states have internal predecessors, (491), 55 states have call successors, (55), 9 states have call predecessors, (55), 9 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2024-12-02 11:41:50,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 601 transitions. [2024-12-02 11:41:50,243 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 601 transitions. Word has length 141 [2024-12-02 11:41:50,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:50,243 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 601 transitions. [2024-12-02 11:41:50,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:50,243 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 601 transitions. [2024-12-02 11:41:50,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 11:41:50,244 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:50,245 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:50,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:50,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:50,445 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:50,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:50,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1840872162, now seen corresponding path program 1 times [2024-12-02 11:41:50,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:50,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051344374] [2024-12-02 11:41:50,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:50,446 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 11:41:50,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:50,447 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:50,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:50,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:41:50,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:50,644 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:50,644 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:41:50,645 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:50,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051344374] [2024-12-02 11:41:50,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051344374] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:50,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:50,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:41:50,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038883677] [2024-12-02 11:41:50,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:50,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:41:50,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:50,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:41:50,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:41:50,646 INFO L87 Difference]: Start difference. First operand 436 states and 601 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:50,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:50,691 INFO L93 Difference]: Finished difference Result 826 states and 1143 transitions. [2024-12-02 11:41:50,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:41:50,691 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-12-02 11:41:50,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:50,693 INFO L225 Difference]: With dead ends: 826 [2024-12-02 11:41:50,694 INFO L226 Difference]: Without dead ends: 448 [2024-12-02 11:41:50,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 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 11:41:50,695 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 595 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 11:41:50,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 595 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:50,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-12-02 11:41:50,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2024-12-02 11:41:50,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 383 states have (on average 1.3133159268929504) internal successors, (503), 385 states have internal predecessors, (503), 55 states have call successors, (55), 9 states have call predecessors, (55), 9 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2024-12-02 11:41:50,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 613 transitions. [2024-12-02 11:41:50,717 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 613 transitions. Word has length 143 [2024-12-02 11:41:50,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:50,718 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 613 transitions. [2024-12-02 11:41:50,718 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:50,718 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 613 transitions. [2024-12-02 11:41:50,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 11:41:50,719 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:50,719 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:50,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:50,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:50,919 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:50,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:50,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1264874310, now seen corresponding path program 1 times [2024-12-02 11:41:50,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:50,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797035809] [2024-12-02 11:41:50,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:50,920 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 11:41:50,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:50,922 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:50,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Waiting until timeout for monitored process [2024-12-02 11:41:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:51,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 11:41:51,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:51,450 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 178 proven. 39 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-12-02 11:41:51,450 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:41:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:51,583 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:51,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797035809] [2024-12-02 11:41:51,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797035809] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:41:51,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:41:51,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-12-02 11:41:51,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384771250] [2024-12-02 11:41:51,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:51,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:41:51,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:51,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:41:51,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:41:51,585 INFO L87 Difference]: Start difference. First operand 448 states and 613 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:51,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:51,699 INFO L93 Difference]: Finished difference Result 993 states and 1361 transitions. [2024-12-02 11:41:51,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:41:51,700 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-12-02 11:41:51,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:51,703 INFO L225 Difference]: With dead ends: 993 [2024-12-02 11:41:51,703 INFO L226 Difference]: Without dead ends: 603 [2024-12-02 11:41:51,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:41:51,704 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 82 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:51,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 695 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:51,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-12-02 11:41:51,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 483. [2024-12-02 11:41:51,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 418 states have (on average 1.325358851674641) internal successors, (554), 420 states have internal predecessors, (554), 55 states have call successors, (55), 9 states have call predecessors, (55), 9 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2024-12-02 11:41:51,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 664 transitions. [2024-12-02 11:41:51,726 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 664 transitions. Word has length 143 [2024-12-02 11:41:51,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:51,726 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 664 transitions. [2024-12-02 11:41:51,727 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:51,727 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 664 transitions. [2024-12-02 11:41:51,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 11:41:51,728 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:51,728 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:51,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Ended with exit code 0 [2024-12-02 11:41:51,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:51,928 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:51,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:51,929 INFO L85 PathProgramCache]: Analyzing trace with hash -729270396, now seen corresponding path program 1 times [2024-12-02 11:41:51,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:51,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518034812] [2024-12-02 11:41:51,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:51,929 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 11:41:51,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:51,931 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:51,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:52,169 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:41:52,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:52,185 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 11:41:52,338 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:52,338 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:41:52,338 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:52,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518034812] [2024-12-02 11:41:52,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518034812] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:52,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:52,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:41:52,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620005239] [2024-12-02 11:41:52,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:52,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:41:52,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:52,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:41:52,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:41:52,340 INFO L87 Difference]: Start difference. First operand 483 states and 664 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:52,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:52,489 INFO L93 Difference]: Finished difference Result 1061 states and 1464 transitions. [2024-12-02 11:41:52,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:41:52,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-12-02 11:41:52,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:52,492 INFO L225 Difference]: With dead ends: 1061 [2024-12-02 11:41:52,492 INFO L226 Difference]: Without dead ends: 636 [2024-12-02 11:41:52,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 139 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 11:41:52,494 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 130 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:52,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 595 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:52,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-12-02 11:41:52,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 533. [2024-12-02 11:41:52,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 468 states have (on average 1.3354700854700854) internal successors, (625), 470 states have internal predecessors, (625), 55 states have call successors, (55), 9 states have call predecessors, (55), 9 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2024-12-02 11:41:52,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 735 transitions. [2024-12-02 11:41:52,527 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 735 transitions. Word has length 143 [2024-12-02 11:41:52,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:52,527 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 735 transitions. [2024-12-02 11:41:52,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:52,528 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 735 transitions. [2024-12-02 11:41:52,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 11:41:52,529 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:52,529 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:52,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:52,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:52,729 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:52,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:52,730 INFO L85 PathProgramCache]: Analyzing trace with hash 500859744, now seen corresponding path program 1 times [2024-12-02 11:41:52,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:52,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151675461] [2024-12-02 11:41:52,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:52,730 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 11:41:52,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:52,732 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:52,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:52,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 11:41:52,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:53,208 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 178 proven. 39 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-12-02 11:41:53,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:41:53,308 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:53,308 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:53,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151675461] [2024-12-02 11:41:53,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151675461] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:41:53,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:41:53,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-12-02 11:41:53,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898368977] [2024-12-02 11:41:53,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:53,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:41:53,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:53,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:41:53,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:41:53,309 INFO L87 Difference]: Start difference. First operand 533 states and 735 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:53,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:53,415 INFO L93 Difference]: Finished difference Result 1070 states and 1470 transitions. [2024-12-02 11:41:53,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:41:53,415 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-12-02 11:41:53,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:53,418 INFO L225 Difference]: With dead ends: 1070 [2024-12-02 11:41:53,419 INFO L226 Difference]: Without dead ends: 645 [2024-12-02 11:41:53,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:41:53,421 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 71 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:53,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 571 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:53,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-12-02 11:41:53,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 535. [2024-12-02 11:41:53,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 470 states have (on average 1.3297872340425532) internal successors, (625), 472 states have internal predecessors, (625), 55 states have call successors, (55), 9 states have call predecessors, (55), 9 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2024-12-02 11:41:53,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 735 transitions. [2024-12-02 11:41:53,461 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 735 transitions. Word has length 144 [2024-12-02 11:41:53,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:53,462 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 735 transitions. [2024-12-02 11:41:53,462 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:53,462 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 735 transitions. [2024-12-02 11:41:53,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 11:41:53,463 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:53,463 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:53,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:53,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:53,664 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:53,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:53,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1910721159, now seen corresponding path program 1 times [2024-12-02 11:41:53,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:53,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2123500644] [2024-12-02 11:41:53,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:53,664 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 11:41:53,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:53,666 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:53,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:53,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 11:41:53,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:54,138 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 178 proven. 39 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-12-02 11:41:54,138 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:41:54,232 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:54,232 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:54,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2123500644] [2024-12-02 11:41:54,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2123500644] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:41:54,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:41:54,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-12-02 11:41:54,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928232400] [2024-12-02 11:41:54,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:54,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:41:54,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:54,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:41:54,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:41:54,234 INFO L87 Difference]: Start difference. First operand 535 states and 735 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:54,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:54,318 INFO L93 Difference]: Finished difference Result 1060 states and 1448 transitions. [2024-12-02 11:41:54,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:41:54,318 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-12-02 11:41:54,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:54,320 INFO L225 Difference]: With dead ends: 1060 [2024-12-02 11:41:54,320 INFO L226 Difference]: Without dead ends: 633 [2024-12-02 11:41:54,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:41:54,321 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 124 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:54,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 433 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:54,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-12-02 11:41:54,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 543. [2024-12-02 11:41:54,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 478 states have (on average 1.3263598326359833) internal successors, (634), 480 states have internal predecessors, (634), 55 states have call successors, (55), 9 states have call predecessors, (55), 9 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2024-12-02 11:41:54,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 744 transitions. [2024-12-02 11:41:54,341 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 744 transitions. Word has length 145 [2024-12-02 11:41:54,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:54,341 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 744 transitions. [2024-12-02 11:41:54,341 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:54,341 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 744 transitions. [2024-12-02 11:41:54,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 11:41:54,342 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:54,342 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:54,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:54,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:54,543 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:54,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:54,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1192358330, now seen corresponding path program 1 times [2024-12-02 11:41:54,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:54,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825335597] [2024-12-02 11:41:54,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:54,543 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 11:41:54,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:54,545 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:54,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:54,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 11:41:54,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:54,775 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 11:41:54,781 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:41:54,781 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 28 treesize of output 31 [2024-12-02 11:41:54,868 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:54,868 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:41:54,868 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:54,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825335597] [2024-12-02 11:41:54,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825335597] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:54,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:54,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:41:54,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406615572] [2024-12-02 11:41:54,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:54,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:41:54,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:54,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:41:54,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:41:54,869 INFO L87 Difference]: Start difference. First operand 543 states and 744 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:55,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:55,146 INFO L93 Difference]: Finished difference Result 1318 states and 1792 transitions. [2024-12-02 11:41:55,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:41:55,147 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 146 [2024-12-02 11:41:55,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:55,150 INFO L225 Difference]: With dead ends: 1318 [2024-12-02 11:41:55,150 INFO L226 Difference]: Without dead ends: 883 [2024-12-02 11:41:55,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:41:55,151 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 100 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:55,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 909 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:41:55,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-12-02 11:41:55,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 871. [2024-12-02 11:41:55,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 773 states have (on average 1.3091849935316946) internal successors, (1012), 779 states have internal predecessors, (1012), 83 states have call successors, (83), 14 states have call predecessors, (83), 14 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 11:41:55,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1178 transitions. [2024-12-02 11:41:55,205 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1178 transitions. Word has length 146 [2024-12-02 11:41:55,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:55,205 INFO L471 AbstractCegarLoop]: Abstraction has 871 states and 1178 transitions. [2024-12-02 11:41:55,206 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:55,206 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1178 transitions. [2024-12-02 11:41:55,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 11:41:55,207 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:55,207 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:55,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 11:41:55,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:55,407 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:55,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:55,408 INFO L85 PathProgramCache]: Analyzing trace with hash -108489272, now seen corresponding path program 1 times [2024-12-02 11:41:55,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:55,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424611385] [2024-12-02 11:41:55,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:55,408 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 11:41:55,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:55,410 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:55,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:55,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 11:41:55,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:55,865 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 33 treesize of output 15 [2024-12-02 11:41:55,889 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 178 proven. 39 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-12-02 11:41:55,889 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:41:55,998 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:55,998 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:55,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424611385] [2024-12-02 11:41:55,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1424611385] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:41:55,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:41:55,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-12-02 11:41:55,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445421402] [2024-12-02 11:41:55,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:55,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:41:55,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:55,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:41:55,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:41:55,999 INFO L87 Difference]: Start difference. First operand 871 states and 1178 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:56,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:56,107 INFO L93 Difference]: Finished difference Result 1671 states and 2251 transitions. [2024-12-02 11:41:56,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:41:56,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 146 [2024-12-02 11:41:56,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:56,110 INFO L225 Difference]: With dead ends: 1671 [2024-12-02 11:41:56,110 INFO L226 Difference]: Without dead ends: 898 [2024-12-02 11:41:56,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:41:56,112 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 176 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:56,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 540 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:56,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-12-02 11:41:56,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 797. [2024-12-02 11:41:56,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 699 states have (on average 1.3004291845493563) internal successors, (909), 705 states have internal predecessors, (909), 83 states have call successors, (83), 14 states have call predecessors, (83), 14 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 11:41:56,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1075 transitions. [2024-12-02 11:41:56,159 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1075 transitions. Word has length 146 [2024-12-02 11:41:56,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:56,160 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1075 transitions. [2024-12-02 11:41:56,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:56,160 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1075 transitions. [2024-12-02 11:41:56,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 11:41:56,161 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:56,161 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:56,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:56,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:56,361 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:56,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:56,362 INFO L85 PathProgramCache]: Analyzing trace with hash 296501322, now seen corresponding path program 1 times [2024-12-02 11:41:56,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:56,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1060033543] [2024-12-02 11:41:56,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:56,363 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 11:41:56,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:56,364 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:56,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Waiting until timeout for monitored process [2024-12-02 11:41:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:56,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 11:41:56,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:56,612 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 11:41:56,616 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 21 treesize of output 21 [2024-12-02 11:41:56,639 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:41:56,639 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 37 treesize of output 24 [2024-12-02 11:41:56,669 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:41:56,669 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 30 [2024-12-02 11:41:56,686 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:56,686 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:41:56,686 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:56,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1060033543] [2024-12-02 11:41:56,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1060033543] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:56,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:56,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:41:56,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824419374] [2024-12-02 11:41:56,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:56,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:41:56,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:56,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:41:56,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:41:56,687 INFO L87 Difference]: Start difference. First operand 797 states and 1075 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:56,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:56,949 INFO L93 Difference]: Finished difference Result 1492 states and 2014 transitions. [2024-12-02 11:41:56,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:41:56,949 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 146 [2024-12-02 11:41:56,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:56,951 INFO L225 Difference]: With dead ends: 1492 [2024-12-02 11:41:56,951 INFO L226 Difference]: Without dead ends: 793 [2024-12-02 11:41:56,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:41:56,952 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 98 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:56,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 677 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:41:56,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2024-12-02 11:41:56,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 789. [2024-12-02 11:41:56,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 689 states have (on average 1.2931785195936139) internal successors, (891), 695 states have internal predecessors, (891), 83 states have call successors, (83), 16 states have call predecessors, (83), 16 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 11:41:56,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1057 transitions. [2024-12-02 11:41:56,981 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1057 transitions. Word has length 146 [2024-12-02 11:41:56,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:56,982 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1057 transitions. [2024-12-02 11:41:56,982 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:56,982 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1057 transitions. [2024-12-02 11:41:56,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 11:41:56,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:56,983 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:56,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Ended with exit code 0 [2024-12-02 11:41:57,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:57,184 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:57,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:57,184 INFO L85 PathProgramCache]: Analyzing trace with hash 916366955, now seen corresponding path program 1 times [2024-12-02 11:41:57,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:57,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544476956] [2024-12-02 11:41:57,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:57,184 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 11:41:57,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:57,186 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:57,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:57,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:41:57,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:57,396 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:57,396 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:41:57,396 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:57,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544476956] [2024-12-02 11:41:57,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544476956] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:57,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:57,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:41:57,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40475275] [2024-12-02 11:41:57,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:57,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:41:57,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:57,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:41:57,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:41:57,398 INFO L87 Difference]: Start difference. First operand 789 states and 1057 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:57,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:57,435 INFO L93 Difference]: Finished difference Result 1488 states and 2000 transitions. [2024-12-02 11:41:57,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:41:57,436 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 148 [2024-12-02 11:41:57,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:57,439 INFO L225 Difference]: With dead ends: 1488 [2024-12-02 11:41:57,439 INFO L226 Difference]: Without dead ends: 797 [2024-12-02 11:41:57,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 146 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 11:41:57,440 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:57,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 300 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:57,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2024-12-02 11:41:57,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 797. [2024-12-02 11:41:57,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 697 states have (on average 1.2898134863701578) internal successors, (899), 703 states have internal predecessors, (899), 83 states have call successors, (83), 16 states have call predecessors, (83), 16 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 11:41:57,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1065 transitions. [2024-12-02 11:41:57,498 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1065 transitions. Word has length 148 [2024-12-02 11:41:57,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:57,499 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1065 transitions. [2024-12-02 11:41:57,499 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:57,499 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1065 transitions. [2024-12-02 11:41:57,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 11:41:57,500 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:57,500 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:57,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:57,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:57,700 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:57,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:57,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1456165674, now seen corresponding path program 1 times [2024-12-02 11:41:57,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:57,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072900126] [2024-12-02 11:41:57,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:57,702 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 11:41:57,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:57,703 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:57,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:57,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 11:41:57,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:57,904 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 11:41:57,945 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 34 treesize of output 22 [2024-12-02 11:41:57,955 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:41:57,955 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:41:57,955 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:57,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072900126] [2024-12-02 11:41:57,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2072900126] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:57,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:57,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:41:57,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567314256] [2024-12-02 11:41:57,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:57,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:41:57,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:57,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:41:57,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:41:57,956 INFO L87 Difference]: Start difference. First operand 797 states and 1065 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:58,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:58,051 INFO L93 Difference]: Finished difference Result 1496 states and 2000 transitions. [2024-12-02 11:41:58,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:41:58,053 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 148 [2024-12-02 11:41:58,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:58,055 INFO L225 Difference]: With dead ends: 1496 [2024-12-02 11:41:58,056 INFO L226 Difference]: Without dead ends: 797 [2024-12-02 11:41:58,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 144 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 11:41:58,057 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 133 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:58,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 780 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:41:58,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2024-12-02 11:41:58,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 797. [2024-12-02 11:41:58,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 697 states have (on average 1.278335724533716) internal successors, (891), 703 states have internal predecessors, (891), 83 states have call successors, (83), 16 states have call predecessors, (83), 16 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 11:41:58,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1057 transitions. [2024-12-02 11:41:58,087 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1057 transitions. Word has length 148 [2024-12-02 11:41:58,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:58,087 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1057 transitions. [2024-12-02 11:41:58,087 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:41:58,087 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1057 transitions. [2024-12-02 11:41:58,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 11:41:58,088 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:58,089 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:58,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:58,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:58,289 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:58,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:58,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1061947218, now seen corresponding path program 1 times [2024-12-02 11:41:58,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:41:58,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669957902] [2024-12-02 11:41:58,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:58,290 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 11:41:58,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:41:58,292 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:58,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:41:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:58,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 11:41:58,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:58,761 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 14 [2024-12-02 11:41:58,796 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 30 treesize of output 14 [2024-12-02 11:41:58,863 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 11:41:58,957 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 27 treesize of output 11 [2024-12-02 11:41:59,036 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 27 treesize of output 11 [2024-12-02 11:41:59,116 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 30 treesize of output 14 [2024-12-02 11:41:59,167 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:41:59,167 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 36 treesize of output 41 [2024-12-02 11:41:59,380 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 11:41:59,386 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:41:59,387 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 39 treesize of output 13 [2024-12-02 11:41:59,400 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-12-02 11:41:59,401 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:41:59,752 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 11:41:59,752 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:41:59,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669957902] [2024-12-02 11:41:59,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669957902] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:41:59,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 11:41:59,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2024-12-02 11:41:59,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120471684] [2024-12-02 11:41:59,752 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 11:41:59,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 11:41:59,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:41:59,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 11:41:59,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-12-02 11:41:59,754 INFO L87 Difference]: Start difference. First operand 797 states and 1057 transitions. Second operand has 16 states, 14 states have (on average 9.285714285714286) internal successors, (130), 16 states have internal predecessors, (130), 7 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) [2024-12-02 11:42:01,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:01,305 INFO L93 Difference]: Finished difference Result 1537 states and 2027 transitions. [2024-12-02 11:42:01,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 11:42:01,306 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 9.285714285714286) internal successors, (130), 16 states have internal predecessors, (130), 7 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) Word has length 148 [2024-12-02 11:42:01,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:01,308 INFO L225 Difference]: With dead ends: 1537 [2024-12-02 11:42:01,308 INFO L226 Difference]: Without dead ends: 838 [2024-12-02 11:42:01,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:42:01,309 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 681 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:01,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 776 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 11:42:01,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-12-02 11:42:01,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 797. [2024-12-02 11:42:01,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 697 states have (on average 1.272596843615495) internal successors, (887), 703 states have internal predecessors, (887), 83 states have call successors, (83), 16 states have call predecessors, (83), 16 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-12-02 11:42:01,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1053 transitions. [2024-12-02 11:42:01,352 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1053 transitions. Word has length 148 [2024-12-02 11:42:01,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:01,352 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 1053 transitions. [2024-12-02 11:42:01,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 9.285714285714286) internal successors, (130), 16 states have internal predecessors, (130), 7 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 5 states have call predecessors, (34), 7 states have call successors, (34) [2024-12-02 11:42:01,352 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1053 transitions. [2024-12-02 11:42:01,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 11:42:01,353 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:01,353 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:01,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:01,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:01,554 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:01,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:01,554 INFO L85 PathProgramCache]: Analyzing trace with hash 251949574, now seen corresponding path program 1 times [2024-12-02 11:42:01,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:01,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316908757] [2024-12-02 11:42:01,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:01,555 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 11:42:01,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:01,556 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:01,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:01,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 11:42:01,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:01,936 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:01,936 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:01,936 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:01,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316908757] [2024-12-02 11:42:01,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316908757] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:01,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:01,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:42:01,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784495133] [2024-12-02 11:42:01,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:01,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:42:01,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:01,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:42:01,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:42:01,937 INFO L87 Difference]: Start difference. First operand 797 states and 1053 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:02,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:02,631 INFO L93 Difference]: Finished difference Result 2219 states and 2923 transitions. [2024-12-02 11:42:02,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 11:42:02,632 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-12-02 11:42:02,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:02,635 INFO L225 Difference]: With dead ends: 2219 [2024-12-02 11:42:02,635 INFO L226 Difference]: Without dead ends: 1503 [2024-12-02 11:42:02,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:42:02,636 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 294 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:02,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 811 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:42:02,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2024-12-02 11:42:02,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1479. [2024-12-02 11:42:02,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1292 states have (on average 1.2546439628482973) internal successors, (1621), 1305 states have internal predecessors, (1621), 155 states have call successors, (155), 31 states have call predecessors, (155), 31 states have return successors, (155), 142 states have call predecessors, (155), 155 states have call successors, (155) [2024-12-02 11:42:02,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 1931 transitions. [2024-12-02 11:42:02,727 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 1931 transitions. Word has length 150 [2024-12-02 11:42:02,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:02,728 INFO L471 AbstractCegarLoop]: Abstraction has 1479 states and 1931 transitions. [2024-12-02 11:42:02,728 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:02,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 1931 transitions. [2024-12-02 11:42:02,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 11:42:02,729 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:02,729 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:02,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:02,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:02,930 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:02,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:02,930 INFO L85 PathProgramCache]: Analyzing trace with hash -703104489, now seen corresponding path program 1 times [2024-12-02 11:42:02,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:02,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730709100] [2024-12-02 11:42:02,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:02,931 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 11:42:02,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:02,932 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:02,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-12-02 11:42:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:03,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 11:42:03,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:03,201 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 11:42:03,375 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 30 treesize of output 23 [2024-12-02 11:42:03,533 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:03,533 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 67 treesize of output 31 [2024-12-02 11:42:03,560 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-12-02 11:42:03,560 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:03,560 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:03,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730709100] [2024-12-02 11:42:03,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730709100] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:03,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:03,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:42:03,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100858800] [2024-12-02 11:42:03,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:03,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:42:03,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:03,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:42:03,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:42:03,561 INFO L87 Difference]: Start difference. First operand 1479 states and 1931 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:42:03,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:03,847 INFO L93 Difference]: Finished difference Result 1561 states and 2020 transitions. [2024-12-02 11:42:03,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:42:03,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2024-12-02 11:42:03,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:03,851 INFO L225 Difference]: With dead ends: 1561 [2024-12-02 11:42:03,851 INFO L226 Difference]: Without dead ends: 1559 [2024-12-02 11:42:03,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:42:03,852 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 177 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:03,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 784 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:42:03,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2024-12-02 11:42:03,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1559. [2024-12-02 11:42:03,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1364 states have (on average 1.2412023460410557) internal successors, (1693), 1377 states have internal predecessors, (1693), 155 states have call successors, (155), 39 states have call predecessors, (155), 39 states have return successors, (155), 142 states have call predecessors, (155), 155 states have call successors, (155) [2024-12-02 11:42:03,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2003 transitions. [2024-12-02 11:42:03,979 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2003 transitions. Word has length 150 [2024-12-02 11:42:03,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:03,980 INFO L471 AbstractCegarLoop]: Abstraction has 1559 states and 2003 transitions. [2024-12-02 11:42:03,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:42:03,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2003 transitions. [2024-12-02 11:42:03,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 11:42:03,981 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:03,981 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:03,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-12-02 11:42:04,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:04,182 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:04,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:04,182 INFO L85 PathProgramCache]: Analyzing trace with hash -701257447, now seen corresponding path program 1 times [2024-12-02 11:42:04,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:04,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445475264] [2024-12-02 11:42:04,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:04,183 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 11:42:04,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:04,185 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:04,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:04,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 11:42:04,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:04,501 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 11:42:05,159 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 121 treesize of output 61 [2024-12-02 11:42:05,374 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:05,374 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 203 treesize of output 77 [2024-12-02 11:42:05,420 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-12-02 11:42:05,420 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:42:05,625 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:05,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445475264] [2024-12-02 11:42:05,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [445475264] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:42:05,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [205975353] [2024-12-02 11:42:05,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:05,626 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 11:42:05,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 11:42:05,628 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 11:42:05,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-12-02 11:42:06,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:06,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 11:42:06,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:06,442 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 11:42:07,325 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 103 treesize of output 59 [2024-12-02 11:42:07,650 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:07,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 77 [2024-12-02 11:42:07,665 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-12-02 11:42:07,665 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:42:07,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [205975353] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:42:07,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 11:42:07,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2024-12-02 11:42:07,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822427035] [2024-12-02 11:42:07,832 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 11:42:07,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 11:42:07,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:07,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 11:42:07,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:42:07,832 INFO L87 Difference]: Start difference. First operand 1559 states and 2003 transitions. Second operand has 16 states, 16 states have (on average 8.5) internal successors, (136), 15 states have internal predecessors, (136), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2024-12-02 11:42:08,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:08,947 INFO L93 Difference]: Finished difference Result 4550 states and 5818 transitions. [2024-12-02 11:42:08,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 11:42:08,948 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.5) internal successors, (136), 15 states have internal predecessors, (136), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 150 [2024-12-02 11:42:08,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:08,953 INFO L225 Difference]: With dead ends: 4550 [2024-12-02 11:42:08,953 INFO L226 Difference]: Without dead ends: 3106 [2024-12-02 11:42:08,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 365 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:42:08,955 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 518 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:08,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 1623 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:42:08,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2024-12-02 11:42:09,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 3096. [2024-12-02 11:42:09,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3096 states, 2704 states have (on average 1.2307692307692308) internal successors, (3328), 2738 states have internal predecessors, (3328), 306 states have call successors, (306), 85 states have call predecessors, (306), 85 states have return successors, (306), 272 states have call predecessors, (306), 306 states have call successors, (306) [2024-12-02 11:42:09,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 3940 transitions. [2024-12-02 11:42:09,132 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 3940 transitions. Word has length 150 [2024-12-02 11:42:09,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:09,133 INFO L471 AbstractCegarLoop]: Abstraction has 3096 states and 3940 transitions. [2024-12-02 11:42:09,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.5) internal successors, (136), 15 states have internal predecessors, (136), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2024-12-02 11:42:09,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 3940 transitions. [2024-12-02 11:42:09,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 11:42:09,135 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:09,135 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:09,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2024-12-02 11:42:09,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:09,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:09,536 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:09,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:09,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1753808285, now seen corresponding path program 1 times [2024-12-02 11:42:09,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:09,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583161760] [2024-12-02 11:42:09,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:09,537 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 11:42:09,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:09,538 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:09,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:09,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 11:42:09,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:09,768 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 20 treesize of output 16 [2024-12-02 11:42:09,830 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 24 treesize of output 16 [2024-12-02 11:42:09,846 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 25 treesize of output 13 [2024-12-02 11:42:09,906 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:09,906 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:09,906 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:09,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583161760] [2024-12-02 11:42:09,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583161760] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:09,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:09,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:42:09,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399076367] [2024-12-02 11:42:09,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:09,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:42:09,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:09,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:42:09,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:42:09,907 INFO L87 Difference]: Start difference. First operand 3096 states and 3940 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:10,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:10,834 INFO L93 Difference]: Finished difference Result 6124 states and 7786 transitions. [2024-12-02 11:42:10,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 11:42:10,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-12-02 11:42:10,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:10,843 INFO L225 Difference]: With dead ends: 6124 [2024-12-02 11:42:10,843 INFO L226 Difference]: Without dead ends: 3238 [2024-12-02 11:42:10,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:42:10,846 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 133 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:10,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1452 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:42:10,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3238 states. [2024-12-02 11:42:11,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3238 to 3216. [2024-12-02 11:42:11,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 2824 states have (on average 1.2209631728045325) internal successors, (3448), 2858 states have internal predecessors, (3448), 306 states have call successors, (306), 85 states have call predecessors, (306), 85 states have return successors, (306), 272 states have call predecessors, (306), 306 states have call successors, (306) [2024-12-02 11:42:11,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 4060 transitions. [2024-12-02 11:42:11,113 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 4060 transitions. Word has length 150 [2024-12-02 11:42:11,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:11,113 INFO L471 AbstractCegarLoop]: Abstraction has 3216 states and 4060 transitions. [2024-12-02 11:42:11,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:11,113 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 4060 transitions. [2024-12-02 11:42:11,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 11:42:11,115 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:11,115 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:11,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:11,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:11,315 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:11,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:11,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1167002271, now seen corresponding path program 1 times [2024-12-02 11:42:11,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:11,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926646192] [2024-12-02 11:42:11,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:11,316 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 11:42:11,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:11,318 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:11,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:11,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:42:11,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:11,576 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 10 [2024-12-02 11:42:11,587 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:11,587 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:11,587 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:11,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926646192] [2024-12-02 11:42:11,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926646192] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:11,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:11,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:42:11,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598046625] [2024-12-02 11:42:11,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:11,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:42:11,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:11,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:42:11,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:42:11,589 INFO L87 Difference]: Start difference. First operand 3216 states and 4060 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:12,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:12,055 INFO L93 Difference]: Finished difference Result 6133 states and 7738 transitions. [2024-12-02 11:42:12,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:42:12,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-12-02 11:42:12,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:12,062 INFO L225 Difference]: With dead ends: 6133 [2024-12-02 11:42:12,062 INFO L226 Difference]: Without dead ends: 3127 [2024-12-02 11:42:12,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 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 11:42:12,064 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 127 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:12,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 471 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:42:12,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3127 states. [2024-12-02 11:42:12,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3127 to 3109. [2024-12-02 11:42:12,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 2717 states have (on average 1.2116304747883695) internal successors, (3292), 2751 states have internal predecessors, (3292), 306 states have call successors, (306), 85 states have call predecessors, (306), 85 states have return successors, (306), 272 states have call predecessors, (306), 306 states have call successors, (306) [2024-12-02 11:42:12,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 3904 transitions. [2024-12-02 11:42:12,238 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 3904 transitions. Word has length 150 [2024-12-02 11:42:12,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:12,238 INFO L471 AbstractCegarLoop]: Abstraction has 3109 states and 3904 transitions. [2024-12-02 11:42:12,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:12,238 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 3904 transitions. [2024-12-02 11:42:12,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 11:42:12,239 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:12,240 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:12,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:12,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:12,440 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:12,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:12,440 INFO L85 PathProgramCache]: Analyzing trace with hash 137336518, now seen corresponding path program 1 times [2024-12-02 11:42:12,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:12,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [249683796] [2024-12-02 11:42:12,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:12,441 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 11:42:12,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:12,442 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:12,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:12,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 11:42:12,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:12,823 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:12,823 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:12,823 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:12,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [249683796] [2024-12-02 11:42:12,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [249683796] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:12,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:12,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:42:12,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035922752] [2024-12-02 11:42:12,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:12,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:42:12,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:12,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:42:12,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:42:12,825 INFO L87 Difference]: Start difference. First operand 3109 states and 3904 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:13,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:13,615 INFO L93 Difference]: Finished difference Result 6036 states and 7583 transitions. [2024-12-02 11:42:13,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:42:13,615 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-12-02 11:42:13,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:13,623 INFO L225 Difference]: With dead ends: 6036 [2024-12-02 11:42:13,623 INFO L226 Difference]: Without dead ends: 3137 [2024-12-02 11:42:13,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:42:13,626 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 244 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:13,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 791 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:42:13,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3137 states. [2024-12-02 11:42:13,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3137 to 3093. [2024-12-02 11:42:13,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3093 states, 2701 states have (on average 1.2069603850425767) internal successors, (3260), 2735 states have internal predecessors, (3260), 306 states have call successors, (306), 85 states have call predecessors, (306), 85 states have return successors, (306), 272 states have call predecessors, (306), 306 states have call successors, (306) [2024-12-02 11:42:13,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 3872 transitions. [2024-12-02 11:42:13,809 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 3872 transitions. Word has length 150 [2024-12-02 11:42:13,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:13,809 INFO L471 AbstractCegarLoop]: Abstraction has 3093 states and 3872 transitions. [2024-12-02 11:42:13,809 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:13,810 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 3872 transitions. [2024-12-02 11:42:13,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 11:42:13,811 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:13,811 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:13,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:14,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:14,011 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:14,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:14,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1944398367, now seen corresponding path program 1 times [2024-12-02 11:42:14,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:14,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813009183] [2024-12-02 11:42:14,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:14,012 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 11:42:14,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:14,014 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:14,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:14,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 11:42:14,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:14,276 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 11:42:14,310 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 28 treesize of output 12 [2024-12-02 11:42:14,353 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 11:42:14,426 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 27 treesize of output 11 [2024-12-02 11:42:14,492 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 27 treesize of output 11 [2024-12-02 11:42:14,562 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:14,562 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 30 treesize of output 32 [2024-12-02 11:42:14,714 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:14,714 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 65 treesize of output 56 [2024-12-02 11:42:14,805 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 15 treesize of output 7 [2024-12-02 11:42:15,520 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 377 proven. 12 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-12-02 11:42:15,520 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:42:16,238 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:16,238 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:16,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813009183] [2024-12-02 11:42:16,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813009183] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:42:16,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:42:16,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [18] total 29 [2024-12-02 11:42:16,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642531385] [2024-12-02 11:42:16,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:16,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 11:42:16,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:16,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:42:16,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=623, Unknown=0, NotChecked=0, Total=812 [2024-12-02 11:42:16,240 INFO L87 Difference]: Start difference. First operand 3093 states and 3872 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:17,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:17,949 INFO L93 Difference]: Finished difference Result 7781 states and 9804 transitions. [2024-12-02 11:42:17,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 11:42:17,950 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-12-02 11:42:17,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:17,964 INFO L225 Difference]: With dead ends: 7781 [2024-12-02 11:42:17,964 INFO L226 Difference]: Without dead ends: 5869 [2024-12-02 11:42:17,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=305, Invalid=885, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 11:42:17,968 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 482 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:17,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 1608 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 11:42:17,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5869 states. [2024-12-02 11:42:18,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5869 to 4743. [2024-12-02 11:42:18,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4743 states, 4254 states have (on average 1.2259050305594734) internal successors, (5215), 4313 states have internal predecessors, (5215), 376 states have call successors, (376), 112 states have call predecessors, (376), 112 states have return successors, (376), 317 states have call predecessors, (376), 376 states have call successors, (376) [2024-12-02 11:42:18,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4743 states to 4743 states and 5967 transitions. [2024-12-02 11:42:18,268 INFO L78 Accepts]: Start accepts. Automaton has 4743 states and 5967 transitions. Word has length 150 [2024-12-02 11:42:18,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:18,268 INFO L471 AbstractCegarLoop]: Abstraction has 4743 states and 5967 transitions. [2024-12-02 11:42:18,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:18,269 INFO L276 IsEmpty]: Start isEmpty. Operand 4743 states and 5967 transitions. [2024-12-02 11:42:18,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 11:42:18,272 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:18,272 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:18,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:18,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:18,473 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:18,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:18,473 INFO L85 PathProgramCache]: Analyzing trace with hash 762221027, now seen corresponding path program 1 times [2024-12-02 11:42:18,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:18,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058235403] [2024-12-02 11:42:18,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:18,473 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 11:42:18,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:18,475 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:18,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:18,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 11:42:18,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:18,735 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 11:42:18,737 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 11:42:18,739 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 11:42:18,763 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 27 treesize of output 11 [2024-12-02 11:42:18,785 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 27 treesize of output 11 [2024-12-02 11:42:18,809 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 11:42:18,833 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 21 treesize of output 21 [2024-12-02 11:42:18,870 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 15 treesize of output 7 [2024-12-02 11:42:18,988 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:18,988 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 22 [2024-12-02 11:42:19,098 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-12-02 11:42:19,098 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:42:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:19,453 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:19,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2058235403] [2024-12-02 11:42:19,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2058235403] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:42:19,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:42:19,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 22 [2024-12-02 11:42:19,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8498754] [2024-12-02 11:42:19,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:19,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:42:19,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:19,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:42:19,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-12-02 11:42:19,455 INFO L87 Difference]: Start difference. First operand 4743 states and 5967 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:20,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:20,913 INFO L93 Difference]: Finished difference Result 8881 states and 11216 transitions. [2024-12-02 11:42:20,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 11:42:20,914 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-12-02 11:42:20,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:20,929 INFO L225 Difference]: With dead ends: 8881 [2024-12-02 11:42:20,929 INFO L226 Difference]: Without dead ends: 5407 [2024-12-02 11:42:20,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=124, Invalid=806, Unknown=0, NotChecked=0, Total=930 [2024-12-02 11:42:20,935 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 251 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:20,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1584 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 11:42:20,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5407 states. [2024-12-02 11:42:21,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5407 to 4877. [2024-12-02 11:42:21,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4877 states, 4388 states have (on average 1.2331358249772106) internal successors, (5411), 4447 states have internal predecessors, (5411), 376 states have call successors, (376), 112 states have call predecessors, (376), 112 states have return successors, (376), 317 states have call predecessors, (376), 376 states have call successors, (376) [2024-12-02 11:42:21,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4877 states to 4877 states and 6163 transitions. [2024-12-02 11:42:21,354 INFO L78 Accepts]: Start accepts. Automaton has 4877 states and 6163 transitions. Word has length 150 [2024-12-02 11:42:21,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:21,354 INFO L471 AbstractCegarLoop]: Abstraction has 4877 states and 6163 transitions. [2024-12-02 11:42:21,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 11 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:21,354 INFO L276 IsEmpty]: Start isEmpty. Operand 4877 states and 6163 transitions. [2024-12-02 11:42:21,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 11:42:21,357 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:21,357 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:21,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:21,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:21,557 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:21,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:21,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1872011809, now seen corresponding path program 1 times [2024-12-02 11:42:21,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:21,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782187282] [2024-12-02 11:42:21,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:21,558 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 11:42:21,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:21,560 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:21,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:21,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 11:42:21,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:21,843 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 11:42:21,849 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 21 treesize of output 21 [2024-12-02 11:42:21,884 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:21,884 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 41 treesize of output 37 [2024-12-02 11:42:22,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:22,106 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 58 treesize of output 22 [2024-12-02 11:42:22,175 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:22,176 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:22,176 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:22,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782187282] [2024-12-02 11:42:22,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1782187282] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:22,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:22,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 11:42:22,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672961099] [2024-12-02 11:42:22,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:22,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 11:42:22,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:22,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:42:22,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:42:22,177 INFO L87 Difference]: Start difference. First operand 4877 states and 6163 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:23,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:23,707 INFO L93 Difference]: Finished difference Result 9848 states and 12454 transitions. [2024-12-02 11:42:23,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:42:23,708 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-12-02 11:42:23,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:23,720 INFO L225 Difference]: With dead ends: 9848 [2024-12-02 11:42:23,720 INFO L226 Difference]: Without dead ends: 6258 [2024-12-02 11:42:23,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:42:23,724 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 209 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:23,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 1937 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 11:42:23,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6258 states. [2024-12-02 11:42:23,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6258 to 5047. [2024-12-02 11:42:23,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5047 states, 4558 states have (on average 1.2419921017990347) internal successors, (5661), 4617 states have internal predecessors, (5661), 376 states have call successors, (376), 112 states have call predecessors, (376), 112 states have return successors, (376), 317 states have call predecessors, (376), 376 states have call successors, (376) [2024-12-02 11:42:23,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5047 states to 5047 states and 6413 transitions. [2024-12-02 11:42:23,997 INFO L78 Accepts]: Start accepts. Automaton has 5047 states and 6413 transitions. Word has length 150 [2024-12-02 11:42:23,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:23,997 INFO L471 AbstractCegarLoop]: Abstraction has 5047 states and 6413 transitions. [2024-12-02 11:42:23,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:23,998 INFO L276 IsEmpty]: Start isEmpty. Operand 5047 states and 6413 transitions. [2024-12-02 11:42:24,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 11:42:24,000 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:24,000 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:24,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:24,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:24,200 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:24,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:24,201 INFO L85 PathProgramCache]: Analyzing trace with hash 834607585, now seen corresponding path program 1 times [2024-12-02 11:42:24,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:24,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077694628] [2024-12-02 11:42:24,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:24,201 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 11:42:24,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:24,203 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:24,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:24,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 11:42:24,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:24,532 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 11:42:24,564 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 23 treesize of output 22 [2024-12-02 11:42:24,695 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 11:42:24,863 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 27 treesize of output 11 [2024-12-02 11:42:24,963 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 27 treesize of output 11 [2024-12-02 11:42:25,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:25,104 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 11:42:25,238 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:25,238 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 59 treesize of output 45 [2024-12-02 11:42:25,369 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 15 treesize of output 7 [2024-12-02 11:42:25,676 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:25,676 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 62 treesize of output 30 [2024-12-02 11:42:25,721 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 419 proven. 12 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-12-02 11:42:25,721 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:42:26,083 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:26,083 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:26,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077694628] [2024-12-02 11:42:26,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1077694628] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:42:26,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:42:26,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 20 [2024-12-02 11:42:26,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027388577] [2024-12-02 11:42:26,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:26,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:42:26,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:26,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:42:26,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:42:26,085 INFO L87 Difference]: Start difference. First operand 5047 states and 6413 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:27,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:27,317 INFO L93 Difference]: Finished difference Result 10486 states and 13301 transitions. [2024-12-02 11:42:27,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:42:27,318 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-12-02 11:42:27,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:27,330 INFO L225 Difference]: With dead ends: 10486 [2024-12-02 11:42:27,331 INFO L226 Difference]: Without dead ends: 6726 [2024-12-02 11:42:27,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2024-12-02 11:42:27,335 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 343 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:27,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 974 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 11:42:27,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6726 states. [2024-12-02 11:42:27,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6726 to 5102. [2024-12-02 11:42:27,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5102 states, 4613 states have (on average 1.2497290266637764) internal successors, (5765), 4672 states have internal predecessors, (5765), 376 states have call successors, (376), 112 states have call predecessors, (376), 112 states have return successors, (376), 317 states have call predecessors, (376), 376 states have call successors, (376) [2024-12-02 11:42:27,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5102 states to 5102 states and 6517 transitions. [2024-12-02 11:42:27,653 INFO L78 Accepts]: Start accepts. Automaton has 5102 states and 6517 transitions. Word has length 150 [2024-12-02 11:42:27,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:27,654 INFO L471 AbstractCegarLoop]: Abstraction has 5102 states and 6517 transitions. [2024-12-02 11:42:27,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:27,654 INFO L276 IsEmpty]: Start isEmpty. Operand 5102 states and 6517 transitions. [2024-12-02 11:42:27,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 11:42:27,656 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:27,657 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:27,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:27,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:27,857 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:27,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:27,857 INFO L85 PathProgramCache]: Analyzing trace with hash -213210341, now seen corresponding path program 1 times [2024-12-02 11:42:27,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:27,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685388404] [2024-12-02 11:42:27,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:27,858 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 11:42:27,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:27,860 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:27,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:28,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 11:42:28,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:28,158 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-12-02 11:42:28,159 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:28,159 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:28,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685388404] [2024-12-02 11:42:28,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685388404] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:28,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:28,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:42:28,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733717710] [2024-12-02 11:42:28,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:28,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:42:28,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:28,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:42:28,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:42:28,160 INFO L87 Difference]: Start difference. First operand 5102 states and 6517 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:42:28,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:28,571 INFO L93 Difference]: Finished difference Result 10023 states and 12798 transitions. [2024-12-02 11:42:28,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:42:28,572 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2024-12-02 11:42:28,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:28,582 INFO L225 Difference]: With dead ends: 10023 [2024-12-02 11:42:28,582 INFO L226 Difference]: Without dead ends: 5102 [2024-12-02 11:42:28,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 147 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 11:42:28,588 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 451 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 11:42:28,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 451 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:42:28,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5102 states. [2024-12-02 11:42:28,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5102 to 5102. [2024-12-02 11:42:28,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5102 states, 4613 states have (on average 1.2466941252980708) internal successors, (5751), 4672 states have internal predecessors, (5751), 376 states have call successors, (376), 112 states have call predecessors, (376), 112 states have return successors, (376), 317 states have call predecessors, (376), 376 states have call successors, (376) [2024-12-02 11:42:28,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5102 states to 5102 states and 6503 transitions. [2024-12-02 11:42:28,870 INFO L78 Accepts]: Start accepts. Automaton has 5102 states and 6503 transitions. Word has length 150 [2024-12-02 11:42:28,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:28,871 INFO L471 AbstractCegarLoop]: Abstraction has 5102 states and 6503 transitions. [2024-12-02 11:42:28,871 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:42:28,871 INFO L276 IsEmpty]: Start isEmpty. Operand 5102 states and 6503 transitions. [2024-12-02 11:42:28,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:42:28,872 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:28,872 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:28,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:29,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:29,073 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:29,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:29,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1325830879, now seen corresponding path program 1 times [2024-12-02 11:42:29,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:29,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1252622902] [2024-12-02 11:42:29,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:29,074 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 11:42:29,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:29,076 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:29,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:29,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 11:42:29,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:29,420 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:29,421 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:29,421 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:29,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1252622902] [2024-12-02 11:42:29,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1252622902] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:29,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:29,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:42:29,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452186808] [2024-12-02 11:42:29,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:29,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:42:29,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:29,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:42:29,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:42:29,422 INFO L87 Difference]: Start difference. First operand 5102 states and 6503 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:30,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:30,037 INFO L93 Difference]: Finished difference Result 11622 states and 14835 transitions. [2024-12-02 11:42:30,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:42:30,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-12-02 11:42:30,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:30,050 INFO L225 Difference]: With dead ends: 11622 [2024-12-02 11:42:30,050 INFO L226 Difference]: Without dead ends: 6858 [2024-12-02 11:42:30,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:42:30,055 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 75 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:30,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 919 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:42:30,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6858 states. [2024-12-02 11:42:30,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6858 to 5958. [2024-12-02 11:42:30,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5958 states, 5450 states have (on average 1.261834862385321) internal successors, (6877), 5514 states have internal predecessors, (6877), 390 states have call successors, (390), 117 states have call predecessors, (390), 117 states have return successors, (390), 326 states have call predecessors, (390), 390 states have call successors, (390) [2024-12-02 11:42:30,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5958 states to 5958 states and 7657 transitions. [2024-12-02 11:42:30,506 INFO L78 Accepts]: Start accepts. Automaton has 5958 states and 7657 transitions. Word has length 152 [2024-12-02 11:42:30,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:30,506 INFO L471 AbstractCegarLoop]: Abstraction has 5958 states and 7657 transitions. [2024-12-02 11:42:30,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:30,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5958 states and 7657 transitions. [2024-12-02 11:42:30,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:42:30,508 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:30,508 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:30,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:30,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:30,709 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:30,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:30,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1948068063, now seen corresponding path program 1 times [2024-12-02 11:42:30,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:30,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581142976] [2024-12-02 11:42:30,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:30,709 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 11:42:30,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:30,711 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:30,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:30,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 11:42:30,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:31,534 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:31,535 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 85 treesize of output 35 [2024-12-02 11:42:31,617 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:31,617 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:31,617 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:31,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581142976] [2024-12-02 11:42:31,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [581142976] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:31,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:31,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 11:42:31,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456841440] [2024-12-02 11:42:31,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:31,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 11:42:31,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:31,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:42:31,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:42:31,619 INFO L87 Difference]: Start difference. First operand 5958 states and 7657 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:33,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:33,347 INFO L93 Difference]: Finished difference Result 12086 states and 15464 transitions. [2024-12-02 11:42:33,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:42:33,348 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-12-02 11:42:33,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:33,359 INFO L225 Difference]: With dead ends: 12086 [2024-12-02 11:42:33,359 INFO L226 Difference]: Without dead ends: 6550 [2024-12-02 11:42:33,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-12-02 11:42:33,364 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 330 mSDsluCounter, 1280 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:33,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1478 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 11:42:33,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6550 states. [2024-12-02 11:42:33,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6550 to 5950. [2024-12-02 11:42:33,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5950 states, 5442 states have (on average 1.2600147004777655) internal successors, (6857), 5506 states have internal predecessors, (6857), 390 states have call successors, (390), 117 states have call predecessors, (390), 117 states have return successors, (390), 326 states have call predecessors, (390), 390 states have call successors, (390) [2024-12-02 11:42:33,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5950 states to 5950 states and 7637 transitions. [2024-12-02 11:42:33,712 INFO L78 Accepts]: Start accepts. Automaton has 5950 states and 7637 transitions. Word has length 152 [2024-12-02 11:42:33,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:33,713 INFO L471 AbstractCegarLoop]: Abstraction has 5950 states and 7637 transitions. [2024-12-02 11:42:33,713 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:33,713 INFO L276 IsEmpty]: Start isEmpty. Operand 5950 states and 7637 transitions. [2024-12-02 11:42:33,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:42:33,714 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:33,714 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:33,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 11:42:33,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:33,915 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:33,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:33,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1631449195, now seen corresponding path program 1 times [2024-12-02 11:42:33,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:33,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979252022] [2024-12-02 11:42:33,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:33,915 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 11:42:33,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:33,917 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:33,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:34,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 11:42:34,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:34,224 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:34,224 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:34,224 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:34,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979252022] [2024-12-02 11:42:34,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979252022] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:34,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:34,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:42:34,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398113742] [2024-12-02 11:42:34,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:34,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:42:34,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:34,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:42:34,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:42:34,226 INFO L87 Difference]: Start difference. First operand 5950 states and 7637 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:34,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:34,896 INFO L93 Difference]: Finished difference Result 13094 states and 16751 transitions. [2024-12-02 11:42:34,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:42:34,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-12-02 11:42:34,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:34,909 INFO L225 Difference]: With dead ends: 13094 [2024-12-02 11:42:34,909 INFO L226 Difference]: Without dead ends: 7566 [2024-12-02 11:42:34,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:42:34,915 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 76 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:34,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 776 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:42:34,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7566 states. [2024-12-02 11:42:35,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7566 to 6614. [2024-12-02 11:42:35,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6614 states, 6087 states have (on average 1.2635124034828322) internal successors, (7691), 6156 states have internal predecessors, (7691), 404 states have call successors, (404), 122 states have call predecessors, (404), 122 states have return successors, (404), 335 states have call predecessors, (404), 404 states have call successors, (404) [2024-12-02 11:42:35,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6614 states to 6614 states and 8499 transitions. [2024-12-02 11:42:35,568 INFO L78 Accepts]: Start accepts. Automaton has 6614 states and 8499 transitions. Word has length 152 [2024-12-02 11:42:35,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:35,568 INFO L471 AbstractCegarLoop]: Abstraction has 6614 states and 8499 transitions. [2024-12-02 11:42:35,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:35,569 INFO L276 IsEmpty]: Start isEmpty. Operand 6614 states and 8499 transitions. [2024-12-02 11:42:35,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:42:35,571 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:35,571 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:35,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:35,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:35,772 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:35,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:35,772 INFO L85 PathProgramCache]: Analyzing trace with hash -362695511, now seen corresponding path program 1 times [2024-12-02 11:42:35,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:35,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663505018] [2024-12-02 11:42:35,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:35,773 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 11:42:35,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:35,774 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:35,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-12-02 11:42:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:36,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 11:42:36,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:36,391 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:36,392 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 95 treesize of output 41 [2024-12-02 11:42:36,422 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:36,422 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:36,423 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:36,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663505018] [2024-12-02 11:42:36,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663505018] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:36,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:36,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:42:36,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351920488] [2024-12-02 11:42:36,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:36,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:42:36,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:36,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:42:36,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:42:36,424 INFO L87 Difference]: Start difference. First operand 6614 states and 8499 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:37,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:37,948 INFO L93 Difference]: Finished difference Result 14375 states and 18389 transitions. [2024-12-02 11:42:37,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:42:37,949 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-12-02 11:42:37,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:37,959 INFO L225 Difference]: With dead ends: 14375 [2024-12-02 11:42:37,959 INFO L226 Difference]: Without dead ends: 8211 [2024-12-02 11:42:37,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:42:37,965 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 349 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:37,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1310 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 11:42:37,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8211 states. [2024-12-02 11:42:38,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8211 to 6971. [2024-12-02 11:42:38,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6971 states, 6444 states have (on average 1.2652079453755432) internal successors, (8153), 6513 states have internal predecessors, (8153), 404 states have call successors, (404), 122 states have call predecessors, (404), 122 states have return successors, (404), 335 states have call predecessors, (404), 404 states have call successors, (404) [2024-12-02 11:42:38,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6971 states to 6971 states and 8961 transitions. [2024-12-02 11:42:38,277 INFO L78 Accepts]: Start accepts. Automaton has 6971 states and 8961 transitions. Word has length 152 [2024-12-02 11:42:38,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:38,277 INFO L471 AbstractCegarLoop]: Abstraction has 6971 states and 8961 transitions. [2024-12-02 11:42:38,277 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:38,277 INFO L276 IsEmpty]: Start isEmpty. Operand 6971 states and 8961 transitions. [2024-12-02 11:42:38,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:42:38,279 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:38,279 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:38,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-12-02 11:42:38,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:38,479 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:38,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:38,480 INFO L85 PathProgramCache]: Analyzing trace with hash -624231005, now seen corresponding path program 1 times [2024-12-02 11:42:38,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:38,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517231122] [2024-12-02 11:42:38,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:38,480 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 11:42:38,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:38,481 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:38,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:38,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 11:42:38,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:38,976 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:38,976 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 98 treesize of output 44 [2024-12-02 11:42:39,018 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:39,019 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:39,019 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:39,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517231122] [2024-12-02 11:42:39,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517231122] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:39,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:39,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:42:39,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593441049] [2024-12-02 11:42:39,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:39,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:42:39,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:39,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:42:39,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:42:39,020 INFO L87 Difference]: Start difference. First operand 6971 states and 8961 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:40,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:40,427 INFO L93 Difference]: Finished difference Result 13452 states and 17289 transitions. [2024-12-02 11:42:40,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:42:40,427 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-12-02 11:42:40,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:40,440 INFO L225 Difference]: With dead ends: 13452 [2024-12-02 11:42:40,441 INFO L226 Difference]: Without dead ends: 6859 [2024-12-02 11:42:40,448 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:42:40,448 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 343 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:40,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 1593 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 11:42:40,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6859 states. [2024-12-02 11:42:40,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6859 to 6789. [2024-12-02 11:42:40,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6789 states, 6243 states have (on average 1.26045170591062) internal successors, (7869), 6313 states have internal predecessors, (7869), 418 states have call successors, (418), 127 states have call predecessors, (418), 127 states have return successors, (418), 348 states have call predecessors, (418), 418 states have call successors, (418) [2024-12-02 11:42:40,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6789 states to 6789 states and 8705 transitions. [2024-12-02 11:42:40,968 INFO L78 Accepts]: Start accepts. Automaton has 6789 states and 8705 transitions. Word has length 152 [2024-12-02 11:42:40,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:40,968 INFO L471 AbstractCegarLoop]: Abstraction has 6789 states and 8705 transitions. [2024-12-02 11:42:40,968 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:40,968 INFO L276 IsEmpty]: Start isEmpty. Operand 6789 states and 8705 transitions. [2024-12-02 11:42:40,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:42:40,970 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:40,970 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:40,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:41,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:41,171 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:41,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:41,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1961918227, now seen corresponding path program 1 times [2024-12-02 11:42:41,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:41,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138951254] [2024-12-02 11:42:41,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:41,171 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 11:42:41,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:41,173 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:41,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:41,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 11:42:41,440 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:41,916 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:41,916 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:41,916 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:41,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138951254] [2024-12-02 11:42:41,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138951254] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:41,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:41,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:42:41,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433796640] [2024-12-02 11:42:41,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:41,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:42:41,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:41,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:42:41,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:42:41,918 INFO L87 Difference]: Start difference. First operand 6789 states and 8705 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:43,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:43,229 INFO L93 Difference]: Finished difference Result 13728 states and 17505 transitions. [2024-12-02 11:42:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:42:43,229 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-12-02 11:42:43,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:43,238 INFO L225 Difference]: With dead ends: 13728 [2024-12-02 11:42:43,238 INFO L226 Difference]: Without dead ends: 7365 [2024-12-02 11:42:43,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:42:43,244 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 320 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:43,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 1309 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 11:42:43,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7365 states. [2024-12-02 11:42:43,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7365 to 5879. [2024-12-02 11:42:43,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5879 states, 5420 states have (on average 1.2736162361623615) internal successors, (6903), 5469 states have internal predecessors, (6903), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-12-02 11:42:43,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 7599 transitions. [2024-12-02 11:42:43,576 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 7599 transitions. Word has length 152 [2024-12-02 11:42:43,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:43,576 INFO L471 AbstractCegarLoop]: Abstraction has 5879 states and 7599 transitions. [2024-12-02 11:42:43,576 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:43,576 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 7599 transitions. [2024-12-02 11:42:43,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:42:43,578 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:43,578 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:43,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Ended with exit code 0 [2024-12-02 11:42:43,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:43,778 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:43,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:43,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1903405306, now seen corresponding path program 1 times [2024-12-02 11:42:43,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:43,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27925740] [2024-12-02 11:42:43,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:43,779 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 11:42:43,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:43,781 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:43,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:44,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 11:42:44,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:44,076 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 11:42:44,102 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 28 treesize of output 12 [2024-12-02 11:42:44,157 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 11:42:44,239 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 27 treesize of output 11 [2024-12-02 11:42:44,300 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 27 treesize of output 11 [2024-12-02 11:42:44,383 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 28 treesize of output 12 [2024-12-02 11:42:44,428 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 30 treesize of output 25 [2024-12-02 11:42:44,470 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 15 treesize of output 7 [2024-12-02 11:42:44,560 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:44,561 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 25 [2024-12-02 11:42:44,589 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 377 proven. 12 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-12-02 11:42:44,589 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:42:44,789 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:44,789 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:44,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27925740] [2024-12-02 11:42:44,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27925740] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:42:44,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:42:44,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2024-12-02 11:42:44,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739918785] [2024-12-02 11:42:44,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:44,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:42:44,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:44,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:42:44,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:42:44,791 INFO L87 Difference]: Start difference. First operand 5879 states and 7599 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:45,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:45,664 INFO L93 Difference]: Finished difference Result 12174 states and 15672 transitions. [2024-12-02 11:42:45,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:42:45,682 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-12-02 11:42:45,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:45,689 INFO L225 Difference]: With dead ends: 12174 [2024-12-02 11:42:45,689 INFO L226 Difference]: Without dead ends: 7839 [2024-12-02 11:42:45,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:42:45,692 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 273 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:45,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 772 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:42:45,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7839 states. [2024-12-02 11:42:45,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7839 to 5759. [2024-12-02 11:42:45,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5759 states, 5300 states have (on average 1.2681132075471697) internal successors, (6721), 5349 states have internal predecessors, (6721), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-12-02 11:42:45,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5759 states to 5759 states and 7417 transitions. [2024-12-02 11:42:45,958 INFO L78 Accepts]: Start accepts. Automaton has 5759 states and 7417 transitions. Word has length 152 [2024-12-02 11:42:45,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:45,958 INFO L471 AbstractCegarLoop]: Abstraction has 5759 states and 7417 transitions. [2024-12-02 11:42:45,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:45,958 INFO L276 IsEmpty]: Start isEmpty. Operand 5759 states and 7417 transitions. [2024-12-02 11:42:45,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:42:45,959 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:45,960 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:45,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:46,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:46,160 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:46,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:46,161 INFO L85 PathProgramCache]: Analyzing trace with hash -517201912, now seen corresponding path program 1 times [2024-12-02 11:42:46,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:46,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248463936] [2024-12-02 11:42:46,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:46,161 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 11:42:46,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:46,163 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:46,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:46,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:46,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 11:42:46,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:46,474 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 12 treesize of output 8 [2024-12-02 11:42:46,512 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 23 treesize of output 22 [2024-12-02 11:42:46,652 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 11:42:46,790 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 27 treesize of output 11 [2024-12-02 11:42:46,873 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 27 treesize of output 11 [2024-12-02 11:42:46,985 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:46,986 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 36 [2024-12-02 11:42:47,168 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:47,168 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 61 [2024-12-02 11:42:47,259 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 15 treesize of output 7 [2024-12-02 11:42:47,534 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 419 proven. 12 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-12-02 11:42:47,535 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:42:48,003 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:48,003 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:48,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248463936] [2024-12-02 11:42:48,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248463936] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:42:48,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:42:48,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 23 [2024-12-02 11:42:48,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339692045] [2024-12-02 11:42:48,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:48,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:42:48,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:48,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:42:48,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2024-12-02 11:42:48,005 INFO L87 Difference]: Start difference. First operand 5759 states and 7417 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:49,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:49,637 INFO L93 Difference]: Finished difference Result 12734 states and 16383 transitions. [2024-12-02 11:42:49,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:42:49,638 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-12-02 11:42:49,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:49,647 INFO L225 Difference]: With dead ends: 12734 [2024-12-02 11:42:49,647 INFO L226 Difference]: Without dead ends: 8515 [2024-12-02 11:42:49,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2024-12-02 11:42:49,651 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 329 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:49,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 1371 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 11:42:49,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8515 states. [2024-12-02 11:42:49,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8515 to 5791. [2024-12-02 11:42:49,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5791 states, 5332 states have (on average 1.2691297824456114) internal successors, (6767), 5381 states have internal predecessors, (6767), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-12-02 11:42:49,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5791 states to 5791 states and 7463 transitions. [2024-12-02 11:42:49,919 INFO L78 Accepts]: Start accepts. Automaton has 5791 states and 7463 transitions. Word has length 152 [2024-12-02 11:42:49,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:49,919 INFO L471 AbstractCegarLoop]: Abstraction has 5791 states and 7463 transitions. [2024-12-02 11:42:49,920 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:49,920 INFO L276 IsEmpty]: Start isEmpty. Operand 5791 states and 7463 transitions. [2024-12-02 11:42:49,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:42:49,921 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:49,921 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:49,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:50,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:50,122 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:50,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:50,122 INFO L85 PathProgramCache]: Analyzing trace with hash 43899014, now seen corresponding path program 1 times [2024-12-02 11:42:50,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:50,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251449710] [2024-12-02 11:42:50,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:50,123 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 11:42:50,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:50,124 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:50,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:50,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-02 11:42:50,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:50,413 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 11:42:50,416 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 11:42:50,582 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 25 [2024-12-02 11:42:50,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:50,671 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 56 [2024-12-02 11:42:51,458 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:51,458 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 102 treesize of output 48 [2024-12-02 11:42:51,460 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 11:42:51,461 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:51,461 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:51,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251449710] [2024-12-02 11:42:51,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251449710] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:51,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:51,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:42:51,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335863938] [2024-12-02 11:42:51,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:51,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:42:51,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:51,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:42:51,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:42:51,462 INFO L87 Difference]: Start difference. First operand 5791 states and 7463 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:42:53,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:53,764 INFO L93 Difference]: Finished difference Result 10818 states and 13962 transitions. [2024-12-02 11:42:53,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:42:53,765 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2024-12-02 11:42:53,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:53,773 INFO L225 Difference]: With dead ends: 10818 [2024-12-02 11:42:53,773 INFO L226 Difference]: Without dead ends: 6553 [2024-12-02 11:42:53,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:42:53,777 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 327 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:53,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 1419 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 11:42:53,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6553 states. [2024-12-02 11:42:54,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6553 to 5645. [2024-12-02 11:42:54,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5645 states, 5186 states have (on average 1.2624373312765136) internal successors, (6547), 5235 states have internal predecessors, (6547), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-12-02 11:42:54,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5645 states to 5645 states and 7243 transitions. [2024-12-02 11:42:54,079 INFO L78 Accepts]: Start accepts. Automaton has 5645 states and 7243 transitions. Word has length 152 [2024-12-02 11:42:54,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:54,079 INFO L471 AbstractCegarLoop]: Abstraction has 5645 states and 7243 transitions. [2024-12-02 11:42:54,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:42:54,079 INFO L276 IsEmpty]: Start isEmpty. Operand 5645 states and 7243 transitions. [2024-12-02 11:42:54,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:42:54,081 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:54,081 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:54,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:54,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:54,281 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:54,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:54,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1544448888, now seen corresponding path program 1 times [2024-12-02 11:42:54,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:54,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71003482] [2024-12-02 11:42:54,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:54,282 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 11:42:54,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:54,283 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:54,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:54,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 11:42:54,569 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:54,572 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 11:42:54,574 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 11:42:54,577 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 11:42:54,584 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 21 treesize of output 21 [2024-12-02 11:42:54,697 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:54,697 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 22 [2024-12-02 11:42:54,765 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:54,765 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:54,765 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:54,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71003482] [2024-12-02 11:42:54,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [71003482] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:54,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:54,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:42:54,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361365996] [2024-12-02 11:42:54,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:54,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:42:54,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:54,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:42:54,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:42:54,766 INFO L87 Difference]: Start difference. First operand 5645 states and 7243 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:55,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:55,898 INFO L93 Difference]: Finished difference Result 10790 states and 13850 transitions. [2024-12-02 11:42:55,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 11:42:55,899 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-12-02 11:42:55,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:55,906 INFO L225 Difference]: With dead ends: 10790 [2024-12-02 11:42:55,906 INFO L226 Difference]: Without dead ends: 6671 [2024-12-02 11:42:55,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:42:55,911 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 160 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:55,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1974 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:42:55,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6671 states. [2024-12-02 11:42:56,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6671 to 5645. [2024-12-02 11:42:56,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5645 states, 5186 states have (on average 1.2624373312765136) internal successors, (6547), 5235 states have internal predecessors, (6547), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-12-02 11:42:56,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5645 states to 5645 states and 7243 transitions. [2024-12-02 11:42:56,219 INFO L78 Accepts]: Start accepts. Automaton has 5645 states and 7243 transitions. Word has length 152 [2024-12-02 11:42:56,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:56,219 INFO L471 AbstractCegarLoop]: Abstraction has 5645 states and 7243 transitions. [2024-12-02 11:42:56,219 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:56,219 INFO L276 IsEmpty]: Start isEmpty. Operand 5645 states and 7243 transitions. [2024-12-02 11:42:56,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:42:56,221 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:56,221 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:56,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:56,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:56,422 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:56,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:56,422 INFO L85 PathProgramCache]: Analyzing trace with hash 745498888, now seen corresponding path program 1 times [2024-12-02 11:42:56,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:56,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528055578] [2024-12-02 11:42:56,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:56,423 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 11:42:56,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:56,424 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:56,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:56,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 11:42:56,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:56,720 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 11:42:56,722 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 11:42:56,724 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 21 treesize of output 21 [2024-12-02 11:42:56,784 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:56,784 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 57 treesize of output 52 [2024-12-02 11:42:57,381 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:42:57,381 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:57,382 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:42:57,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528055578] [2024-12-02 11:42:57,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528055578] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:57,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:42:57,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 11:42:57,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974531575] [2024-12-02 11:42:57,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:57,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 11:42:57,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:42:57,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:42:57,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:42:57,383 INFO L87 Difference]: Start difference. First operand 5645 states and 7243 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:58,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:58,793 INFO L93 Difference]: Finished difference Result 10526 states and 13496 transitions. [2024-12-02 11:42:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 11:42:58,794 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-12-02 11:42:58,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:58,801 INFO L225 Difference]: With dead ends: 10526 [2024-12-02 11:42:58,802 INFO L226 Difference]: Without dead ends: 6365 [2024-12-02 11:42:58,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:42:58,805 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 323 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:58,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 1329 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 11:42:58,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6365 states. [2024-12-02 11:42:59,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6365 to 5499. [2024-12-02 11:42:59,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5040 states have (on average 1.2533730158730159) internal successors, (6317), 5089 states have internal predecessors, (6317), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-12-02 11:42:59,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 7013 transitions. [2024-12-02 11:42:59,091 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 7013 transitions. Word has length 152 [2024-12-02 11:42:59,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:59,091 INFO L471 AbstractCegarLoop]: Abstraction has 5499 states and 7013 transitions. [2024-12-02 11:42:59,091 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:42:59,091 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 7013 transitions. [2024-12-02 11:42:59,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:42:59,092 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:59,092 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:59,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:59,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:59,293 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:59,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:59,293 INFO L85 PathProgramCache]: Analyzing trace with hash -842849014, now seen corresponding path program 1 times [2024-12-02 11:42:59,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:42:59,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747157995] [2024-12-02 11:42:59,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:59,293 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 11:42:59,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:42:59,295 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:59,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:42:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:59,593 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 11:42:59,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:59,598 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 11:42:59,600 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 11:42:59,768 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 30 treesize of output 14 [2024-12-02 11:42:59,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:42:59,799 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 11:43:00,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:00,011 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 59 treesize of output 27 [2024-12-02 11:43:00,094 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 11:43:00,094 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:00,094 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:00,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747157995] [2024-12-02 11:43:00,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747157995] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:00,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:00,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 11:43:00,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189777502] [2024-12-02 11:43:00,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:00,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 11:43:00,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:00,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 11:43:00,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:43:00,095 INFO L87 Difference]: Start difference. First operand 5499 states and 7013 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:43:02,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:02,004 INFO L93 Difference]: Finished difference Result 10528 states and 13400 transitions. [2024-12-02 11:43:02,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 11:43:02,004 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2024-12-02 11:43:02,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:02,012 INFO L225 Difference]: With dead ends: 10528 [2024-12-02 11:43:02,012 INFO L226 Difference]: Without dead ends: 6525 [2024-12-02 11:43:02,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2024-12-02 11:43:02,016 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 296 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:02,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1858 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 11:43:02,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6525 states. [2024-12-02 11:43:02,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6525 to 5451. [2024-12-02 11:43:02,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 4992 states have (on average 1.2522035256410255) internal successors, (6251), 5041 states have internal predecessors, (6251), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-12-02 11:43:02,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 6947 transitions. [2024-12-02 11:43:02,316 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 6947 transitions. Word has length 152 [2024-12-02 11:43:02,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:02,316 INFO L471 AbstractCegarLoop]: Abstraction has 5451 states and 6947 transitions. [2024-12-02 11:43:02,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:43:02,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 6947 transitions. [2024-12-02 11:43:02,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:43:02,317 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:02,317 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:02,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:02,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:02,518 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:02,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:02,518 INFO L85 PathProgramCache]: Analyzing trace with hash -700443386, now seen corresponding path program 1 times [2024-12-02 11:43:02,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:02,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87190719] [2024-12-02 11:43:02,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:02,519 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 11:43:02,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:02,520 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:02,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:02,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 11:43:02,847 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:02,851 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 11:43:02,894 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 11:43:03,226 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:03,227 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 39 treesize of output 26 [2024-12-02 11:43:03,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:03,322 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 60 treesize of output 46 [2024-12-02 11:43:03,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:03,672 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 75 treesize of output 39 [2024-12-02 11:43:03,716 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 286 proven. 33 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-12-02 11:43:03,716 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:43:03,985 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:03,985 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:03,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87190719] [2024-12-02 11:43:03,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87190719] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:03,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:43:03,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2024-12-02 11:43:03,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837539232] [2024-12-02 11:43:03,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:03,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:43:03,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:03,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:43:03,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:43:03,986 INFO L87 Difference]: Start difference. First operand 5451 states and 6947 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:04,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:04,998 INFO L93 Difference]: Finished difference Result 10477 states and 13344 transitions. [2024-12-02 11:43:04,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:43:04,999 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-12-02 11:43:04,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:05,007 INFO L225 Difference]: With dead ends: 10477 [2024-12-02 11:43:05,007 INFO L226 Difference]: Without dead ends: 6518 [2024-12-02 11:43:05,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2024-12-02 11:43:05,011 INFO L435 NwaCegarLoop]: 294 mSDtfsCounter, 388 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:05,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1219 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:43:05,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6518 states. [2024-12-02 11:43:05,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6518 to 5341. [2024-12-02 11:43:05,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 4882 states have (on average 1.2484637443670628) internal successors, (6095), 4931 states have internal predecessors, (6095), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-12-02 11:43:05,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 6791 transitions. [2024-12-02 11:43:05,331 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 6791 transitions. Word has length 152 [2024-12-02 11:43:05,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:05,331 INFO L471 AbstractCegarLoop]: Abstraction has 5341 states and 6791 transitions. [2024-12-02 11:43:05,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:05,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 6791 transitions. [2024-12-02 11:43:05,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:43:05,332 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:05,332 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:05,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:05,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:05,533 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:05,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:05,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1156488, now seen corresponding path program 1 times [2024-12-02 11:43:05,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:05,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609854866] [2024-12-02 11:43:05,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:05,534 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 11:43:05,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:05,535 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:05,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:05,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 11:43:05,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:05,850 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 11:43:05,852 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 11:43:06,005 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 30 treesize of output 14 [2024-12-02 11:43:06,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:06,059 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 51 treesize of output 41 [2024-12-02 11:43:06,341 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:06,341 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 77 treesize of output 33 [2024-12-02 11:43:06,378 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-12-02 11:43:06,378 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:06,378 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:06,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1609854866] [2024-12-02 11:43:06,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1609854866] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:06,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:06,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:43:06,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379150389] [2024-12-02 11:43:06,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:06,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:43:06,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:06,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:43:06,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:43:06,379 INFO L87 Difference]: Start difference. First operand 5341 states and 6791 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:43:08,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:08,182 INFO L93 Difference]: Finished difference Result 10799 states and 13692 transitions. [2024-12-02 11:43:08,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:43:08,183 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2024-12-02 11:43:08,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:08,191 INFO L225 Difference]: With dead ends: 10799 [2024-12-02 11:43:08,191 INFO L226 Difference]: Without dead ends: 6946 [2024-12-02 11:43:08,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:43:08,195 INFO L435 NwaCegarLoop]: 269 mSDtfsCounter, 285 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:08,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 1309 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 11:43:08,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6946 states. [2024-12-02 11:43:08,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6946 to 4995. [2024-12-02 11:43:08,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4995 states, 4536 states have (on average 1.2339065255731922) internal successors, (5597), 4585 states have internal predecessors, (5597), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-12-02 11:43:08,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4995 states to 4995 states and 6293 transitions. [2024-12-02 11:43:08,511 INFO L78 Accepts]: Start accepts. Automaton has 4995 states and 6293 transitions. Word has length 152 [2024-12-02 11:43:08,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:08,511 INFO L471 AbstractCegarLoop]: Abstraction has 4995 states and 6293 transitions. [2024-12-02 11:43:08,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:43:08,511 INFO L276 IsEmpty]: Start isEmpty. Operand 4995 states and 6293 transitions. [2024-12-02 11:43:08,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:43:08,513 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:08,513 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:08,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 11:43:08,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:08,713 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:08,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:08,714 INFO L85 PathProgramCache]: Analyzing trace with hash -451019235, now seen corresponding path program 1 times [2024-12-02 11:43:08,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:08,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690947297] [2024-12-02 11:43:08,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:08,714 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 11:43:08,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:08,716 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:08,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:08,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 11:43:08,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:08,984 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-12-02 11:43:08,984 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:08,984 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:08,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690947297] [2024-12-02 11:43:08,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690947297] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:08,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:08,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:43:08,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572080768] [2024-12-02 11:43:08,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:08,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:43:08,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:08,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:43:08,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:43:08,986 INFO L87 Difference]: Start difference. First operand 4995 states and 6293 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 11:43:09,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:09,439 INFO L93 Difference]: Finished difference Result 9970 states and 12534 transitions. [2024-12-02 11:43:09,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:43:09,440 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 152 [2024-12-02 11:43:09,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:09,448 INFO L225 Difference]: With dead ends: 9970 [2024-12-02 11:43:09,448 INFO L226 Difference]: Without dead ends: 5123 [2024-12-02 11:43:09,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 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 11:43:09,453 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 1 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:09,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 631 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:43:09,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5123 states. [2024-12-02 11:43:09,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5123 to 4995. [2024-12-02 11:43:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4995 states, 4536 states have (on average 1.2312610229276897) internal successors, (5585), 4585 states have internal predecessors, (5585), 348 states have call successors, (348), 110 states have call predecessors, (348), 110 states have return successors, (348), 299 states have call predecessors, (348), 348 states have call successors, (348) [2024-12-02 11:43:09,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4995 states to 4995 states and 6281 transitions. [2024-12-02 11:43:09,817 INFO L78 Accepts]: Start accepts. Automaton has 4995 states and 6281 transitions. Word has length 152 [2024-12-02 11:43:09,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:09,817 INFO L471 AbstractCegarLoop]: Abstraction has 4995 states and 6281 transitions. [2024-12-02 11:43:09,817 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, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 11:43:09,817 INFO L276 IsEmpty]: Start isEmpty. Operand 4995 states and 6281 transitions. [2024-12-02 11:43:09,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 11:43:09,818 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:09,818 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:09,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 11:43:10,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:10,018 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:10,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:10,019 INFO L85 PathProgramCache]: Analyzing trace with hash 641615967, now seen corresponding path program 1 times [2024-12-02 11:43:10,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:10,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778098288] [2024-12-02 11:43:10,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:10,019 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 11:43:10,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:10,021 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:10,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:10,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 11:43:10,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:10,369 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 11:43:11,034 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 119 treesize of output 59 [2024-12-02 11:43:11,275 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:11,276 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 201 treesize of output 75 [2024-12-02 11:43:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 244 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 11:43:11,320 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:43:11,533 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:11,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778098288] [2024-12-02 11:43:11,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [778098288] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:11,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [490778380] [2024-12-02 11:43:11,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:11,534 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 11:43:11,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 11:43:11,535 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 11:43:11,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2024-12-02 11:43:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:12,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 11:43:12,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:12,493 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 11:43:13,715 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 101 treesize of output 57 [2024-12-02 11:43:14,005 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:14,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 75 [2024-12-02 11:43:14,019 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 244 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-12-02 11:43:14,019 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:43:14,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [490778380] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:14,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 11:43:14,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2024-12-02 11:43:14,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449959491] [2024-12-02 11:43:14,202 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 11:43:14,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 11:43:14,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:14,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 11:43:14,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-12-02 11:43:14,204 INFO L87 Difference]: Start difference. First operand 4995 states and 6281 transitions. Second operand has 22 states, 20 states have (on average 7.3) internal successors, (146), 19 states have internal predecessors, (146), 6 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2024-12-02 11:43:16,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:16,082 INFO L93 Difference]: Finished difference Result 9808 states and 12277 transitions. [2024-12-02 11:43:16,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 11:43:16,083 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 7.3) internal successors, (146), 19 states have internal predecessors, (146), 6 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) Word has length 152 [2024-12-02 11:43:16,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:16,091 INFO L225 Difference]: With dead ends: 9808 [2024-12-02 11:43:16,091 INFO L226 Difference]: Without dead ends: 5123 [2024-12-02 11:43:16,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 362 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=323, Invalid=1237, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 11:43:16,094 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 523 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:16,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 1747 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 11:43:16,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5123 states. [2024-12-02 11:43:16,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5123 to 2613. [2024-12-02 11:43:16,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2613 states, 2354 states have (on average 1.2221750212404419) internal successors, (2877), 2377 states have internal predecessors, (2877), 188 states have call successors, (188), 70 states have call predecessors, (188), 70 states have return successors, (188), 165 states have call predecessors, (188), 188 states have call successors, (188) [2024-12-02 11:43:16,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 3253 transitions. [2024-12-02 11:43:16,316 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 3253 transitions. Word has length 152 [2024-12-02 11:43:16,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:16,316 INFO L471 AbstractCegarLoop]: Abstraction has 2613 states and 3253 transitions. [2024-12-02 11:43:16,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 7.3) internal successors, (146), 19 states have internal predecessors, (146), 6 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2024-12-02 11:43:16,316 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 3253 transitions. [2024-12-02 11:43:16,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 11:43:16,317 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:16,317 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:16,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:16,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2024-12-02 11:43:16,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 11:43:16,717 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:16,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:16,718 INFO L85 PathProgramCache]: Analyzing trace with hash -2038347279, now seen corresponding path program 1 times [2024-12-02 11:43:16,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:16,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804771465] [2024-12-02 11:43:16,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:16,718 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 11:43:16,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:16,719 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:16,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:16,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:43:16,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:16,982 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:16,982 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:16,982 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:16,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1804771465] [2024-12-02 11:43:16,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1804771465] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:16,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:16,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:43:16,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981576462] [2024-12-02 11:43:16,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:16,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:43:16,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:16,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:43:16,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:43:16,983 INFO L87 Difference]: Start difference. First operand 2613 states and 3253 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:17,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:17,199 INFO L93 Difference]: Finished difference Result 4422 states and 5534 transitions. [2024-12-02 11:43:17,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:43:17,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 153 [2024-12-02 11:43:17,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:17,205 INFO L225 Difference]: With dead ends: 4422 [2024-12-02 11:43:17,205 INFO L226 Difference]: Without dead ends: 2567 [2024-12-02 11:43:17,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 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 11:43:17,207 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 299 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 11:43:17,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 299 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:43:17,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2024-12-02 11:43:17,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 2564. [2024-12-02 11:43:17,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2305 states have (on average 1.2164859002169197) internal successors, (2804), 2328 states have internal predecessors, (2804), 188 states have call successors, (188), 70 states have call predecessors, (188), 70 states have return successors, (188), 165 states have call predecessors, (188), 188 states have call successors, (188) [2024-12-02 11:43:17,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 3180 transitions. [2024-12-02 11:43:17,428 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 3180 transitions. Word has length 153 [2024-12-02 11:43:17,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:17,428 INFO L471 AbstractCegarLoop]: Abstraction has 2564 states and 3180 transitions. [2024-12-02 11:43:17,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:17,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 3180 transitions. [2024-12-02 11:43:17,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 11:43:17,429 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:17,429 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:17,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:17,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:17,629 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:17,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:17,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1498266246, now seen corresponding path program 1 times [2024-12-02 11:43:17,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:17,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889953625] [2024-12-02 11:43:17,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:17,630 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 11:43:17,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:17,632 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:17,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:17,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 11:43:17,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:17,948 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 11:43:17,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:17,972 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 28 treesize of output 31 [2024-12-02 11:43:18,060 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:18,060 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 50 treesize of output 18 [2024-12-02 11:43:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:18,112 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:18,112 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:18,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889953625] [2024-12-02 11:43:18,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [889953625] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:18,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:18,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:43:18,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116274579] [2024-12-02 11:43:18,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:18,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:43:18,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:18,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:43:18,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:43:18,114 INFO L87 Difference]: Start difference. First operand 2564 states and 3180 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:18,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:18,950 INFO L93 Difference]: Finished difference Result 5817 states and 7195 transitions. [2024-12-02 11:43:18,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:43:18,950 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 154 [2024-12-02 11:43:18,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:18,956 INFO L225 Difference]: With dead ends: 5817 [2024-12-02 11:43:18,956 INFO L226 Difference]: Without dead ends: 3420 [2024-12-02 11:43:18,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:43:18,958 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 92 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1833 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:18,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1833 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:43:18,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3420 states. [2024-12-02 11:43:19,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3420 to 3307. [2024-12-02 11:43:19,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3307 states, 2996 states have (on average 1.215954606141522) internal successors, (3643), 3026 states have internal predecessors, (3643), 224 states have call successors, (224), 86 states have call predecessors, (224), 86 states have return successors, (224), 194 states have call predecessors, (224), 224 states have call successors, (224) [2024-12-02 11:43:19,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3307 states to 3307 states and 4091 transitions. [2024-12-02 11:43:19,240 INFO L78 Accepts]: Start accepts. Automaton has 3307 states and 4091 transitions. Word has length 154 [2024-12-02 11:43:19,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:19,240 INFO L471 AbstractCegarLoop]: Abstraction has 3307 states and 4091 transitions. [2024-12-02 11:43:19,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:19,240 INFO L276 IsEmpty]: Start isEmpty. Operand 3307 states and 4091 transitions. [2024-12-02 11:43:19,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 11:43:19,241 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:19,241 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:19,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:19,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:19,442 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:19,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:19,442 INFO L85 PathProgramCache]: Analyzing trace with hash 218402568, now seen corresponding path program 1 times [2024-12-02 11:43:19,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:19,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601067895] [2024-12-02 11:43:19,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:19,443 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 11:43:19,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:19,444 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:19,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:19,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 11:43:19,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:19,770 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 11:43:19,849 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 34 treesize of output 14 [2024-12-02 11:43:20,013 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:20,013 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 26 [2024-12-02 11:43:20,245 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:20,246 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 26 [2024-12-02 11:43:20,341 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:20,341 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 44 treesize of output 16 [2024-12-02 11:43:20,372 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 24 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-02 11:43:20,372 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:43:20,550 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:20,550 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:20,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601067895] [2024-12-02 11:43:20,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601067895] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:20,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:43:20,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20 [2024-12-02 11:43:20,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54184926] [2024-12-02 11:43:20,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:20,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:43:20,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:20,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:43:20,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:43:20,552 INFO L87 Difference]: Start difference. First operand 3307 states and 4091 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:21,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:21,015 INFO L93 Difference]: Finished difference Result 6525 states and 8061 transitions. [2024-12-02 11:43:21,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:43:21,016 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 154 [2024-12-02 11:43:21,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:21,022 INFO L225 Difference]: With dead ends: 6525 [2024-12-02 11:43:21,022 INFO L226 Difference]: Without dead ends: 3400 [2024-12-02 11:43:21,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2024-12-02 11:43:21,025 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 152 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:21,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 610 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:43:21,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2024-12-02 11:43:21,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 3288. [2024-12-02 11:43:21,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 2977 states have (on average 1.2139737991266375) internal successors, (3614), 3007 states have internal predecessors, (3614), 224 states have call successors, (224), 86 states have call predecessors, (224), 86 states have return successors, (224), 194 states have call predecessors, (224), 224 states have call successors, (224) [2024-12-02 11:43:21,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 4062 transitions. [2024-12-02 11:43:21,311 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 4062 transitions. Word has length 154 [2024-12-02 11:43:21,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:21,311 INFO L471 AbstractCegarLoop]: Abstraction has 3288 states and 4062 transitions. [2024-12-02 11:43:21,312 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:21,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 4062 transitions. [2024-12-02 11:43:21,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 11:43:21,312 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:21,312 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:21,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:21,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:21,513 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:21,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:21,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1520898500, now seen corresponding path program 1 times [2024-12-02 11:43:21,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:21,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514891833] [2024-12-02 11:43:21,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:21,514 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 11:43:21,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:21,515 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:21,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:21,844 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 11:43:21,847 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:21,851 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 11:43:21,966 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 34 treesize of output 14 [2024-12-02 11:43:22,103 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:22,103 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 26 [2024-12-02 11:43:22,306 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:22,306 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 27 [2024-12-02 11:43:22,376 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:22,377 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 47 treesize of output 17 [2024-12-02 11:43:22,401 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 24 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-02 11:43:22,401 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:43:22,601 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:22,601 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:22,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514891833] [2024-12-02 11:43:22,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514891833] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:22,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:43:22,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20 [2024-12-02 11:43:22,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259387500] [2024-12-02 11:43:22,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:22,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:43:22,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:22,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:43:22,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:43:22,603 INFO L87 Difference]: Start difference. First operand 3288 states and 4062 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:22,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:22,967 INFO L93 Difference]: Finished difference Result 6415 states and 7918 transitions. [2024-12-02 11:43:22,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:43:22,968 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 154 [2024-12-02 11:43:22,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:22,973 INFO L225 Difference]: With dead ends: 6415 [2024-12-02 11:43:22,974 INFO L226 Difference]: Without dead ends: 3309 [2024-12-02 11:43:22,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2024-12-02 11:43:22,976 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 89 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:22,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 644 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:43:22,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3309 states. [2024-12-02 11:43:23,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3309 to 2813. [2024-12-02 11:43:23,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2813 states, 2588 states have (on average 1.2291344667697064) internal successors, (3181), 2608 states have internal predecessors, (3181), 162 states have call successors, (162), 62 states have call predecessors, (162), 62 states have return successors, (162), 142 states have call predecessors, (162), 162 states have call successors, (162) [2024-12-02 11:43:23,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 3505 transitions. [2024-12-02 11:43:23,181 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 3505 transitions. Word has length 154 [2024-12-02 11:43:23,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:23,182 INFO L471 AbstractCegarLoop]: Abstraction has 2813 states and 3505 transitions. [2024-12-02 11:43:23,182 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:23,182 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 3505 transitions. [2024-12-02 11:43:23,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 11:43:23,183 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:23,183 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:23,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:23,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:23,383 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:23,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:23,383 INFO L85 PathProgramCache]: Analyzing trace with hash 241034822, now seen corresponding path program 1 times [2024-12-02 11:43:23,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:23,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506754328] [2024-12-02 11:43:23,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:23,384 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 11:43:23,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:23,385 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:23,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:23,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 11:43:23,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:23,697 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 11:43:23,721 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:23,721 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 30 treesize of output 33 [2024-12-02 11:43:23,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:23,824 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 54 treesize of output 18 [2024-12-02 11:43:23,882 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:23,882 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:23,882 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:23,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506754328] [2024-12-02 11:43:23,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506754328] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:23,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:23,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:43:23,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370025000] [2024-12-02 11:43:23,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:23,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:43:23,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:23,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:43:23,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:43:23,883 INFO L87 Difference]: Start difference. First operand 2813 states and 3505 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:24,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:24,886 INFO L93 Difference]: Finished difference Result 5919 states and 7335 transitions. [2024-12-02 11:43:24,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:43:24,887 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 154 [2024-12-02 11:43:24,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:24,892 INFO L225 Difference]: With dead ends: 5919 [2024-12-02 11:43:24,892 INFO L226 Difference]: Without dead ends: 3292 [2024-12-02 11:43:24,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:43:24,894 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 95 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:24,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1913 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:43:24,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3292 states. [2024-12-02 11:43:25,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3292 to 3170. [2024-12-02 11:43:25,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3170 states, 2887 states have (on average 1.2157949428472463) internal successors, (3510), 2914 states have internal predecessors, (3510), 202 states have call successors, (202), 80 states have call predecessors, (202), 80 states have return successors, (202), 175 states have call predecessors, (202), 202 states have call successors, (202) [2024-12-02 11:43:25,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 3914 transitions. [2024-12-02 11:43:25,160 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 3914 transitions. Word has length 154 [2024-12-02 11:43:25,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:25,160 INFO L471 AbstractCegarLoop]: Abstraction has 3170 states and 3914 transitions. [2024-12-02 11:43:25,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:25,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 3914 transitions. [2024-12-02 11:43:25,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 11:43:25,161 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:25,161 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:25,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:25,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:25,361 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:25,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:25,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1973424404, now seen corresponding path program 1 times [2024-12-02 11:43:25,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:25,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696253603] [2024-12-02 11:43:25,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:25,362 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 11:43:25,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:25,364 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:25,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Waiting until timeout for monitored process [2024-12-02 11:43:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:25,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 11:43:25,630 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:25,937 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 33 treesize of output 15 [2024-12-02 11:43:25,956 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 178 proven. 39 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-12-02 11:43:25,956 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:43:26,073 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:26,073 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:26,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696253603] [2024-12-02 11:43:26,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696253603] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:26,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:43:26,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-12-02 11:43:26,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519723373] [2024-12-02 11:43:26,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:26,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:43:26,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:26,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:43:26,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:43:26,074 INFO L87 Difference]: Start difference. First operand 3170 states and 3914 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:26,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:26,444 INFO L93 Difference]: Finished difference Result 5935 states and 7314 transitions. [2024-12-02 11:43:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:43:26,444 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 155 [2024-12-02 11:43:26,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:26,450 INFO L225 Difference]: With dead ends: 5935 [2024-12-02 11:43:26,450 INFO L226 Difference]: Without dead ends: 3445 [2024-12-02 11:43:26,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:43:26,452 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 138 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:26,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 537 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:43:26,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2024-12-02 11:43:26,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 3170. [2024-12-02 11:43:26,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3170 states, 2887 states have (on average 1.2092137166608936) internal successors, (3491), 2914 states have internal predecessors, (3491), 202 states have call successors, (202), 80 states have call predecessors, (202), 80 states have return successors, (202), 175 states have call predecessors, (202), 202 states have call successors, (202) [2024-12-02 11:43:26,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 3895 transitions. [2024-12-02 11:43:26,747 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 3895 transitions. Word has length 155 [2024-12-02 11:43:26,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:26,747 INFO L471 AbstractCegarLoop]: Abstraction has 3170 states and 3895 transitions. [2024-12-02 11:43:26,747 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:26,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 3895 transitions. [2024-12-02 11:43:26,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 11:43:26,748 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:26,748 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:26,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Ended with exit code 0 [2024-12-02 11:43:26,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:26,949 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:26,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:26,949 INFO L85 PathProgramCache]: Analyzing trace with hash -862410779, now seen corresponding path program 1 times [2024-12-02 11:43:26,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:26,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311900100] [2024-12-02 11:43:26,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:26,949 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 11:43:26,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:26,951 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:26,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:27,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 11:43:27,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:27,807 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:27,807 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:27,807 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:27,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311900100] [2024-12-02 11:43:27,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1311900100] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:27,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:27,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:43:27,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241426730] [2024-12-02 11:43:27,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:27,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:43:27,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:27,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:43:27,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:43:27,809 INFO L87 Difference]: Start difference. First operand 3170 states and 3895 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:29,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:29,138 INFO L93 Difference]: Finished difference Result 6133 states and 7545 transitions. [2024-12-02 11:43:29,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:43:29,139 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 157 [2024-12-02 11:43:29,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:29,145 INFO L225 Difference]: With dead ends: 6133 [2024-12-02 11:43:29,145 INFO L226 Difference]: Without dead ends: 3643 [2024-12-02 11:43:29,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:43:29,147 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 117 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:29,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1260 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 11:43:29,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3643 states. [2024-12-02 11:43:29,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3643 to 3541. [2024-12-02 11:43:29,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3541 states, 3218 states have (on average 1.2078931013051586) internal successors, (3887), 3250 states have internal predecessors, (3887), 231 states have call successors, (231), 91 states have call predecessors, (231), 91 states have return successors, (231), 199 states have call predecessors, (231), 231 states have call successors, (231) [2024-12-02 11:43:29,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 4349 transitions. [2024-12-02 11:43:29,452 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 4349 transitions. Word has length 157 [2024-12-02 11:43:29,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:29,453 INFO L471 AbstractCegarLoop]: Abstraction has 3541 states and 4349 transitions. [2024-12-02 11:43:29,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:29,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 4349 transitions. [2024-12-02 11:43:29,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 11:43:29,454 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:29,454 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:29,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:29,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:29,654 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:29,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:29,655 INFO L85 PathProgramCache]: Analyzing trace with hash 639447932, now seen corresponding path program 1 times [2024-12-02 11:43:29,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:29,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982991238] [2024-12-02 11:43:29,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:29,655 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 11:43:29,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:29,657 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:29,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:29,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 11:43:29,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:29,999 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 11:43:30,030 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 27 treesize of output 11 [2024-12-02 11:43:30,051 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 27 treesize of output 11 [2024-12-02 11:43:30,088 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 15 treesize of output 7 [2024-12-02 11:43:30,172 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 10 [2024-12-02 11:43:30,317 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-12-02 11:43:30,317 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:43:30,417 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 11:43:30,493 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:30,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1982991238] [2024-12-02 11:43:30,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1982991238] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:30,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [510361583] [2024-12-02 11:43:30,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:30,494 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 11:43:30,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 11:43:30,495 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 11:43:30,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2024-12-02 11:43:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:31,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 11:43:31,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:31,274 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 11:43:31,448 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 23 treesize of output 11 [2024-12-02 11:43:31,491 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 23 treesize of output 11 [2024-12-02 11:43:31,564 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 15 treesize of output 7 [2024-12-02 11:43:31,618 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 10 [2024-12-02 11:43:31,653 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-12-02 11:43:31,654 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:43:31,718 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 11:43:31,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [510361583] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:31,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 11:43:31,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2024-12-02 11:43:31,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124683047] [2024-12-02 11:43:31,798 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 11:43:31,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 11:43:31,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:31,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 11:43:31,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:43:31,799 INFO L87 Difference]: Start difference. First operand 3541 states and 4349 transitions. Second operand has 15 states, 13 states have (on average 9.76923076923077) internal successors, (127), 15 states have internal predecessors, (127), 6 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2024-12-02 11:43:35,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:35,531 INFO L93 Difference]: Finished difference Result 8989 states and 10989 transitions. [2024-12-02 11:43:35,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 11:43:35,532 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 9.76923076923077) internal successors, (127), 15 states have internal predecessors, (127), 6 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) Word has length 157 [2024-12-02 11:43:35,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:35,540 INFO L225 Difference]: With dead ends: 8989 [2024-12-02 11:43:35,540 INFO L226 Difference]: Without dead ends: 6124 [2024-12-02 11:43:35,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 392 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=214, Invalid=842, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 11:43:35,542 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 321 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:35,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 1269 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-12-02 11:43:35,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6124 states. [2024-12-02 11:43:35,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6124 to 3756. [2024-12-02 11:43:35,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3756 states, 3523 states have (on average 1.2455293783707069) internal successors, (4388), 3542 states have internal predecessors, (4388), 166 states have call successors, (166), 66 states have call predecessors, (166), 66 states have return successors, (166), 147 states have call predecessors, (166), 166 states have call successors, (166) [2024-12-02 11:43:35,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3756 states to 3756 states and 4720 transitions. [2024-12-02 11:43:35,870 INFO L78 Accepts]: Start accepts. Automaton has 3756 states and 4720 transitions. Word has length 157 [2024-12-02 11:43:35,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:35,871 INFO L471 AbstractCegarLoop]: Abstraction has 3756 states and 4720 transitions. [2024-12-02 11:43:35,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 9.76923076923077) internal successors, (127), 15 states have internal predecessors, (127), 6 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2024-12-02 11:43:35,871 INFO L276 IsEmpty]: Start isEmpty. Operand 3756 states and 4720 transitions. [2024-12-02 11:43:35,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 11:43:35,871 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:35,872 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:35,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2024-12-02 11:43:36,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:36,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:36,272 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:36,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:36,272 INFO L85 PathProgramCache]: Analyzing trace with hash 52641918, now seen corresponding path program 1 times [2024-12-02 11:43:36,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:36,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512210494] [2024-12-02 11:43:36,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:36,273 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 11:43:36,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:36,274 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:36,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:36,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 11:43:36,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:36,632 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 11:43:36,732 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 34 treesize of output 14 [2024-12-02 11:43:36,769 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 34 treesize of output 14 [2024-12-02 11:43:36,922 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:36,923 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 59 treesize of output 56 [2024-12-02 11:43:37,368 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:37,369 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 62 treesize of output 28 [2024-12-02 11:43:37,374 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 11 [2024-12-02 11:43:37,409 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 265 proven. 24 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-12-02 11:43:37,409 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:43:37,628 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:37,628 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:37,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512210494] [2024-12-02 11:43:37,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512210494] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:37,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:43:37,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2024-12-02 11:43:37,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187335249] [2024-12-02 11:43:37,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:37,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:43:37,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:37,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:43:37,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:43:37,629 INFO L87 Difference]: Start difference. First operand 3756 states and 4720 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:38,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:38,314 INFO L93 Difference]: Finished difference Result 7757 states and 9767 transitions. [2024-12-02 11:43:38,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:43:38,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 157 [2024-12-02 11:43:38,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:38,321 INFO L225 Difference]: With dead ends: 7757 [2024-12-02 11:43:38,321 INFO L226 Difference]: Without dead ends: 4712 [2024-12-02 11:43:38,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 297 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 11:43:38,324 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 83 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:38,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 612 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:43:38,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4712 states. [2024-12-02 11:43:38,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4712 to 4076. [2024-12-02 11:43:38,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4076 states, 3843 states have (on average 1.253968253968254) internal successors, (4819), 3862 states have internal predecessors, (4819), 166 states have call successors, (166), 66 states have call predecessors, (166), 66 states have return successors, (166), 147 states have call predecessors, (166), 166 states have call successors, (166) [2024-12-02 11:43:38,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4076 states to 4076 states and 5151 transitions. [2024-12-02 11:43:38,617 INFO L78 Accepts]: Start accepts. Automaton has 4076 states and 5151 transitions. Word has length 157 [2024-12-02 11:43:38,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:38,617 INFO L471 AbstractCegarLoop]: Abstraction has 4076 states and 5151 transitions. [2024-12-02 11:43:38,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:38,617 INFO L276 IsEmpty]: Start isEmpty. Operand 4076 states and 5151 transitions. [2024-12-02 11:43:38,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 11:43:38,618 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:38,618 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:38,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:38,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:38,819 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:38,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:38,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1916371043, now seen corresponding path program 1 times [2024-12-02 11:43:38,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:38,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643697866] [2024-12-02 11:43:38,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:38,820 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 11:43:38,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:38,821 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:38,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:39,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 11:43:39,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:39,270 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:39,270 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 11:43:39,321 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:39,321 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:39,321 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:39,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643697866] [2024-12-02 11:43:39,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643697866] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:39,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:39,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:43:39,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685382594] [2024-12-02 11:43:39,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:39,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:43:39,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:39,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:43:39,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:43:39,322 INFO L87 Difference]: Start difference. First operand 4076 states and 5151 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:40,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:40,435 INFO L93 Difference]: Finished difference Result 8481 states and 10649 transitions. [2024-12-02 11:43:40,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:43:40,436 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 157 [2024-12-02 11:43:40,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:40,442 INFO L225 Difference]: With dead ends: 8481 [2024-12-02 11:43:40,442 INFO L226 Difference]: Without dead ends: 4278 [2024-12-02 11:43:40,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:43:40,445 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 141 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:40,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1222 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:43:40,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4278 states. [2024-12-02 11:43:40,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4278 to 3397. [2024-12-02 11:43:40,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3397 states, 3164 states have (on average 1.2310366624525917) internal successors, (3895), 3183 states have internal predecessors, (3895), 166 states have call successors, (166), 66 states have call predecessors, (166), 66 states have return successors, (166), 147 states have call predecessors, (166), 166 states have call successors, (166) [2024-12-02 11:43:40,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3397 states to 3397 states and 4227 transitions. [2024-12-02 11:43:40,739 INFO L78 Accepts]: Start accepts. Automaton has 3397 states and 4227 transitions. Word has length 157 [2024-12-02 11:43:40,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:40,739 INFO L471 AbstractCegarLoop]: Abstraction has 3397 states and 4227 transitions. [2024-12-02 11:43:40,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:40,739 INFO L276 IsEmpty]: Start isEmpty. Operand 3397 states and 4227 transitions. [2024-12-02 11:43:40,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 11:43:40,740 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:40,740 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:40,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:40,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:40,940 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:40,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:40,940 INFO L85 PathProgramCache]: Analyzing trace with hash 643410025, now seen corresponding path program 1 times [2024-12-02 11:43:40,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:40,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041466947] [2024-12-02 11:43:40,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:40,941 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 11:43:40,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:40,943 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:40,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:41,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 11:43:41,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:41,294 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:41,294 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 59 treesize of output 29 [2024-12-02 11:43:41,303 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:41,303 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:41,303 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:41,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041466947] [2024-12-02 11:43:41,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041466947] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:41,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:41,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:43:41,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549491401] [2024-12-02 11:43:41,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:41,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:43:41,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:41,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:43:41,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:43:41,305 INFO L87 Difference]: Start difference. First operand 3397 states and 4227 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:41,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:41,952 INFO L93 Difference]: Finished difference Result 7843 states and 9692 transitions. [2024-12-02 11:43:41,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:43:41,953 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 157 [2024-12-02 11:43:41,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:41,960 INFO L225 Difference]: With dead ends: 7843 [2024-12-02 11:43:41,960 INFO L226 Difference]: Without dead ends: 4538 [2024-12-02 11:43:41,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 152 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 11:43:41,963 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 62 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:41,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 700 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:43:41,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4538 states. [2024-12-02 11:43:42,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4538 to 3509. [2024-12-02 11:43:42,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3509 states, 3262 states have (on average 1.2250153280196199) internal successors, (3996), 3283 states have internal predecessors, (3996), 176 states have call successors, (176), 70 states have call predecessors, (176), 70 states have return successors, (176), 155 states have call predecessors, (176), 176 states have call successors, (176) [2024-12-02 11:43:42,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3509 states to 3509 states and 4348 transitions. [2024-12-02 11:43:42,288 INFO L78 Accepts]: Start accepts. Automaton has 3509 states and 4348 transitions. Word has length 157 [2024-12-02 11:43:42,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:42,288 INFO L471 AbstractCegarLoop]: Abstraction has 3509 states and 4348 transitions. [2024-12-02 11:43:42,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:42,288 INFO L276 IsEmpty]: Start isEmpty. Operand 3509 states and 4348 transitions. [2024-12-02 11:43:42,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 11:43:42,289 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:42,289 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:42,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:42,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:42,489 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:42,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:42,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1350734681, now seen corresponding path program 1 times [2024-12-02 11:43:42,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:42,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131090443] [2024-12-02 11:43:42,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:42,490 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 11:43:42,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:42,491 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:42,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:42,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 11:43:42,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:43,294 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:43,294 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:43,294 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:43,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131090443] [2024-12-02 11:43:43,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131090443] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:43,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:43,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:43:43,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297606522] [2024-12-02 11:43:43,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:43,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:43:43,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:43,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:43:43,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:43:43,294 INFO L87 Difference]: Start difference. First operand 3509 states and 4348 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:44,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:44,627 INFO L93 Difference]: Finished difference Result 7153 states and 8839 transitions. [2024-12-02 11:43:44,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 11:43:44,628 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 157 [2024-12-02 11:43:44,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:44,634 INFO L225 Difference]: With dead ends: 7153 [2024-12-02 11:43:44,634 INFO L226 Difference]: Without dead ends: 4332 [2024-12-02 11:43:44,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-12-02 11:43:44,636 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 162 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:44,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 1059 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 11:43:44,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4332 states. [2024-12-02 11:43:44,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4332 to 3618. [2024-12-02 11:43:44,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 3371 states have (on average 1.2242657964995551) internal successors, (4127), 3392 states have internal predecessors, (4127), 176 states have call successors, (176), 70 states have call predecessors, (176), 70 states have return successors, (176), 155 states have call predecessors, (176), 176 states have call successors, (176) [2024-12-02 11:43:44,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 4479 transitions. [2024-12-02 11:43:44,948 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 4479 transitions. Word has length 157 [2024-12-02 11:43:44,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:44,948 INFO L471 AbstractCegarLoop]: Abstraction has 3618 states and 4479 transitions. [2024-12-02 11:43:44,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:44,948 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 4479 transitions. [2024-12-02 11:43:44,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 11:43:44,949 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:44,949 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:44,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:45,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:45,149 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:45,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:45,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2054842793, now seen corresponding path program 1 times [2024-12-02 11:43:45,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:45,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370299654] [2024-12-02 11:43:45,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:45,150 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 11:43:45,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:45,151 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:45,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:45,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 11:43:45,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:45,636 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:45,636 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 73 treesize of output 31 [2024-12-02 11:43:45,639 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:45,639 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:45,639 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:45,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370299654] [2024-12-02 11:43:45,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1370299654] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:45,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:45,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:43:45,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387179915] [2024-12-02 11:43:45,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:45,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:43:45,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:45,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:43:45,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:43:45,640 INFO L87 Difference]: Start difference. First operand 3618 states and 4479 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:46,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:46,506 INFO L93 Difference]: Finished difference Result 7436 states and 9160 transitions. [2024-12-02 11:43:46,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:43:46,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 157 [2024-12-02 11:43:46,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:46,514 INFO L225 Difference]: With dead ends: 7436 [2024-12-02 11:43:46,514 INFO L226 Difference]: Without dead ends: 3935 [2024-12-02 11:43:46,516 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:43:46,516 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 73 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:46,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 986 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:43:46,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3935 states. [2024-12-02 11:43:46,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3935 to 3454. [2024-12-02 11:43:46,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 3207 states have (on average 1.219519800436545) internal successors, (3911), 3228 states have internal predecessors, (3911), 176 states have call successors, (176), 70 states have call predecessors, (176), 70 states have return successors, (176), 155 states have call predecessors, (176), 176 states have call successors, (176) [2024-12-02 11:43:46,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 4263 transitions. [2024-12-02 11:43:46,828 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 4263 transitions. Word has length 157 [2024-12-02 11:43:46,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:46,828 INFO L471 AbstractCegarLoop]: Abstraction has 3454 states and 4263 transitions. [2024-12-02 11:43:46,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:46,828 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 4263 transitions. [2024-12-02 11:43:46,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 11:43:46,829 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:46,829 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:46,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:47,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:47,029 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:47,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:47,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1129450530, now seen corresponding path program 1 times [2024-12-02 11:43:47,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:47,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396314517] [2024-12-02 11:43:47,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:47,030 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 11:43:47,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:47,032 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:47,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:47,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 11:43:47,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:48,204 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:48,204 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:48,204 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:48,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396314517] [2024-12-02 11:43:48,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396314517] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:48,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:48,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 11:43:48,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689460120] [2024-12-02 11:43:48,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:48,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 11:43:48,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:48,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 11:43:48,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-12-02 11:43:48,205 INFO L87 Difference]: Start difference. First operand 3454 states and 4263 transitions. Second operand has 16 states, 16 states have (on average 4.8125) internal successors, (77), 16 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:49,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:49,818 INFO L93 Difference]: Finished difference Result 8057 states and 9852 transitions. [2024-12-02 11:43:49,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 11:43:49,818 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.8125) internal successors, (77), 16 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 159 [2024-12-02 11:43:49,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:49,827 INFO L225 Difference]: With dead ends: 8057 [2024-12-02 11:43:49,827 INFO L226 Difference]: Without dead ends: 4770 [2024-12-02 11:43:49,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-12-02 11:43:49,830 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 145 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:49,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1802 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 11:43:49,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4770 states. [2024-12-02 11:43:50,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4770 to 3413. [2024-12-02 11:43:50,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 3166 states have (on average 1.2160454832596337) internal successors, (3850), 3187 states have internal predecessors, (3850), 176 states have call successors, (176), 70 states have call predecessors, (176), 70 states have return successors, (176), 155 states have call predecessors, (176), 176 states have call successors, (176) [2024-12-02 11:43:50,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 4202 transitions. [2024-12-02 11:43:50,165 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 4202 transitions. Word has length 159 [2024-12-02 11:43:50,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:50,165 INFO L471 AbstractCegarLoop]: Abstraction has 3413 states and 4202 transitions. [2024-12-02 11:43:50,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.8125) internal successors, (77), 16 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:50,166 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 4202 transitions. [2024-12-02 11:43:50,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 11:43:50,167 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:50,167 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:50,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:50,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:50,367 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:50,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:50,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1171372060, now seen corresponding path program 1 times [2024-12-02 11:43:50,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:50,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25580053] [2024-12-02 11:43:50,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:50,368 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 11:43:50,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:50,370 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:50,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:50,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 11:43:50,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:50,777 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:50,777 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:50,777 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:50,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25580053] [2024-12-02 11:43:50,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25580053] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:50,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:50,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:43:50,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672770189] [2024-12-02 11:43:50,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:50,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:43:50,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:50,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:43:50,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:43:50,778 INFO L87 Difference]: Start difference. First operand 3413 states and 4202 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:51,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:51,643 INFO L93 Difference]: Finished difference Result 7410 states and 9075 transitions. [2024-12-02 11:43:51,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:43:51,644 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 159 [2024-12-02 11:43:51,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:51,654 INFO L225 Difference]: With dead ends: 7410 [2024-12-02 11:43:51,654 INFO L226 Difference]: Without dead ends: 4164 [2024-12-02 11:43:51,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:43:51,658 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 75 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:51,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 894 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:43:51,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4164 states. [2024-12-02 11:43:52,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4164 to 3715. [2024-12-02 11:43:52,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3715 states, 3451 states have (on average 1.213851057664445) internal successors, (4189), 3474 states have internal predecessors, (4189), 188 states have call successors, (188), 75 states have call predecessors, (188), 75 states have return successors, (188), 165 states have call predecessors, (188), 188 states have call successors, (188) [2024-12-02 11:43:52,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3715 states to 3715 states and 4565 transitions. [2024-12-02 11:43:52,082 INFO L78 Accepts]: Start accepts. Automaton has 3715 states and 4565 transitions. Word has length 159 [2024-12-02 11:43:52,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:52,083 INFO L471 AbstractCegarLoop]: Abstraction has 3715 states and 4565 transitions. [2024-12-02 11:43:52,083 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:52,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3715 states and 4565 transitions. [2024-12-02 11:43:52,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 11:43:52,084 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:52,084 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:52,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:52,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:52,284 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:52,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:52,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1599805045, now seen corresponding path program 1 times [2024-12-02 11:43:52,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:52,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348208488] [2024-12-02 11:43:52,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:52,285 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 11:43:52,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:52,287 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:52,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:52,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:43:52,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:52,701 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 11 [2024-12-02 11:43:52,726 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:52,726 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:52,726 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:52,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348208488] [2024-12-02 11:43:52,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348208488] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:52,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:52,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:43:52,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43999594] [2024-12-02 11:43:52,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:52,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:43:52,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:52,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:43:52,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:43:52,727 INFO L87 Difference]: Start difference. First operand 3715 states and 4565 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:53,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:53,834 INFO L93 Difference]: Finished difference Result 7309 states and 9012 transitions. [2024-12-02 11:43:53,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:43:53,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 159 [2024-12-02 11:43:53,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:53,845 INFO L225 Difference]: With dead ends: 7309 [2024-12-02 11:43:53,845 INFO L226 Difference]: Without dead ends: 4278 [2024-12-02 11:43:53,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:43:53,847 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 119 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:53,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 823 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:43:53,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4278 states. [2024-12-02 11:43:54,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4278 to 3676. [2024-12-02 11:43:54,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3676 states, 3412 states have (on average 1.2101406799531067) internal successors, (4129), 3435 states have internal predecessors, (4129), 188 states have call successors, (188), 75 states have call predecessors, (188), 75 states have return successors, (188), 165 states have call predecessors, (188), 188 states have call successors, (188) [2024-12-02 11:43:54,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3676 states to 3676 states and 4505 transitions. [2024-12-02 11:43:54,277 INFO L78 Accepts]: Start accepts. Automaton has 3676 states and 4505 transitions. Word has length 159 [2024-12-02 11:43:54,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:54,277 INFO L471 AbstractCegarLoop]: Abstraction has 3676 states and 4505 transitions. [2024-12-02 11:43:54,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:54,277 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 4505 transitions. [2024-12-02 11:43:54,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 11:43:54,278 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:54,278 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:54,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:54,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:54,479 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:54,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:54,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1012999031, now seen corresponding path program 1 times [2024-12-02 11:43:54,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:54,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745566969] [2024-12-02 11:43:54,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:54,480 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 11:43:54,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:54,481 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:54,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:54,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 11:43:54,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:54,839 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 15 [2024-12-02 11:43:54,916 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 11:43:54,930 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 11 [2024-12-02 11:43:54,989 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:54,990 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:54,990 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:54,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745566969] [2024-12-02 11:43:54,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745566969] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:54,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:54,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:43:54,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948748999] [2024-12-02 11:43:54,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:54,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:43:54,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:54,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:43:54,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:43:54,991 INFO L87 Difference]: Start difference. First operand 3676 states and 4505 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:56,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:56,396 INFO L93 Difference]: Finished difference Result 6693 states and 8230 transitions. [2024-12-02 11:43:56,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 11:43:56,397 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 159 [2024-12-02 11:43:56,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:56,403 INFO L225 Difference]: With dead ends: 6693 [2024-12-02 11:43:56,403 INFO L226 Difference]: Without dead ends: 3701 [2024-12-02 11:43:56,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:43:56,406 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 122 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:56,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 1771 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 11:43:56,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3701 states. [2024-12-02 11:43:56,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3701 to 3651. [2024-12-02 11:43:56,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3651 states, 3387 states have (on average 1.2096250369058164) internal successors, (4097), 3410 states have internal predecessors, (4097), 188 states have call successors, (188), 75 states have call predecessors, (188), 75 states have return successors, (188), 165 states have call predecessors, (188), 188 states have call successors, (188) [2024-12-02 11:43:56,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3651 states to 3651 states and 4473 transitions. [2024-12-02 11:43:56,803 INFO L78 Accepts]: Start accepts. Automaton has 3651 states and 4473 transitions. Word has length 159 [2024-12-02 11:43:56,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:56,804 INFO L471 AbstractCegarLoop]: Abstraction has 3651 states and 4473 transitions. [2024-12-02 11:43:56,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:56,804 INFO L276 IsEmpty]: Start isEmpty. Operand 3651 states and 4473 transitions. [2024-12-02 11:43:56,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 11:43:56,805 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:56,805 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:56,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:57,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:57,005 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:57,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:57,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1451605858, now seen corresponding path program 1 times [2024-12-02 11:43:57,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:43:57,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050366042] [2024-12-02 11:43:57,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:57,006 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 11:43:57,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:43:57,008 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:43:57,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2024-12-02 11:43:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:57,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 11:43:57,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:57,591 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:43:57,592 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 60 treesize of output 24 [2024-12-02 11:43:57,736 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 11:43:57,736 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:43:57,736 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:43:57,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050366042] [2024-12-02 11:43:57,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050366042] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:43:57,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:43:57,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 11:43:57,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590699087] [2024-12-02 11:43:57,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:43:57,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 11:43:57,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:43:57,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 11:43:57,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:43:57,737 INFO L87 Difference]: Start difference. First operand 3651 states and 4473 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:43:59,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:59,661 INFO L93 Difference]: Finished difference Result 7633 states and 9312 transitions. [2024-12-02 11:43:59,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:43:59,661 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 159 [2024-12-02 11:43:59,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:59,669 INFO L225 Difference]: With dead ends: 7633 [2024-12-02 11:43:59,670 INFO L226 Difference]: Without dead ends: 3990 [2024-12-02 11:43:59,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:43:59,672 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 154 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:59,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1690 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 11:43:59,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3990 states. [2024-12-02 11:44:00,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3990 to 3409. [2024-12-02 11:44:00,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3409 states, 3145 states have (on average 1.2006359300476948) internal successors, (3776), 3168 states have internal predecessors, (3776), 188 states have call successors, (188), 75 states have call predecessors, (188), 75 states have return successors, (188), 165 states have call predecessors, (188), 188 states have call successors, (188) [2024-12-02 11:44:00,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3409 states to 3409 states and 4152 transitions. [2024-12-02 11:44:00,082 INFO L78 Accepts]: Start accepts. Automaton has 3409 states and 4152 transitions. Word has length 159 [2024-12-02 11:44:00,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:44:00,082 INFO L471 AbstractCegarLoop]: Abstraction has 3409 states and 4152 transitions. [2024-12-02 11:44:00,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:44:00,082 INFO L276 IsEmpty]: Start isEmpty. Operand 3409 states and 4152 transitions. [2024-12-02 11:44:00,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-12-02 11:44:00,085 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:44:00,085 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 11:44:00,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Ended with exit code 0 [2024-12-02 11:44:00,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:00,285 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:44:00,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:44:00,286 INFO L85 PathProgramCache]: Analyzing trace with hash -841432172, now seen corresponding path program 1 times [2024-12-02 11:44:00,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:44:00,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920673215] [2024-12-02 11:44:00,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:44:00,286 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 11:44:00,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:44:00,288 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:00,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:44:00,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:44:00,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:44:00,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2315 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 2284 trivial. 0 not checked. [2024-12-02 11:44:00,749 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:44:00,749 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:44:00,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920673215] [2024-12-02 11:44:00,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [920673215] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:44:00,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:44:00,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:44:00,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062007398] [2024-12-02 11:44:00,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:44:00,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:44:00,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:44:00,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:44:00,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:44:00,751 INFO L87 Difference]: Start difference. First operand 3409 states and 4152 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:44:01,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:44:01,186 INFO L93 Difference]: Finished difference Result 6408 states and 7694 transitions. [2024-12-02 11:44:01,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:44:01,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 292 [2024-12-02 11:44:01,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:44:01,195 INFO L225 Difference]: With dead ends: 6408 [2024-12-02 11:44:01,195 INFO L226 Difference]: Without dead ends: 3155 [2024-12-02 11:44:01,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 289 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 11:44:01,198 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 63 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:44:01,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 776 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:44:01,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3155 states. [2024-12-02 11:44:01,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3155 to 3123. [2024-12-02 11:44:01,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 2859 states have (on average 1.1409583770549143) internal successors, (3262), 2882 states have internal predecessors, (3262), 188 states have call successors, (188), 75 states have call predecessors, (188), 75 states have return successors, (188), 165 states have call predecessors, (188), 188 states have call successors, (188) [2024-12-02 11:44:01,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 3638 transitions. [2024-12-02 11:44:01,590 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 3638 transitions. Word has length 292 [2024-12-02 11:44:01,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:44:01,590 INFO L471 AbstractCegarLoop]: Abstraction has 3123 states and 3638 transitions. [2024-12-02 11:44:01,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:44:01,590 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 3638 transitions. [2024-12-02 11:44:01,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-12-02 11:44:01,593 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:44:01,593 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 11:44:01,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:01,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:01,793 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:44:01,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:44:01,794 INFO L85 PathProgramCache]: Analyzing trace with hash -622577454, now seen corresponding path program 1 times [2024-12-02 11:44:01,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:44:01,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059122329] [2024-12-02 11:44:01,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:44:01,794 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 11:44:01,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:44:01,796 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:01,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:44:02,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 11:44:02,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:44:02,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2315 backedges. 1176 proven. 39 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2024-12-02 11:44:02,482 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:44:02,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2315 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 2287 trivial. 0 not checked. [2024-12-02 11:44:02,604 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:44:02,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059122329] [2024-12-02 11:44:02,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059122329] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:44:02,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:44:02,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2024-12-02 11:44:02,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410930991] [2024-12-02 11:44:02,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:44:02,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:44:02,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:44:02,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:44:02,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:44:02,605 INFO L87 Difference]: Start difference. First operand 3123 states and 3638 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:44:03,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:44:03,095 INFO L93 Difference]: Finished difference Result 5923 states and 6876 transitions. [2024-12-02 11:44:03,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:44:03,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 292 [2024-12-02 11:44:03,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:44:03,102 INFO L225 Difference]: With dead ends: 5923 [2024-12-02 11:44:03,102 INFO L226 Difference]: Without dead ends: 2956 [2024-12-02 11:44:03,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 574 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:44:03,104 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 120 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:44:03,104 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 440 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:44:03,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2024-12-02 11:44:03,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 2287. [2024-12-02 11:44:03,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2287 states, 2051 states have (on average 1.1379814724524622) internal successors, (2334), 2065 states have internal predecessors, (2334), 164 states have call successors, (164), 71 states have call predecessors, (164), 71 states have return successors, (164), 150 states have call predecessors, (164), 164 states have call successors, (164) [2024-12-02 11:44:03,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2287 states to 2287 states and 2662 transitions. [2024-12-02 11:44:03,475 INFO L78 Accepts]: Start accepts. Automaton has 2287 states and 2662 transitions. Word has length 292 [2024-12-02 11:44:03,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:44:03,475 INFO L471 AbstractCegarLoop]: Abstraction has 2287 states and 2662 transitions. [2024-12-02 11:44:03,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:44:03,475 INFO L276 IsEmpty]: Start isEmpty. Operand 2287 states and 2662 transitions. [2024-12-02 11:44:03,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-12-02 11:44:03,477 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:44:03,478 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:44:03,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:03,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:03,678 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:44:03,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:44:03,678 INFO L85 PathProgramCache]: Analyzing trace with hash 650424795, now seen corresponding path program 1 times [2024-12-02 11:44:03,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:44:03,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919921124] [2024-12-02 11:44:03,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:44:03,679 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 11:44:03,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:44:03,680 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:03,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:44:04,102 INFO L256 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 11:44:04,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:44:04,397 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 33 treesize of output 15 [2024-12-02 11:44:04,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2316 backedges. 1177 proven. 39 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2024-12-02 11:44:04,419 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:44:04,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2316 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 2287 trivial. 0 not checked. [2024-12-02 11:44:04,575 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:44:04,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919921124] [2024-12-02 11:44:04,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919921124] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 11:44:04,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:44:04,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-12-02 11:44:04,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621759805] [2024-12-02 11:44:04,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:44:04,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:44:04,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:44:04,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:44:04,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:44:04,576 INFO L87 Difference]: Start difference. First operand 2287 states and 2662 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:44:05,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:44:05,051 INFO L93 Difference]: Finished difference Result 4039 states and 4692 transitions. [2024-12-02 11:44:05,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:44:05,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 297 [2024-12-02 11:44:05,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:44:05,057 INFO L225 Difference]: With dead ends: 4039 [2024-12-02 11:44:05,057 INFO L226 Difference]: Without dead ends: 2063 [2024-12-02 11:44:05,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:44:05,058 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 110 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:44:05,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 517 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:44:05,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2063 states. [2024-12-02 11:44:05,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2063 to 1875. [2024-12-02 11:44:05,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1651 states have (on average 1.1393095093882495) internal successors, (1881), 1659 states have internal predecessors, (1881), 152 states have call successors, (152), 71 states have call predecessors, (152), 71 states have return successors, (152), 144 states have call predecessors, (152), 152 states have call successors, (152) [2024-12-02 11:44:05,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2185 transitions. [2024-12-02 11:44:05,404 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2185 transitions. Word has length 297 [2024-12-02 11:44:05,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:44:05,404 INFO L471 AbstractCegarLoop]: Abstraction has 1875 states and 2185 transitions. [2024-12-02 11:44:05,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:44:05,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2185 transitions. [2024-12-02 11:44:05,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-02 11:44:05,406 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:44:05,407 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:44:05,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:05,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:05,607 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:44:05,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:44:05,607 INFO L85 PathProgramCache]: Analyzing trace with hash 643148504, now seen corresponding path program 1 times [2024-12-02 11:44:05,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:44:05,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055964797] [2024-12-02 11:44:05,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:44:05,608 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 11:44:05,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:44:05,609 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:05,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:44:06,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 11:44:06,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:44:06,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2316 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2291 trivial. 0 not checked. [2024-12-02 11:44:06,145 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:44:06,145 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:44:06,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055964797] [2024-12-02 11:44:06,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055964797] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:44:06,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:44:06,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:44:06,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568337851] [2024-12-02 11:44:06,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:44:06,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:44:06,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:44:06,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:44:06,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:44:06,146 INFO L87 Difference]: Start difference. First operand 1875 states and 2185 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:44:06,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:44:06,931 INFO L93 Difference]: Finished difference Result 3632 states and 4240 transitions. [2024-12-02 11:44:06,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:44:06,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 300 [2024-12-02 11:44:06,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:44:06,938 INFO L225 Difference]: With dead ends: 3632 [2024-12-02 11:44:06,938 INFO L226 Difference]: Without dead ends: 2164 [2024-12-02 11:44:06,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 296 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 11:44:06,939 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 118 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:44:06,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 529 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:44:06,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2024-12-02 11:44:07,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 1872. [2024-12-02 11:44:07,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1872 states, 1648 states have (on average 1.1316747572815533) internal successors, (1865), 1656 states have internal predecessors, (1865), 152 states have call successors, (152), 71 states have call predecessors, (152), 71 states have return successors, (152), 144 states have call predecessors, (152), 152 states have call successors, (152) [2024-12-02 11:44:07,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1872 states to 1872 states and 2169 transitions. [2024-12-02 11:44:07,288 INFO L78 Accepts]: Start accepts. Automaton has 1872 states and 2169 transitions. Word has length 300 [2024-12-02 11:44:07,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:44:07,289 INFO L471 AbstractCegarLoop]: Abstraction has 1872 states and 2169 transitions. [2024-12-02 11:44:07,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:44:07,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1872 states and 2169 transitions. [2024-12-02 11:44:07,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-12-02 11:44:07,291 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:44:07,291 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:44:07,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:07,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:07,491 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:44:07,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:44:07,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1592885135, now seen corresponding path program 1 times [2024-12-02 11:44:07,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:44:07,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310277345] [2024-12-02 11:44:07,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:44:07,492 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 11:44:07,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:44:07,493 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:07,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:44:07,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 11:44:07,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:44:08,330 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:44:08,330 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 74 treesize of output 30 [2024-12-02 11:44:08,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2316 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2291 trivial. 0 not checked. [2024-12-02 11:44:08,412 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:44:08,412 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:44:08,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310277345] [2024-12-02 11:44:08,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310277345] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:44:08,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:44:08,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:44:08,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860905826] [2024-12-02 11:44:08,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:44:08,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:44:08,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:44:08,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:44:08,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:44:08,413 INFO L87 Difference]: Start difference. First operand 1872 states and 2169 transitions. Second operand has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:44:09,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:44:09,760 INFO L93 Difference]: Finished difference Result 3565 states and 4116 transitions. [2024-12-02 11:44:09,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 11:44:09,761 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 302 [2024-12-02 11:44:09,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:44:09,767 INFO L225 Difference]: With dead ends: 3565 [2024-12-02 11:44:09,767 INFO L226 Difference]: Without dead ends: 2100 [2024-12-02 11:44:09,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:44:09,769 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 97 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:44:09,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1368 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 11:44:09,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2024-12-02 11:44:10,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1860. [2024-12-02 11:44:10,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1860 states, 1636 states have (on average 1.1253056234718826) internal successors, (1841), 1644 states have internal predecessors, (1841), 152 states have call successors, (152), 71 states have call predecessors, (152), 71 states have return successors, (152), 144 states have call predecessors, (152), 152 states have call successors, (152) [2024-12-02 11:44:10,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1860 states to 1860 states and 2145 transitions. [2024-12-02 11:44:10,131 INFO L78 Accepts]: Start accepts. Automaton has 1860 states and 2145 transitions. Word has length 302 [2024-12-02 11:44:10,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:44:10,132 INFO L471 AbstractCegarLoop]: Abstraction has 1860 states and 2145 transitions. [2024-12-02 11:44:10,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.818181818181818) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:44:10,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1860 states and 2145 transitions. [2024-12-02 11:44:10,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-12-02 11:44:10,133 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:44:10,133 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:44:10,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:10,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:10,334 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:44:10,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:44:10,334 INFO L85 PathProgramCache]: Analyzing trace with hash 391318587, now seen corresponding path program 1 times [2024-12-02 11:44:10,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:44:10,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036228420] [2024-12-02 11:44:10,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:44:10,335 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 11:44:10,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:44:10,336 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:10,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:44:10,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 11:44:10,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:44:10,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 11:44:10,993 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 84 treesize of output 36 [2024-12-02 11:44:11,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2316 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2291 trivial. 0 not checked. [2024-12-02 11:44:11,017 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:44:11,017 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:44:11,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036228420] [2024-12-02 11:44:11,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036228420] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:44:11,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:44:11,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:44:11,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374992328] [2024-12-02 11:44:11,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:44:11,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:44:11,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:44:11,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:44:11,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:44:11,018 INFO L87 Difference]: Start difference. First operand 1860 states and 2145 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:44:12,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:44:12,269 INFO L93 Difference]: Finished difference Result 3689 states and 4255 transitions. [2024-12-02 11:44:12,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:44:12,270 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 302 [2024-12-02 11:44:12,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:44:12,276 INFO L225 Difference]: With dead ends: 3689 [2024-12-02 11:44:12,276 INFO L226 Difference]: Without dead ends: 2236 [2024-12-02 11:44:12,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:44:12,277 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 206 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:44:12,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 964 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:44:12,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2024-12-02 11:44:12,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 1860. [2024-12-02 11:44:12,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1860 states, 1636 states have (on average 1.1253056234718826) internal successors, (1841), 1644 states have internal predecessors, (1841), 152 states have call successors, (152), 71 states have call predecessors, (152), 71 states have return successors, (152), 144 states have call predecessors, (152), 152 states have call successors, (152) [2024-12-02 11:44:12,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1860 states to 1860 states and 2145 transitions. [2024-12-02 11:44:12,646 INFO L78 Accepts]: Start accepts. Automaton has 1860 states and 2145 transitions. Word has length 302 [2024-12-02 11:44:12,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:44:12,647 INFO L471 AbstractCegarLoop]: Abstraction has 1860 states and 2145 transitions. [2024-12-02 11:44:12,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:44:12,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1860 states and 2145 transitions. [2024-12-02 11:44:12,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-12-02 11:44:12,648 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:44:12,649 INFO L218 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:44:12,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Ended with exit code 0 [2024-12-02 11:44:12,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:12,849 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:44:12,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:44:12,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1207904129, now seen corresponding path program 1 times [2024-12-02 11:44:12,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:44:12,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719778072] [2024-12-02 11:44:12,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:44:12,850 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 11:44:12,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:44:12,851 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:12,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:44:13,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 11:44:13,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:44:13,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2316 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 2291 trivial. 0 not checked. [2024-12-02 11:44:13,639 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:44:13,640 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:44:13,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719778072] [2024-12-02 11:44:13,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719778072] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:44:13,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:44:13,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:44:13,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281791145] [2024-12-02 11:44:13,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:44:13,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:44:13,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:44:13,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:44:13,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:44:13,641 INFO L87 Difference]: Start difference. First operand 1860 states and 2145 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:44:14,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:44:14,734 INFO L93 Difference]: Finished difference Result 3582 states and 4109 transitions. [2024-12-02 11:44:14,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:44:14,735 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 302 [2024-12-02 11:44:14,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:44:14,739 INFO L225 Difference]: With dead ends: 3582 [2024-12-02 11:44:14,739 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 11:44:14,741 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:44:14,741 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 112 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:44:14,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 978 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:44:14,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 11:44:14,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 11:44:14,742 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 11:44:14,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 11:44:14,745 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 302 [2024-12-02 11:44:14,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:44:14,745 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 11:44:14,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 11:44:14,745 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 11:44:14,746 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 11:44:14,747 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 11:44:14,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 11:44:14,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38c8d1b9-a99e-4d19-ac34-15a1c842f2ec/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 11:44:14,950 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] [2024-12-02 11:44:14,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.