./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-97.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_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/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_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/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_eba215db-4482-4530-8f25-12d9ea15d642/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 5da18b64f81f034a410e9d9e3a5ef42f0e947fe2f02b16f700985c826572c6f8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:44:25,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:44:25,862 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:44:25,866 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:44:25,867 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:44:25,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:44:25,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:44:25,889 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:44:25,889 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:44:25,889 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:44:25,890 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:44:25,890 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:44:25,890 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:44:25,890 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:44:25,890 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:44:25,890 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:44:25,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:44:25,891 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:44:25,891 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:44:25,891 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:44:25,891 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:44:25,891 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:44:25,891 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:44:25,891 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:44:25,891 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:44:25,891 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:44:25,892 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:44:25,892 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:44:25,892 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:44:25,892 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:44:25,892 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:44:25,892 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:44:25,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:44:25,892 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:44:25,892 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:44:25,893 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:44:25,893 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:44:25,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:44:25,893 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:44:25,893 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:44:25,893 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:44:25,893 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:44:25,893 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:44:25,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:44:25,894 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:44:25,894 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:44:25,894 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:44:25,894 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:44:25,894 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_eba215db-4482-4530-8f25-12d9ea15d642/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 -> 5da18b64f81f034a410e9d9e3a5ef42f0e947fe2f02b16f700985c826572c6f8 [2024-12-02 08:44:26,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:44:26,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:44:26,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:44:26,125 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:44:26,126 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:44:26,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-97.i [2024-12-02 08:44:28,750 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/data/70a22aea0/8cb139965cf04d3c87c91d119bd8214f/FLAG0e7278366 [2024-12-02 08:44:28,979 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:44:28,980 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-97.i [2024-12-02 08:44:28,988 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/data/70a22aea0/8cb139965cf04d3c87c91d119bd8214f/FLAG0e7278366 [2024-12-02 08:44:29,335 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/data/70a22aea0/8cb139965cf04d3c87c91d119bd8214f [2024-12-02 08:44:29,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:44:29,338 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:44:29,339 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:44:29,339 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:44:29,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:44:29,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:44:29" (1/1) ... [2024-12-02 08:44:29,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@573580c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:29, skipping insertion in model container [2024-12-02 08:44:29,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:44:29" (1/1) ... [2024-12-02 08:44:29,369 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:44:29,514 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_eba215db-4482-4530-8f25-12d9ea15d642/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-97.i[917,930] [2024-12-02 08:44:29,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:44:29,585 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:44:29,593 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_eba215db-4482-4530-8f25-12d9ea15d642/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-97.i[917,930] [2024-12-02 08:44:29,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:44:29,640 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:44:29,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:29 WrapperNode [2024-12-02 08:44:29,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:44:29,641 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:44:29,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:44:29,642 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:44:29,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:29" (1/1) ... [2024-12-02 08:44:29,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:29" (1/1) ... [2024-12-02 08:44:29,688 INFO L138 Inliner]: procedures = 29, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 452 [2024-12-02 08:44:29,688 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:44:29,689 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:44:29,689 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:44:29,689 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:44:29,697 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:29" (1/1) ... [2024-12-02 08:44:29,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:29" (1/1) ... [2024-12-02 08:44:29,701 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:29" (1/1) ... [2024-12-02 08:44:29,717 INFO L175 MemorySlicer]: Split 116 memory accesses to 6 slices as follows [2, 25, 17, 25, 34, 13]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 3, 2, 3, 5, 2]. The 19 writes are split as follows [0, 4, 2, 4, 7, 2]. [2024-12-02 08:44:29,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:29" (1/1) ... [2024-12-02 08:44:29,717 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:29" (1/1) ... [2024-12-02 08:44:29,731 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:29" (1/1) ... [2024-12-02 08:44:29,733 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:29" (1/1) ... [2024-12-02 08:44:29,738 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:29" (1/1) ... [2024-12-02 08:44:29,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:29" (1/1) ... [2024-12-02 08:44:29,743 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:29" (1/1) ... [2024-12-02 08:44:29,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:44:29,748 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:44:29,748 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:44:29,748 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:44:29,749 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:29" (1/1) ... [2024-12-02 08:44:29,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:44:29,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:44:29,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:44:29,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:44:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:44:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-12-02 08:44:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-12-02 08:44:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-12-02 08:44:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-12-02 08:44:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-12-02 08:44:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-12-02 08:44:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 08:44:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 08:44:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 08:44:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 08:44:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 08:44:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 08:44:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-12-02 08:44:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-12-02 08:44:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-12-02 08:44:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-12-02 08:44:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-12-02 08:44:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-12-02 08:44:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 08:44:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 08:44:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 08:44:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 08:44:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 08:44:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 08:44:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-12-02 08:44:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-12-02 08:44:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-12-02 08:44:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-12-02 08:44:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-12-02 08:44:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-12-02 08:44:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:44:29,815 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:44:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:44:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 08:44:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 08:44:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 08:44:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 08:44:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 08:44:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:44:29,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:44:29,946 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:44:29,947 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:44:30,347 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-12-02 08:44:30,347 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:44:30,358 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:44:30,359 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:44:30,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:44:30 BoogieIcfgContainer [2024-12-02 08:44:30,359 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:44:30,362 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:44:30,362 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:44:30,366 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:44:30,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:44:29" (1/3) ... [2024-12-02 08:44:30,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38693730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:44:30, skipping insertion in model container [2024-12-02 08:44:30,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:29" (2/3) ... [2024-12-02 08:44:30,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38693730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:44:30, skipping insertion in model container [2024-12-02 08:44:30,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:44:30" (3/3) ... [2024-12-02 08:44:30,368 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-97.i [2024-12-02 08:44:30,383 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:44:30,385 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-ap_file-97.i that has 2 procedures, 108 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:44:30,444 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:44:30,457 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;@5a268e79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:44:30,457 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:44:30,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 89 states have internal predecessors, (123), 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 08:44:30,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 08:44:30,486 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:30,487 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] [2024-12-02 08:44:30,488 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:30,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:30,494 INFO L85 PathProgramCache]: Analyzing trace with hash -128724950, now seen corresponding path program 1 times [2024-12-02 08:44:30,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:44:30,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187306058] [2024-12-02 08:44:30,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:30,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:30,786 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 08:44:30,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:44:30,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187306058] [2024-12-02 08:44:30,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187306058] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:30,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890239916] [2024-12-02 08:44:30,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:30,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:30,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:44:30,790 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:44:30,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:44:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:31,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:44:31,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:31,056 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 08:44:31,056 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:44:31,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890239916] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:31,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:31,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:44:31,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911093045] [2024-12-02 08:44:31,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:31,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:44:31,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:44:31,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:44:31,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:44:31,080 INFO L87 Difference]: Start difference. First operand has 108 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 89 states have internal predecessors, (123), 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 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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 08:44:31,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:31,104 INFO L93 Difference]: Finished difference Result 209 states and 325 transitions. [2024-12-02 08:44:31,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:44:31,105 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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 134 [2024-12-02 08:44:31,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:31,112 INFO L225 Difference]: With dead ends: 209 [2024-12-02 08:44:31,112 INFO L226 Difference]: Without dead ends: 104 [2024-12-02 08:44:31,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:44:31,118 INFO L435 NwaCegarLoop]: 150 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, 150 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:31,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:44:31,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-12-02 08:44:31,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-12-02 08:44:31,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 85 states have (on average 1.3647058823529412) internal successors, (116), 85 states have internal predecessors, (116), 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 08:44:31,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 150 transitions. [2024-12-02 08:44:31,159 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 150 transitions. Word has length 134 [2024-12-02 08:44:31,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:31,159 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 150 transitions. [2024-12-02 08:44:31,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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 08:44:31,160 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 150 transitions. [2024-12-02 08:44:31,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 08:44:31,162 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:31,163 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] [2024-12-02 08:44:31,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:44:31,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 08:44:31,364 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:31,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:31,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1217556440, now seen corresponding path program 1 times [2024-12-02 08:44:31,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:44:31,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018976922] [2024-12-02 08:44:31,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:31,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:31,781 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 08:44:31,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:44:31,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018976922] [2024-12-02 08:44:31,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018976922] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:31,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824438641] [2024-12-02 08:44:31,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:31,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:31,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:44:31,786 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:44:31,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:44:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:32,033 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:44:32,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:32,086 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 08:44:32,086 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:44:32,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824438641] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:32,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:32,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-12-02 08:44:32,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352453269] [2024-12-02 08:44:32,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:32,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:44:32,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:44:32,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:44:32,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:44:32,089 INFO L87 Difference]: Start difference. First operand 104 states and 150 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 08:44:32,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:32,132 INFO L93 Difference]: Finished difference Result 208 states and 301 transitions. [2024-12-02 08:44:32,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:44:32,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 134 [2024-12-02 08:44:32,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:32,135 INFO L225 Difference]: With dead ends: 208 [2024-12-02 08:44:32,135 INFO L226 Difference]: Without dead ends: 107 [2024-12-02 08:44:32,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 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 08:44:32,137 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 430 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 08:44:32,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 430 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:44:32,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-12-02 08:44:32,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2024-12-02 08:44:32,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 87 states have internal predecessors, (118), 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 08:44:32,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 152 transitions. [2024-12-02 08:44:32,148 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 152 transitions. Word has length 134 [2024-12-02 08:44:32,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:32,149 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 152 transitions. [2024-12-02 08:44:32,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 08:44:32,150 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 152 transitions. [2024-12-02 08:44:32,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 08:44:32,151 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:32,151 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] [2024-12-02 08:44:32,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:44:32,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-12-02 08:44:32,352 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:32,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:32,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1897614810, now seen corresponding path program 1 times [2024-12-02 08:44:32,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:44:32,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488529540] [2024-12-02 08:44:32,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:32,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:32,595 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 08:44:32,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:44:32,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488529540] [2024-12-02 08:44:32,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488529540] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:32,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468708154] [2024-12-02 08:44:32,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:32,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:32,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:44:32,597 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:44:32,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:44:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:32,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:44:32,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:32,866 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 08:44:32,866 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:44:32,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468708154] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:32,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:32,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-12-02 08:44:32,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441085920] [2024-12-02 08:44:32,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:32,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:44:32,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:44:32,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:44:32,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:44:32,869 INFO L87 Difference]: Start difference. First operand 106 states and 152 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 08:44:32,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:32,908 INFO L93 Difference]: Finished difference Result 212 states and 305 transitions. [2024-12-02 08:44:32,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:44:32,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 134 [2024-12-02 08:44:32,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:32,910 INFO L225 Difference]: With dead ends: 212 [2024-12-02 08:44:32,910 INFO L226 Difference]: Without dead ends: 109 [2024-12-02 08:44:32,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 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 08:44:32,912 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 431 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 08:44:32,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 431 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:44:32,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-12-02 08:44:32,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2024-12-02 08:44:32,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 89 states have (on average 1.348314606741573) internal successors, (120), 89 states have internal predecessors, (120), 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 08:44:32,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions. [2024-12-02 08:44:32,925 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 134 [2024-12-02 08:44:32,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:32,925 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 154 transitions. [2024-12-02 08:44:32,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 08:44:32,926 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions. [2024-12-02 08:44:32,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 08:44:32,928 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:32,928 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] [2024-12-02 08:44:32,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:44:33,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:33,129 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:33,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:33,130 INFO L85 PathProgramCache]: Analyzing trace with hash -622345124, now seen corresponding path program 1 times [2024-12-02 08:44:33,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:44:33,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984431647] [2024-12-02 08:44:33,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:33,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:33,353 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 08:44:33,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:44:33,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984431647] [2024-12-02 08:44:33,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984431647] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:33,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257791625] [2024-12-02 08:44:33,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:33,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:33,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:44:33,355 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:44:33,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:44:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:33,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:44:33,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:33,623 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 08:44:33,623 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:44:33,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257791625] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:33,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:33,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-12-02 08:44:33,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187805629] [2024-12-02 08:44:33,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:33,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:44:33,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:44:33,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:44:33,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:44:33,625 INFO L87 Difference]: Start difference. First operand 108 states and 154 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 08:44:33,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:33,653 INFO L93 Difference]: Finished difference Result 216 states and 309 transitions. [2024-12-02 08:44:33,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:44:33,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 134 [2024-12-02 08:44:33,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:33,655 INFO L225 Difference]: With dead ends: 216 [2024-12-02 08:44:33,655 INFO L226 Difference]: Without dead ends: 111 [2024-12-02 08:44:33,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 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 08:44:33,657 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 433 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 08:44:33,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 433 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:44:33,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-12-02 08:44:33,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-12-02 08:44:33,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 91 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 08:44:33,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 156 transitions. [2024-12-02 08:44:33,666 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 156 transitions. Word has length 134 [2024-12-02 08:44:33,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:33,667 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 156 transitions. [2024-12-02 08:44:33,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 08:44:33,667 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 156 transitions. [2024-12-02 08:44:33,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 08:44:33,669 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:33,669 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] [2024-12-02 08:44:33,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 08:44:33,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:33,870 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:33,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:33,870 INFO L85 PathProgramCache]: Analyzing trace with hash -620498082, now seen corresponding path program 1 times [2024-12-02 08:44:33,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:44:33,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610161871] [2024-12-02 08:44:33,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:33,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:34,152 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 08:44:34,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:44:34,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610161871] [2024-12-02 08:44:34,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610161871] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:34,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612002334] [2024-12-02 08:44:34,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:34,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:34,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:44:34,155 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:44:34,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:44:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:34,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:44:34,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:34,430 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 08:44:34,430 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:44:34,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612002334] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:34,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:34,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-12-02 08:44:34,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678614235] [2024-12-02 08:44:34,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:34,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:44:34,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:44:34,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:44:34,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:44:34,432 INFO L87 Difference]: Start difference. First operand 110 states and 156 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 08:44:34,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:34,455 INFO L93 Difference]: Finished difference Result 219 states and 312 transitions. [2024-12-02 08:44:34,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:44:34,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 134 [2024-12-02 08:44:34,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:34,457 INFO L225 Difference]: With dead ends: 219 [2024-12-02 08:44:34,458 INFO L226 Difference]: Without dead ends: 112 [2024-12-02 08:44:34,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:44:34,459 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:34,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 433 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:44:34,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-12-02 08:44:34,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-12-02 08:44:34,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 93 states have (on average 1.3333333333333333) internal successors, (124), 93 states have internal predecessors, (124), 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 08:44:34,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 158 transitions. [2024-12-02 08:44:34,467 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 158 transitions. Word has length 134 [2024-12-02 08:44:34,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:34,468 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 158 transitions. [2024-12-02 08:44:34,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 08:44:34,468 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 158 transitions. [2024-12-02 08:44:34,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 08:44:34,469 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:34,470 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] [2024-12-02 08:44:34,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-12-02 08:44:34,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:34,670 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:34,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:34,671 INFO L85 PathProgramCache]: Analyzing trace with hash 2145792496, now seen corresponding path program 1 times [2024-12-02 08:44:34,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:44:34,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931325476] [2024-12-02 08:44:34,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:34,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:35,274 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 08:44:35,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:44:35,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931325476] [2024-12-02 08:44:35,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931325476] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:35,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:44:35,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:44:35,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173936643] [2024-12-02 08:44:35,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:35,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:44:35,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:44:35,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:44:35,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:44:35,276 INFO L87 Difference]: Start difference. First operand 112 states and 158 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 08:44:35,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:35,430 INFO L93 Difference]: Finished difference Result 263 states and 368 transitions. [2024-12-02 08:44:35,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:44:35,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 136 [2024-12-02 08:44:35,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:35,432 INFO L225 Difference]: With dead ends: 263 [2024-12-02 08:44:35,432 INFO L226 Difference]: Without dead ends: 154 [2024-12-02 08:44:35,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:44:35,433 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 167 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:35,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 526 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:44:35,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-12-02 08:44:35,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 114. [2024-12-02 08:44:35,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 95 states have (on average 1.3263157894736841) internal successors, (126), 95 states have internal predecessors, (126), 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 08:44:35,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 160 transitions. [2024-12-02 08:44:35,443 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 160 transitions. Word has length 136 [2024-12-02 08:44:35,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:35,444 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 160 transitions. [2024-12-02 08:44:35,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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 08:44:35,444 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 160 transitions. [2024-12-02 08:44:35,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 08:44:35,446 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:35,446 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] [2024-12-02 08:44:35,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:44:35,446 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:35,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:35,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1222911559, now seen corresponding path program 1 times [2024-12-02 08:44:35,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:44:35,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462525632] [2024-12-02 08:44:35,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:35,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:36,867 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 08:44:36,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:44:36,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462525632] [2024-12-02 08:44:36,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462525632] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:36,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934153955] [2024-12-02 08:44:36,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:36,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:36,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:44:36,871 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:44:36,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 08:44:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:37,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 08:44:37,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:37,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 08:44:37,517 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 25 treesize of output 13 [2024-12-02 08:44:38,316 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-12-02 08:44:38,316 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 1 case distinctions, treesize of input 21 treesize of output 24 [2024-12-02 08:44:38,417 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 1 proven. 123 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 08:44:38,417 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:38,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934153955] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:38,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:44:38,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2024-12-02 08:44:38,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94758501] [2024-12-02 08:44:38,827 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:44:38,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 08:44:38,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:44:38,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 08:44:38,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:44:38,829 INFO L87 Difference]: Start difference. First operand 114 states and 160 transitions. Second operand has 21 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 21 states have internal predecessors, (99), 7 states have call successors, (34), 4 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 08:44:39,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:39,587 INFO L93 Difference]: Finished difference Result 292 states and 407 transitions. [2024-12-02 08:44:39,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:44:39,588 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 21 states have internal predecessors, (99), 7 states have call successors, (34), 4 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 136 [2024-12-02 08:44:39,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:39,589 INFO L225 Difference]: With dead ends: 292 [2024-12-02 08:44:39,589 INFO L226 Difference]: Without dead ends: 181 [2024-12-02 08:44:39,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=235, Invalid=1097, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 08:44:39,591 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 648 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:39,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 1420 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:44:39,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-12-02 08:44:39,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 129. [2024-12-02 08:44:39,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 109 states have (on average 1.3302752293577982) internal successors, (145), 109 states have internal predecessors, (145), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 08:44:39,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 179 transitions. [2024-12-02 08:44:39,604 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 179 transitions. Word has length 136 [2024-12-02 08:44:39,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:39,605 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 179 transitions. [2024-12-02 08:44:39,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 21 states have internal predecessors, (99), 7 states have call successors, (34), 4 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 08:44:39,605 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 179 transitions. [2024-12-02 08:44:39,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 08:44:39,607 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:39,607 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] [2024-12-02 08:44:39,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 08:44:39,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:39,808 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:39,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:39,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1356925065, now seen corresponding path program 1 times [2024-12-02 08:44:39,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:44:39,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223823919] [2024-12-02 08:44:39,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:39,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:41,680 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 08:44:41,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:44:41,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223823919] [2024-12-02 08:44:41,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223823919] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:41,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081227884] [2024-12-02 08:44:41,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:41,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:41,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:44:41,682 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:44:41,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 08:44:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:41,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 08:44:41,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:42,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 08:44:42,513 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 14 proven. 162 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-12-02 08:44:42,513 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:44:42,781 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 38 treesize of output 34 [2024-12-02 08:44:42,846 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 08:44:42,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081227884] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:44:42,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:44:42,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 24 [2024-12-02 08:44:42,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903063086] [2024-12-02 08:44:42,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:44:42,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 08:44:42,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:44:42,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 08:44:42,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:44:42,849 INFO L87 Difference]: Start difference. First operand 129 states and 179 transitions. Second operand has 24 states, 21 states have (on average 6.523809523809524) internal successors, (137), 23 states have internal predecessors, (137), 10 states have call successors, (51), 4 states have call predecessors, (51), 6 states have return successors, (51), 7 states have call predecessors, (51), 10 states have call successors, (51) [2024-12-02 08:44:44,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:44,771 INFO L93 Difference]: Finished difference Result 346 states and 470 transitions. [2024-12-02 08:44:44,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 08:44:44,772 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 6.523809523809524) internal successors, (137), 23 states have internal predecessors, (137), 10 states have call successors, (51), 4 states have call predecessors, (51), 6 states have return successors, (51), 7 states have call predecessors, (51), 10 states have call successors, (51) Word has length 136 [2024-12-02 08:44:44,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:44,774 INFO L225 Difference]: With dead ends: 346 [2024-12-02 08:44:44,774 INFO L226 Difference]: Without dead ends: 220 [2024-12-02 08:44:44,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=416, Invalid=1654, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 08:44:44,775 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 781 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:44,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 1344 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:44:44,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-12-02 08:44:44,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 215. [2024-12-02 08:44:44,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 186 states have (on average 1.3118279569892473) internal successors, (244), 187 states have internal predecessors, (244), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 08:44:44,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 288 transitions. [2024-12-02 08:44:44,791 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 288 transitions. Word has length 136 [2024-12-02 08:44:44,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:44,792 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 288 transitions. [2024-12-02 08:44:44,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 6.523809523809524) internal successors, (137), 23 states have internal predecessors, (137), 10 states have call successors, (51), 4 states have call predecessors, (51), 6 states have return successors, (51), 7 states have call predecessors, (51), 10 states have call successors, (51) [2024-12-02 08:44:44,792 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 288 transitions. [2024-12-02 08:44:44,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 08:44:44,793 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:44,793 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] [2024-12-02 08:44:44,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 08:44:44,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba215db-4482-4530-8f25-12d9ea15d642/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:44,994 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:44,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:44,994 INFO L85 PathProgramCache]: Analyzing trace with hash -301909567, now seen corresponding path program 1 times [2024-12-02 08:44:44,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:44:44,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490287978] [2024-12-02 08:44:44,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:44,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:45,172 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 08:44:45,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:44:45,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490287978] [2024-12-02 08:44:45,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490287978] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:45,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:44:45,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:44:45,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267785124] [2024-12-02 08:44:45,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:45,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:44:45,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:44:45,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:44:45,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:44:45,174 INFO L87 Difference]: Start difference. First operand 215 states and 288 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 08:44:45,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:45,309 INFO L93 Difference]: Finished difference Result 591 states and 786 transitions. [2024-12-02 08:44:45,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:44:45,309 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 137 [2024-12-02 08:44:45,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:45,313 INFO L225 Difference]: With dead ends: 591 [2024-12-02 08:44:45,313 INFO L226 Difference]: Without dead ends: 379 [2024-12-02 08:44:45,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 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 08:44:45,315 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 94 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:45,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 996 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:44:45,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-12-02 08:44:45,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 372. [2024-12-02 08:44:45,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 323 states have (on average 1.303405572755418) internal successors, (421), 326 states have internal predecessors, (421), 36 states have call successors, (36), 12 states have call predecessors, (36), 12 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 08:44:45,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 493 transitions. [2024-12-02 08:44:45,344 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 493 transitions. Word has length 137 [2024-12-02 08:44:45,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:45,345 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 493 transitions. [2024-12-02 08:44:45,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 08:44:45,345 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 493 transitions. [2024-12-02 08:44:45,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:44:45,345 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:45,346 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] [2024-12-02 08:44:45,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:44:45,346 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:45,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:45,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1396815483, now seen corresponding path program 1 times [2024-12-02 08:44:45,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:44:45,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085129696] [2024-12-02 08:44:45,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:45,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:45,945 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 08:44:45,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:44:45,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085129696] [2024-12-02 08:44:45,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085129696] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:45,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:44:45,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:44:45,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376577339] [2024-12-02 08:44:45,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:45,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:44:45,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:44:45,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:44:45,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:44:45,947 INFO L87 Difference]: Start difference. First operand 372 states and 493 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 08:44:46,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:46,678 INFO L93 Difference]: Finished difference Result 922 states and 1202 transitions. [2024-12-02 08:44:46,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:44:46,678 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2024-12-02 08:44:46,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:46,681 INFO L225 Difference]: With dead ends: 922 [2024-12-02 08:44:46,681 INFO L226 Difference]: Without dead ends: 553 [2024-12-02 08:44:46,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:44:46,683 INFO L435 NwaCegarLoop]: 343 mSDtfsCounter, 288 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:46,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 1354 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:44:46,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-12-02 08:44:46,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 354. [2024-12-02 08:44:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 301 states have (on average 1.282392026578073) internal successors, (386), 304 states have internal predecessors, (386), 38 states have call successors, (38), 14 states have call predecessors, (38), 14 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-02 08:44:46,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 462 transitions. [2024-12-02 08:44:46,719 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 462 transitions. Word has length 138 [2024-12-02 08:44:46,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:46,719 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 462 transitions. [2024-12-02 08:44:46,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 08:44:46,720 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 462 transitions. [2024-12-02 08:44:46,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 08:44:46,721 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:46,721 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 08:44:46,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:44:46,721 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:46,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:46,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1124690120, now seen corresponding path program 1 times [2024-12-02 08:44:46,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:44:46,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648765703] [2024-12-02 08:44:46,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:46,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:47,236 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 08:44:47,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:44:47,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648765703] [2024-12-02 08:44:47,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648765703] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:47,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:44:47,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:44:47,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25906315] [2024-12-02 08:44:47,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:47,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:44:47,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:44:47,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:44:47,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:44:47,238 INFO L87 Difference]: Start difference. First operand 354 states and 462 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 08:44:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:48,012 INFO L93 Difference]: Finished difference Result 947 states and 1223 transitions. [2024-12-02 08:44:48,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:44:48,013 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-12-02 08:44:48,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:48,016 INFO L225 Difference]: With dead ends: 947 [2024-12-02 08:44:48,016 INFO L226 Difference]: Without dead ends: 619 [2024-12-02 08:44:48,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:44:48,018 INFO L435 NwaCegarLoop]: 281 mSDtfsCounter, 330 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:48,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1215 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:44:48,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-12-02 08:44:48,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 328. [2024-12-02 08:44:48,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 282 states have (on average 1.2801418439716312) internal successors, (361), 284 states have internal predecessors, (361), 33 states have call successors, (33), 12 states have call predecessors, (33), 12 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 08:44:48,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 427 transitions. [2024-12-02 08:44:48,083 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 427 transitions. Word has length 139 [2024-12-02 08:44:48,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:48,083 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 427 transitions. [2024-12-02 08:44:48,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 08:44:48,083 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 427 transitions. [2024-12-02 08:44:48,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 08:44:48,085 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:48,085 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 08:44:48,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:44:48,085 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:48,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:48,086 INFO L85 PathProgramCache]: Analyzing trace with hash 23984987, now seen corresponding path program 1 times [2024-12-02 08:44:48,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:44:48,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758321093] [2024-12-02 08:44:48,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:48,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:48,474 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 08:44:48,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:44:48,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758321093] [2024-12-02 08:44:48,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758321093] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:48,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:44:48,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:44:48,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806981526] [2024-12-02 08:44:48,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:48,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:44:48,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:44:48,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:44:48,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:44:48,476 INFO L87 Difference]: Start difference. First operand 328 states and 427 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 08:44:48,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:48,786 INFO L93 Difference]: Finished difference Result 717 states and 931 transitions. [2024-12-02 08:44:48,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:44:48,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-12-02 08:44:48,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:48,789 INFO L225 Difference]: With dead ends: 717 [2024-12-02 08:44:48,790 INFO L226 Difference]: Without dead ends: 392 [2024-12-02 08:44:48,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:44:48,791 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 322 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:48,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 416 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:44:48,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-12-02 08:44:48,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 328. [2024-12-02 08:44:48,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 282 states have (on average 1.2730496453900708) internal successors, (359), 284 states have internal predecessors, (359), 33 states have call successors, (33), 12 states have call predecessors, (33), 12 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 08:44:48,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 425 transitions. [2024-12-02 08:44:48,824 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 425 transitions. Word has length 139 [2024-12-02 08:44:48,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:48,825 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 425 transitions. [2024-12-02 08:44:48,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 08:44:48,825 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 425 transitions. [2024-12-02 08:44:48,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 08:44:48,825 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:48,825 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] [2024-12-02 08:44:48,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 08:44:48,826 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:48,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:48,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1187092364, now seen corresponding path program 1 times [2024-12-02 08:44:48,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:44:48,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573107101] [2024-12-02 08:44:48,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:48,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:49,142 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 08:44:49,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:44:49,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573107101] [2024-12-02 08:44:49,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573107101] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:49,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:44:49,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:44:49,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078319001] [2024-12-02 08:44:49,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:49,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:44:49,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:44:49,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:44:49,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:44:49,144 INFO L87 Difference]: Start difference. First operand 328 states and 425 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 08:44:49,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:49,282 INFO L93 Difference]: Finished difference Result 696 states and 902 transitions. [2024-12-02 08:44:49,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:44:49,283 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 140 [2024-12-02 08:44:49,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:49,284 INFO L225 Difference]: With dead ends: 696 [2024-12-02 08:44:49,284 INFO L226 Difference]: Without dead ends: 371 [2024-12-02 08:44:49,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:44:49,286 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 115 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:49,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 644 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:44:49,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-12-02 08:44:49,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 328. [2024-12-02 08:44:49,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 282 states have (on average 1.2659574468085106) internal successors, (357), 284 states have internal predecessors, (357), 33 states have call successors, (33), 12 states have call predecessors, (33), 12 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2024-12-02 08:44:49,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 423 transitions. [2024-12-02 08:44:49,322 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 423 transitions. Word has length 140 [2024-12-02 08:44:49,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:49,323 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 423 transitions. [2024-12-02 08:44:49,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 08:44:49,323 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 423 transitions. [2024-12-02 08:44:49,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 08:44:49,329 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:49,329 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] [2024-12-02 08:44:49,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 08:44:49,330 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:49,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:49,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1519527030, now seen corresponding path program 1 times [2024-12-02 08:44:49,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:44:49,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523795429] [2024-12-02 08:44:49,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:49,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat