./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex.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_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/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_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/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_08ba9b4f-846e-449f-8921-989fb238ffb4/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 cee8df08ffad3eb9e493a0be0076215dd3a59bce6d2370397b3bb712a7fad867 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 05:49:51,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 05:49:51,056 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 05:49:51,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 05:49:51,062 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 05:49:51,083 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 05:49:51,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 05:49:51,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 05:49:51,084 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 05:49:51,084 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 05:49:51,084 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 05:49:51,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 05:49:51,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 05:49:51,085 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 05:49:51,085 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 05:49:51,085 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 05:49:51,085 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 05:49:51,085 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 05:49:51,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 05:49:51,085 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 05:49:51,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 05:49:51,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 05:49:51,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 05:49:51,086 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 05:49:51,086 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 05:49:51,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 05:49:51,086 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 05:49:51,086 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 05:49:51,086 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 05:49:51,086 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:49:51,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:49:51,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:49:51,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:49:51,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 05:49:51,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:49:51,087 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 05:49:51,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 05:49:51,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:49:51,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 05:49:51,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 05:49:51,087 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 05:49:51,087 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 05:49:51,087 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 05:49:51,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 05:49:51,087 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 05:49:51,087 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 05:49:51,087 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 05:49:51,088 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 05:49:51,088 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/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 -> cee8df08ffad3eb9e493a0be0076215dd3a59bce6d2370397b3bb712a7fad867 [2024-12-02 05:49:51,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 05:49:51,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 05:49:51,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 05:49:51,329 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 05:49:51,329 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 05:49:51,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-sets/test_mutex.i [2024-12-02 05:49:54,123 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/data/39c691718/94355c51eb80454e84a4b2b01e56185a/FLAG1f9af9ef3 [2024-12-02 05:49:54,363 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 05:49:54,364 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/sv-benchmarks/c/ldv-sets/test_mutex.i [2024-12-02 05:49:54,374 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/data/39c691718/94355c51eb80454e84a4b2b01e56185a/FLAG1f9af9ef3 [2024-12-02 05:49:54,696 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/data/39c691718/94355c51eb80454e84a4b2b01e56185a [2024-12-02 05:49:54,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 05:49:54,699 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 05:49:54,700 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 05:49:54,700 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 05:49:54,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 05:49:54,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:49:54" (1/1) ... [2024-12-02 05:49:54,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1443941e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:54, skipping insertion in model container [2024-12-02 05:49:54,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:49:54" (1/1) ... [2024-12-02 05:49:54,730 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 05:49:54,977 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_08ba9b4f-846e-449f-8921-989fb238ffb4/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2024-12-02 05:49:54,981 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_08ba9b4f-846e-449f-8921-989fb238ffb4/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2024-12-02 05:49:54,982 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_08ba9b4f-846e-449f-8921-989fb238ffb4/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2024-12-02 05:49:54,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:49:54,993 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 05:49:55,039 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_08ba9b4f-846e-449f-8921-989fb238ffb4/sv-benchmarks/c/ldv-sets/test_mutex.i[25842,25855] [2024-12-02 05:49:55,039 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_08ba9b4f-846e-449f-8921-989fb238ffb4/sv-benchmarks/c/ldv-sets/test_mutex.i[25967,25980] [2024-12-02 05:49:55,040 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_08ba9b4f-846e-449f-8921-989fb238ffb4/sv-benchmarks/c/ldv-sets/test_mutex.i[26082,26095] [2024-12-02 05:49:55,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:49:55,065 INFO L204 MainTranslator]: Completed translation [2024-12-02 05:49:55,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:55 WrapperNode [2024-12-02 05:49:55,066 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 05:49:55,067 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 05:49:55,067 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 05:49:55,067 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 05:49:55,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:55" (1/1) ... [2024-12-02 05:49:55,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:55" (1/1) ... [2024-12-02 05:49:55,104 INFO L138 Inliner]: procedures = 139, calls = 57, calls flagged for inlining = 14, calls inlined = 13, statements flattened = 139 [2024-12-02 05:49:55,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 05:49:55,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 05:49:55,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 05:49:55,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 05:49:55,112 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:55" (1/1) ... [2024-12-02 05:49:55,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:55" (1/1) ... [2024-12-02 05:49:55,115 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:55" (1/1) ... [2024-12-02 05:49:55,141 INFO L175 MemorySlicer]: Split 22 memory accesses to 2 slices as follows [2, 20]. 91 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2]. The 7 writes are split as follows [0, 7]. [2024-12-02 05:49:55,141 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:55" (1/1) ... [2024-12-02 05:49:55,141 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:55" (1/1) ... [2024-12-02 05:49:55,150 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:55" (1/1) ... [2024-12-02 05:49:55,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:55" (1/1) ... [2024-12-02 05:49:55,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:55" (1/1) ... [2024-12-02 05:49:55,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:55" (1/1) ... [2024-12-02 05:49:55,157 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:55" (1/1) ... [2024-12-02 05:49:55,160 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 05:49:55,161 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 05:49:55,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 05:49:55,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 05:49:55,162 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:55" (1/1) ... [2024-12-02 05:49:55,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 05:49:55,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:49:55,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 05:49:55,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 05:49:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2024-12-02 05:49:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2024-12-02 05:49:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-12-02 05:49:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-12-02 05:49:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 05:49:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-12-02 05:49:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-12-02 05:49:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 05:49:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 05:49:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 05:49:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2024-12-02 05:49:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2024-12-02 05:49:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 05:49:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 05:49:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 05:49:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 05:49:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 05:49:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 05:49:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 05:49:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2024-12-02 05:49:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2024-12-02 05:49:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 05:49:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 05:49:55,337 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 05:49:55,338 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 05:49:55,603 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-12-02 05:49:55,603 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 05:49:55,613 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 05:49:55,613 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 05:49:55,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:49:55 BoogieIcfgContainer [2024-12-02 05:49:55,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 05:49:55,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 05:49:55,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 05:49:55,619 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 05:49:55,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:49:54" (1/3) ... [2024-12-02 05:49:55,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7069fd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:49:55, skipping insertion in model container [2024-12-02 05:49:55,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:49:55" (2/3) ... [2024-12-02 05:49:55,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7069fd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:49:55, skipping insertion in model container [2024-12-02 05:49:55,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:49:55" (3/3) ... [2024-12-02 05:49:55,621 INFO L128 eAbstractionObserver]: Analyzing ICFG test_mutex.i [2024-12-02 05:49:55,632 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 05:49:55,633 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test_mutex.i that has 6 procedures, 71 locations, 1 initial locations, 2 loop locations, and 3 error locations. [2024-12-02 05:49:55,679 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 05:49:55,689 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;@1c8cf618, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 05:49:55,689 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-12-02 05:49:55,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 54 states have internal predecessors, (65), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:49:55,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-02 05:49:55,697 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:55,697 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:49:55,698 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:55,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:55,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1283931562, now seen corresponding path program 1 times [2024-12-02 05:49:55,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:55,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033368771] [2024-12-02 05:49:55,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:55,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:55,884 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 05:49:55,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:55,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033368771] [2024-12-02 05:49:55,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033368771] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:49:55,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424741616] [2024-12-02 05:49:55,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:55,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:49:55,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:49:55,889 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:49:55,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 05:49:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:56,010 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 05:49:56,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:49:56,025 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 05:49:56,025 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:49:56,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424741616] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:56,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:49:56,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 05:49:56,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032338576] [2024-12-02 05:49:56,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:56,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 05:49:56,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:56,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 05:49:56,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 05:49:56,048 INFO L87 Difference]: Start difference. First operand has 71 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 54 states have internal predecessors, (65), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 05:49:56,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:56,070 INFO L93 Difference]: Finished difference Result 138 states and 179 transitions. [2024-12-02 05:49:56,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 05:49:56,071 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2024-12-02 05:49:56,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:56,077 INFO L225 Difference]: With dead ends: 138 [2024-12-02 05:49:56,077 INFO L226 Difference]: Without dead ends: 66 [2024-12-02 05:49:56,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 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 05:49:56,084 INFO L435 NwaCegarLoop]: 81 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, 81 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 05:49:56,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:56,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-12-02 05:49:56,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-12-02 05:49:56,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 47 states have (on average 1.148936170212766) internal successors, (54), 49 states have internal predecessors, (54), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 05:49:56,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2024-12-02 05:49:56,115 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 28 [2024-12-02 05:49:56,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:56,115 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2024-12-02 05:49:56,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 05:49:56,115 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2024-12-02 05:49:56,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-02 05:49:56,117 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:56,117 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:49:56,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 05:49:56,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 05:49:56,318 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:56,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:56,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1542575126, now seen corresponding path program 1 times [2024-12-02 05:49:56,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:56,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254758393] [2024-12-02 05:49:56,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:56,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:56,468 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 05:49:56,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:56,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254758393] [2024-12-02 05:49:56,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254758393] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:56,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:56,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 05:49:56,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413202697] [2024-12-02 05:49:56,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:56,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:49:56,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:56,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:49:56,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:49:56,471 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 05:49:56,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:56,492 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2024-12-02 05:49:56,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:49:56,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2024-12-02 05:49:56,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:56,495 INFO L225 Difference]: With dead ends: 72 [2024-12-02 05:49:56,495 INFO L226 Difference]: Without dead ends: 70 [2024-12-02 05:49:56,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:49:56,496 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:56,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 219 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:56,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-12-02 05:49:56,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-12-02 05:49:56,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 50 states have (on average 1.14) internal successors, (57), 52 states have internal predecessors, (57), 11 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (14), 12 states have call predecessors, (14), 11 states have call successors, (14) [2024-12-02 05:49:56,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions. [2024-12-02 05:49:56,507 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 82 transitions. Word has length 28 [2024-12-02 05:49:56,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:56,507 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 82 transitions. [2024-12-02 05:49:56,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 05:49:56,508 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 82 transitions. [2024-12-02 05:49:56,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-02 05:49:56,508 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:56,508 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:49:56,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 05:49:56,509 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:56,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:56,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1551004342, now seen corresponding path program 1 times [2024-12-02 05:49:56,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:56,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865230038] [2024-12-02 05:49:56,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:56,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:56,824 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 05:49:56,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:56,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865230038] [2024-12-02 05:49:56,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865230038] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:56,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 05:49:56,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 05:49:56,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873338696] [2024-12-02 05:49:56,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:56,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 05:49:56,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:56,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:49:56,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:49:56,826 INFO L87 Difference]: Start difference. First operand 70 states and 82 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 05:49:57,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:57,175 INFO L93 Difference]: Finished difference Result 198 states and 248 transitions. [2024-12-02 05:49:57,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 05:49:57,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-12-02 05:49:57,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:57,177 INFO L225 Difference]: With dead ends: 198 [2024-12-02 05:49:57,178 INFO L226 Difference]: Without dead ends: 136 [2024-12-02 05:49:57,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-12-02 05:49:57,179 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 78 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:57,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 220 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 05:49:57,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-12-02 05:49:57,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 113. [2024-12-02 05:49:57,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 81 states have (on average 1.1728395061728396) internal successors, (95), 85 states have internal predecessors, (95), 18 states have call successors, (18), 9 states have call predecessors, (18), 11 states have return successors, (26), 18 states have call predecessors, (26), 18 states have call successors, (26) [2024-12-02 05:49:57,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 139 transitions. [2024-12-02 05:49:57,200 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 139 transitions. Word has length 29 [2024-12-02 05:49:57,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:57,200 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 139 transitions. [2024-12-02 05:49:57,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 05:49:57,200 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 139 transitions. [2024-12-02 05:49:57,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-12-02 05:49:57,202 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:57,203 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:49:57,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 05:49:57,203 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:57,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:57,203 INFO L85 PathProgramCache]: Analyzing trace with hash -625622452, now seen corresponding path program 1 times [2024-12-02 05:49:57,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:57,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731363811] [2024-12-02 05:49:57,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:57,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:57,303 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 05:49:57,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:57,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731363811] [2024-12-02 05:49:57,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731363811] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:49:57,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137457785] [2024-12-02 05:49:57,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:57,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:49:57,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:49:57,305 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:49:57,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 05:49:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:57,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 05:49:57,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:49:57,476 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-02 05:49:57,476 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:49:57,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137457785] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:57,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:49:57,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-12-02 05:49:57,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186803591] [2024-12-02 05:49:57,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:57,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 05:49:57,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:57,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:49:57,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:49:57,478 INFO L87 Difference]: Start difference. First operand 113 states and 139 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 05:49:57,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:49:57,509 INFO L93 Difference]: Finished difference Result 205 states and 252 transitions. [2024-12-02 05:49:57,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:49:57,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 72 [2024-12-02 05:49:57,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:49:57,511 INFO L225 Difference]: With dead ends: 205 [2024-12-02 05:49:57,512 INFO L226 Difference]: Without dead ends: 119 [2024-12-02 05:49:57,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:49:57,513 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 05:49:57,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 217 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 05:49:57,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-12-02 05:49:57,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-12-02 05:49:57,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 86 states have (on average 1.1627906976744187) internal successors, (100), 89 states have internal predecessors, (100), 18 states have call successors, (18), 9 states have call predecessors, (18), 12 states have return successors, (27), 20 states have call predecessors, (27), 18 states have call successors, (27) [2024-12-02 05:49:57,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 145 transitions. [2024-12-02 05:49:57,534 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 145 transitions. Word has length 72 [2024-12-02 05:49:57,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:49:57,535 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 145 transitions. [2024-12-02 05:49:57,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 05:49:57,535 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 145 transitions. [2024-12-02 05:49:57,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-02 05:49:57,537 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:49:57,537 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:49:57,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 05:49:57,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:49:57,738 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:49:57,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:49:57,738 INFO L85 PathProgramCache]: Analyzing trace with hash -530228854, now seen corresponding path program 1 times [2024-12-02 05:49:57,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:49:57,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511184329] [2024-12-02 05:49:57,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:57,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:49:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:58,222 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-02 05:49:58,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:49:58,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511184329] [2024-12-02 05:49:58,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511184329] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:49:58,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599134934] [2024-12-02 05:49:58,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:49:58,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:49:58,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:49:58,224 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:49:58,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 05:49:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:49:58,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-02 05:49:58,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:49:59,209 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-02 05:49:59,209 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 05:49:59,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599134934] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 05:49:59,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 05:49:59,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2024-12-02 05:49:59,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284033833] [2024-12-02 05:49:59,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 05:49:59,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 05:49:59,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:49:59,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 05:49:59,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-12-02 05:49:59,211 INFO L87 Difference]: Start difference. First operand 119 states and 145 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 05:50:00,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:00,057 INFO L93 Difference]: Finished difference Result 272 states and 331 transitions. [2024-12-02 05:50:00,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 05:50:00,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 74 [2024-12-02 05:50:00,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:00,060 INFO L225 Difference]: With dead ends: 272 [2024-12-02 05:50:00,060 INFO L226 Difference]: Without dead ends: 149 [2024-12-02 05:50:00,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-12-02 05:50:00,062 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 192 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:00,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 296 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 05:50:00,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-12-02 05:50:00,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 112. [2024-12-02 05:50:00,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 82 states have (on average 1.1219512195121952) internal successors, (92), 86 states have internal predecessors, (92), 15 states have call successors, (15), 9 states have call predecessors, (15), 12 states have return successors, (23), 16 states have call predecessors, (23), 15 states have call successors, (23) [2024-12-02 05:50:00,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 130 transitions. [2024-12-02 05:50:00,083 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 130 transitions. Word has length 74 [2024-12-02 05:50:00,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:00,083 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 130 transitions. [2024-12-02 05:50:00,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (9), 4 states have call predecessors, (9), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-12-02 05:50:00,084 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 130 transitions. [2024-12-02 05:50:00,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 05:50:00,084 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:00,085 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:00,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 05:50:00,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:50:00,285 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:00,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:00,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1999190575, now seen corresponding path program 1 times [2024-12-02 05:50:00,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:00,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652443181] [2024-12-02 05:50:00,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:00,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:05,307 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 05:50:05,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:05,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652443181] [2024-12-02 05:50:05,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652443181] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:50:05,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479786541] [2024-12-02 05:50:05,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:05,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:50:05,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:50:05,311 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:50:05,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 05:50:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:05,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 150 conjuncts are in the unsatisfiable core [2024-12-02 05:50:05,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:50:05,724 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-12-02 05:50:05,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2024-12-02 05:50:06,064 INFO L349 Elim1Store]: treesize reduction 48, result has 28.4 percent of original size [2024-12-02 05:50:06,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 28 [2024-12-02 05:50:07,047 INFO L349 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2024-12-02 05:50:07,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 236 [2024-12-02 05:50:07,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-12-02 05:50:07,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-12-02 05:50:07,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-12-02 05:50:07,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:07,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 05:50:07,210 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:07,215 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:07,230 INFO L349 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2024-12-02 05:50:07,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 122 treesize of output 102 [2024-12-02 05:50:07,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-12-02 05:50:07,327 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:07,333 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:07,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 42 [2024-12-02 05:50:07,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-12-02 05:50:07,541 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:07,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 12 [2024-12-02 05:50:09,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:09,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:09,249 INFO L349 Elim1Store]: treesize reduction 203, result has 0.5 percent of original size [2024-12-02 05:50:09,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 315 treesize of output 257 [2024-12-02 05:50:09,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:09,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:09,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 61 [2024-12-02 05:50:09,286 INFO L349 Elim1Store]: treesize reduction 27, result has 27.0 percent of original size [2024-12-02 05:50:09,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 20 [2024-12-02 05:50:09,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 23 [2024-12-02 05:50:09,327 INFO L349 Elim1Store]: treesize reduction 27, result has 32.5 percent of original size [2024-12-02 05:50:09,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 27 treesize of output 17 [2024-12-02 05:50:10,342 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 05:50:10,342 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:50:11,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479786541] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:50:11,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 05:50:11,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 30] total 61 [2024-12-02 05:50:11,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450087837] [2024-12-02 05:50:11,488 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 05:50:11,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-12-02 05:50:11,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 05:50:11,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-12-02 05:50:11,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=4296, Unknown=8, NotChecked=0, Total=4556 [2024-12-02 05:50:11,494 INFO L87 Difference]: Start difference. First operand 112 states and 130 transitions. Second operand has 61 states, 50 states have (on average 1.74) internal successors, (87), 44 states have internal predecessors, (87), 17 states have call successors, (18), 11 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-12-02 05:50:19,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:50:19,384 INFO L93 Difference]: Finished difference Result 258 states and 304 transitions. [2024-12-02 05:50:19,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-12-02 05:50:19,385 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 50 states have (on average 1.74) internal successors, (87), 44 states have internal predecessors, (87), 17 states have call successors, (18), 11 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 64 [2024-12-02 05:50:19,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 05:50:19,386 INFO L225 Difference]: With dead ends: 258 [2024-12-02 05:50:19,387 INFO L226 Difference]: Without dead ends: 173 [2024-12-02 05:50:19,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2014 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=679, Invalid=9413, Unknown=8, NotChecked=0, Total=10100 [2024-12-02 05:50:19,389 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 241 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 3159 mSolverCounterSat, 62 mSolverCounterUnsat, 46 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 2115 SdHoareTripleChecker+Invalid, 3267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3159 IncrementalHoareTripleChecker+Invalid, 46 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-02 05:50:19,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 2115 Invalid, 3267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3159 Invalid, 46 Unknown, 0 Unchecked, 4.2s Time] [2024-12-02 05:50:19,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-12-02 05:50:19,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 139. [2024-12-02 05:50:19,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 104 states have (on average 1.1634615384615385) internal successors, (121), 109 states have internal predecessors, (121), 17 states have call successors, (17), 11 states have call predecessors, (17), 15 states have return successors, (26), 18 states have call predecessors, (26), 17 states have call successors, (26) [2024-12-02 05:50:19,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 164 transitions. [2024-12-02 05:50:19,413 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 164 transitions. Word has length 64 [2024-12-02 05:50:19,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 05:50:19,413 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 164 transitions. [2024-12-02 05:50:19,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 50 states have (on average 1.74) internal successors, (87), 44 states have internal predecessors, (87), 17 states have call successors, (18), 11 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-12-02 05:50:19,414 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions. [2024-12-02 05:50:19,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 05:50:19,415 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 05:50:19,415 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 05:50:19,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 05:50:19,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:50:19,616 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 05:50:19,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:50:19,617 INFO L85 PathProgramCache]: Analyzing trace with hash 36482812, now seen corresponding path program 1 times [2024-12-02 05:50:19,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 05:50:19,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532670716] [2024-12-02 05:50:19,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:19,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:50:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:21,345 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 19 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 05:50:21,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 05:50:21,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532670716] [2024-12-02 05:50:21,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532670716] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:50:21,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435997435] [2024-12-02 05:50:21,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:50:21,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:50:21,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:50:21,347 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:50:21,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08ba9b4f-846e-449f-8921-989fb238ffb4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 05:50:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:50:21,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 147 conjuncts are in the unsatisfiable core [2024-12-02 05:50:21,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:50:21,793 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 05:50:21,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 05:50:22,067 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 05:50:22,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 05:50:22,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 52 [2024-12-02 05:50:22,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 161 [2024-12-02 05:50:22,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:22,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:22,661 INFO L349 Elim1Store]: treesize reduction 21, result has 52.3 percent of original size [2024-12-02 05:50:22,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 48 [2024-12-02 05:50:22,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 56 [2024-12-02 05:50:22,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 61 [2024-12-02 05:50:22,757 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:22,757 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:22,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 29 [2024-12-02 05:50:22,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:22,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2024-12-02 05:50:22,873 INFO L349 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2024-12-02 05:50:22,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 71 [2024-12-02 05:50:22,891 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:22,965 INFO L349 Elim1Store]: treesize reduction 38, result has 32.1 percent of original size [2024-12-02 05:50:22,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 95 treesize of output 108 [2024-12-02 05:50:22,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 54 [2024-12-02 05:50:23,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:23,159 INFO L349 Elim1Store]: treesize reduction 42, result has 36.4 percent of original size [2024-12-02 05:50:23,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 279 treesize of output 191 [2024-12-02 05:50:23,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 56 [2024-12-02 05:50:23,723 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:23,724 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:23,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2024-12-02 05:50:23,731 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:23,731 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:23,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 29 [2024-12-02 05:50:23,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:23,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2024-12-02 05:50:23,819 INFO L349 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2024-12-02 05:50:23,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 71 [2024-12-02 05:50:23,827 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:23,832 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-12-02 05:50:23,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 67 [2024-12-02 05:50:23,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 28 [2024-12-02 05:50:23,852 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:23,869 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2024-12-02 05:50:23,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 38 [2024-12-02 05:50:23,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-12-02 05:50:23,923 INFO L349 Elim1Store]: treesize reduction 32, result has 41.8 percent of original size [2024-12-02 05:50:23,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 36 [2024-12-02 05:50:24,048 INFO L349 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2024-12-02 05:50:24,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 79 [2024-12-02 05:50:24,062 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:24,068 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-12-02 05:50:24,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 79 treesize of output 75 [2024-12-02 05:50:24,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2024-12-02 05:50:24,097 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:24,128 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2024-12-02 05:50:24,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 42 [2024-12-02 05:50:24,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 10 treesize of output 9 [2024-12-02 05:50:24,234 INFO L349 Elim1Store]: treesize reduction 36, result has 46.3 percent of original size [2024-12-02 05:50:24,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 46 [2024-12-02 05:50:24,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 56 [2024-12-02 05:50:24,334 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:24,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 59 [2024-12-02 05:50:24,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2024-12-02 05:50:24,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:24,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2024-12-02 05:50:24,462 INFO L349 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2024-12-02 05:50:24,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 71 [2024-12-02 05:50:24,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2024-12-02 05:50:26,150 INFO L349 Elim1Store]: treesize reduction 29, result has 39.6 percent of original size [2024-12-02 05:50:26,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 71 [2024-12-02 05:50:26,217 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:26,224 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-12-02 05:50:26,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 91 [2024-12-02 05:50:26,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:26,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 49 [2024-12-02 05:50:26,290 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:26,321 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2024-12-02 05:50:26,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 61 [2024-12-02 05:50:26,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2024-12-02 05:50:26,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:26,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:26,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:26,400 INFO L349 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2024-12-02 05:50:26,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 55 [2024-12-02 05:50:26,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 56 [2024-12-02 05:50:26,613 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:26,613 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:26,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2024-12-02 05:50:26,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:26,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:26,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:26,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 55 [2024-12-02 05:50:27,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 56 [2024-12-02 05:50:27,269 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:27,270 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:27,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2024-12-02 05:50:27,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:27,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:27,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:27,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 28 [2024-12-02 05:50:27,503 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:27,503 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:27,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 32 [2024-12-02 05:50:27,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:27,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:27,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 39 [2024-12-02 05:50:28,239 INFO L349 Elim1Store]: treesize reduction 33, result has 31.3 percent of original size [2024-12-02 05:50:28,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 67 [2024-12-02 05:50:28,399 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:28,632 INFO L349 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2024-12-02 05:50:28,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 91 treesize of output 92 [2024-12-02 05:50:29,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2024-12-02 05:50:29,261 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-02 05:50:29,285 INFO L349 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2024-12-02 05:50:29,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 78 treesize of output 50 [2024-12-02 05:50:29,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 05:50:29,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-12-02 05:50:51,097 WARN L286 SmtUtils]: Spent 15.60s on a formula simplification. DAG size of input: 350 DAG size of output: 296 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 05:50:56,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 104 [2024-12-02 05:50:56,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 152 [2024-12-02 05:50:56,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 50 [2024-12-02 05:50:57,137 INFO L349 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2024-12-02 05:50:57,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 1 [2024-12-02 05:50:57,164 INFO L349 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2024-12-02 05:50:57,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 1 [2024-12-02 05:50:57,276 INFO L349 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2024-12-02 05:50:57,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 1 [2024-12-02 05:50:57,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 45 [2024-12-02 05:50:57,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2024-12-02 05:53:04,720 WARN L286 SmtUtils]: Spent 25.86s on a formula simplification. DAG size of input: 385 DAG size of output: 374 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 05:53:21,074 INFO L190 IndexEqualityManager]: detected not equals via solver