./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82b5a2c-28f5-4c67-9c74-beca2a25920f/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82b5a2c-28f5-4c67-9c74-beca2a25920f/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_d82b5a2c-28f5-4c67-9c74-beca2a25920f/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82b5a2c-28f5-4c67-9c74-beca2a25920f/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82b5a2c-28f5-4c67-9c74-beca2a25920f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82b5a2c-28f5-4c67-9c74-beca2a25920f/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:00:06,731 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:00:06,788 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82b5a2c-28f5-4c67-9c74-beca2a25920f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-02 11:00:06,793 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:00:06,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:00:06,816 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:00:06,816 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:00:06,816 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:00:06,817 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:00:06,817 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:00:06,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:00:06,817 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:00:06,817 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:00:06,818 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:00:06,818 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:00:06,818 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:00:06,818 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:00:06,818 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:00:06,818 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:00:06,818 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:00:06,818 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 11:00:06,818 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 11:00:06,818 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-02 11:00:06,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:00:06,819 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 11:00:06,819 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 11:00:06,819 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:00:06,819 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:00:06,819 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:00:06,819 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:00:06,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:00:06,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:00:06,819 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:00:06,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:00:06,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:00:06,820 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:00:06,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:00:06,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:00:06,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:00:06,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:00:06,820 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:00:06,820 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:00:06,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:00:06,820 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:00:06,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:00:06,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:00:06,821 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:00:06,821 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_d82b5a2c-28f5-4c67-9c74-beca2a25920f/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b [2024-12-02 11:00:07,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:00:07,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:00:07,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:00:07,075 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:00:07,075 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:00:07,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82b5a2c-28f5-4c67-9c74-beca2a25920f/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2024-12-02 11:00:09,849 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82b5a2c-28f5-4c67-9c74-beca2a25920f/bin/uautomizer-verify-84ZbGMXZE1/data/3f777613e/9df2a7a7b2a848e684b3e7450484f6fb/FLAGdaa67f559 [2024-12-02 11:00:10,140 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:00:10,141 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82b5a2c-28f5-4c67-9c74-beca2a25920f/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2024-12-02 11:00:10,154 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82b5a2c-28f5-4c67-9c74-beca2a25920f/bin/uautomizer-verify-84ZbGMXZE1/data/3f777613e/9df2a7a7b2a848e684b3e7450484f6fb/FLAGdaa67f559 [2024-12-02 11:00:10,434 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82b5a2c-28f5-4c67-9c74-beca2a25920f/bin/uautomizer-verify-84ZbGMXZE1/data/3f777613e/9df2a7a7b2a848e684b3e7450484f6fb [2024-12-02 11:00:10,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:00:10,437 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:00:10,438 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:00:10,438 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:00:10,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:00:10,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:00:10" (1/1) ... [2024-12-02 11:00:10,443 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ccc9cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:10, skipping insertion in model container [2024-12-02 11:00:10,443 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:00:10" (1/1) ... [2024-12-02 11:00:10,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:00:10,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:00:10,872 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:00:10,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:00:10,984 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:00:10,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:10 WrapperNode [2024-12-02 11:00:10,985 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:00:10,986 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:00:10,986 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:00:10,986 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:00:10,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:10" (1/1) ... [2024-12-02 11:00:11,004 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:10" (1/1) ... [2024-12-02 11:00:11,029 INFO L138 Inliner]: procedures = 280, calls = 97, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 357 [2024-12-02 11:00:11,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:00:11,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:00:11,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:00:11,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:00:11,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:10" (1/1) ... [2024-12-02 11:00:11,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:10" (1/1) ... [2024-12-02 11:00:11,044 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:10" (1/1) ... [2024-12-02 11:00:11,071 INFO L175 MemorySlicer]: Split 51 memory accesses to 9 slices as follows [2, 2, 5, 5, 5, 23, 2, 5, 2]. 45 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 5, 5, 5, 0, 0, 5, 0]. The 15 writes are split as follows [0, 1, 0, 0, 0, 12, 1, 0, 1]. [2024-12-02 11:00:11,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:10" (1/1) ... [2024-12-02 11:00:11,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:10" (1/1) ... [2024-12-02 11:00:11,088 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:10" (1/1) ... [2024-12-02 11:00:11,089 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:10" (1/1) ... [2024-12-02 11:00:11,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:10" (1/1) ... [2024-12-02 11:00:11,098 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:10" (1/1) ... [2024-12-02 11:00:11,100 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:10" (1/1) ... [2024-12-02 11:00:11,105 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:00:11,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:00:11,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:00:11,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:00:11,107 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:10" (1/1) ... [2024-12-02 11:00:11,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:00:11,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82b5a2c-28f5-4c67-9c74-beca2a25920f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:00:11,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82b5a2c-28f5-4c67-9c74-beca2a25920f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:00:11,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82b5a2c-28f5-4c67-9c74-beca2a25920f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:00:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 11:00:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 11:00:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 11:00:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 11:00:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 11:00:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 11:00:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 11:00:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 11:00:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 11:00:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 11:00:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-12-02 11:00:11,160 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-12-02 11:00:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 11:00:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 11:00:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 11:00:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 11:00:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 11:00:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 11:00:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 11:00:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 11:00:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 11:00:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 11:00:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 11:00:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-12-02 11:00:11,160 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-12-02 11:00:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 11:00:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 11:00:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 11:00:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 11:00:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 11:00:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 11:00:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 11:00:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 11:00:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 11:00:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 11:00:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 11:00:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:00:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 11:00:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 11:00:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 11:00:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 11:00:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 11:00:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 11:00:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 11:00:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 11:00:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 11:00:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-12-02 11:00:11,162 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-12-02 11:00:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:00:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:00:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:00:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 11:00:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 11:00:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 11:00:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 11:00:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 11:00:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 11:00:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:00:11,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:00:11,165 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 11:00:11,350 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:00:11,352 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:00:11,919 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 11:00:11,919 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:00:12,128 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:00:12,128 INFO L312 CfgBuilder]: Removed 18 assume(true) statements. [2024-12-02 11:00:12,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:00:12 BoogieIcfgContainer [2024-12-02 11:00:12,129 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:00:12,131 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:00:12,131 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:00:12,135 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:00:12,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:00:10" (1/3) ... [2024-12-02 11:00:12,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9e535a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:00:12, skipping insertion in model container [2024-12-02 11:00:12,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:10" (2/3) ... [2024-12-02 11:00:12,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9e535a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:00:12, skipping insertion in model container [2024-12-02 11:00:12,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:00:12" (3/3) ... [2024-12-02 11:00:12,138 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2024-12-02 11:00:12,153 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:00:12,154 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_85-list2_racefree.i that has 4 procedures, 189 locations, 1 initial locations, 18 loop locations, and 61 error locations. [2024-12-02 11:00:12,155 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 11:00:12,275 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-12-02 11:00:12,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 230 transitions, 499 flow [2024-12-02 11:00:12,501 INFO L124 PetriNetUnfolderBase]: 126/749 cut-off events. [2024-12-02 11:00:12,503 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-12-02 11:00:12,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 749 events. 126/749 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5612 event pairs, 0 based on Foata normal form. 0/423 useless extension candidates. Maximal degree in co-relation 388. Up to 16 conditions per place. [2024-12-02 11:00:12,515 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 230 transitions, 499 flow [2024-12-02 11:00:12,528 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 230 transitions, 499 flow [2024-12-02 11:00:12,535 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:00:12,545 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=None, 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;@47bac0e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:00:12,545 INFO L334 AbstractCegarLoop]: Starting to check reachability of 104 error locations. [2024-12-02 11:00:12,549 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 11:00:12,550 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2024-12-02 11:00:12,550 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 11:00:12,550 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:00:12,550 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-12-02 11:00:12,551 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-12-02 11:00:12,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:00:12,555 INFO L85 PathProgramCache]: Analyzing trace with hash 32362, now seen corresponding path program 1 times [2024-12-02 11:00:12,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:00:12,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681843496] [2024-12-02 11:00:12,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:12,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:00:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:00:12,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:00:12,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:00:12,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681843496] [2024-12-02 11:00:12,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681843496] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:00:12,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:00:12,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 11:00:12,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474843094] [2024-12-02 11:00:12,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:00:12,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:00:12,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:00:12,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:00:12,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:00:12,953 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 230 [2024-12-02 11:00:12,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 230 transitions, 499 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:00:12,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:00:12,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 230 [2024-12-02 11:00:12,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:00:35,151 INFO L124 PetriNetUnfolderBase]: 153559/282326 cut-off events. [2024-12-02 11:00:35,151 INFO L125 PetriNetUnfolderBase]: For 8674/8674 co-relation queries the response was YES. [2024-12-02 11:00:35,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 495216 conditions, 282326 events. 153559/282326 cut-off events. For 8674/8674 co-relation queries the response was YES. Maximal size of possible extension queue 5879. Compared 3138988 event pairs, 141756 based on Foata normal form. 31418/282528 useless extension candidates. Maximal degree in co-relation 422808. Up to 208485 conditions per place. [2024-12-02 11:00:37,000 INFO L140 encePairwiseOnDemand]: 198/230 looper letters, 93 selfloop transitions, 2 changer transitions 0/198 dead transitions. [2024-12-02 11:00:37,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 198 transitions, 625 flow [2024-12-02 11:00:37,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:00:37,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 11:00:37,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 434 transitions. [2024-12-02 11:00:37,014 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6289855072463768 [2024-12-02 11:00:37,016 INFO L175 Difference]: Start difference. First operand has 198 places, 230 transitions, 499 flow. Second operand 3 states and 434 transitions. [2024-12-02 11:00:37,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 198 transitions, 625 flow [2024-12-02 11:00:37,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 198 transitions, 625 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 11:00:37,138 INFO L231 Difference]: Finished difference. Result has 194 places, 198 transitions, 439 flow [2024-12-02 11:00:37,141 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=439, PETRI_PLACES=194, PETRI_TRANSITIONS=198} [2024-12-02 11:00:37,144 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, -4 predicate places. [2024-12-02 11:00:37,145 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 198 transitions, 439 flow [2024-12-02 11:00:37,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:00:37,145 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:00:37,145 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-12-02 11:00:37,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:00:37,145 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-12-02 11:00:37,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:00:37,146 INFO L85 PathProgramCache]: Analyzing trace with hash 32363, now seen corresponding path program 1 times [2024-12-02 11:00:37,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:00:37,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194319951] [2024-12-02 11:00:37,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:37,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:00:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:00:37,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:00:37,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:00:37,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194319951] [2024-12-02 11:00:37,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194319951] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:00:37,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:00:37,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 11:00:37,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113063390] [2024-12-02 11:00:37,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:00:37,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:00:37,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:00:37,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:00:37,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:00:37,386 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 230 [2024-12-02 11:00:37,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 198 transitions, 439 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:00:37,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:00:37,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 230 [2024-12-02 11:00:37,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:00:58,424 INFO L124 PetriNetUnfolderBase]: 153559/282322 cut-off events. [2024-12-02 11:00:58,424 INFO L125 PetriNetUnfolderBase]: For 8675/8675 co-relation queries the response was YES. [2024-12-02 11:00:59,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 495213 conditions, 282322 events. 153559/282322 cut-off events. For 8675/8675 co-relation queries the response was YES. Maximal size of possible extension queue 5879. Compared 3138607 event pairs, 141756 based on Foata normal form. 3/251109 useless extension candidates. Maximal degree in co-relation 495197. Up to 208485 conditions per place. [2024-12-02 11:01:00,123 INFO L140 encePairwiseOnDemand]: 224/230 looper letters, 91 selfloop transitions, 2 changer transitions 0/194 dead transitions. [2024-12-02 11:01:00,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 194 transitions, 617 flow [2024-12-02 11:01:00,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:01:00,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 11:01:00,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 412 transitions. [2024-12-02 11:01:00,126 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5971014492753624 [2024-12-02 11:01:00,126 INFO L175 Difference]: Start difference. First operand has 194 places, 198 transitions, 439 flow. Second operand 3 states and 412 transitions. [2024-12-02 11:01:00,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 194 transitions, 617 flow [2024-12-02 11:01:00,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 194 transitions, 613 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 11:01:00,265 INFO L231 Difference]: Finished difference. Result has 190 places, 194 transitions, 431 flow [2024-12-02 11:01:00,266 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=431, PETRI_PLACES=190, PETRI_TRANSITIONS=194} [2024-12-02 11:01:00,266 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, -8 predicate places. [2024-12-02 11:01:00,266 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 194 transitions, 431 flow [2024-12-02 11:01:00,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:01:00,267 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:01:00,267 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:01:00,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:01:00,267 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-12-02 11:01:00,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:01:00,267 INFO L85 PathProgramCache]: Analyzing trace with hash -270112970, now seen corresponding path program 1 times [2024-12-02 11:01:00,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:01:00,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899720310] [2024-12-02 11:01:00,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:01:00,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:01:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:01:00,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:01:00,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:01:00,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899720310] [2024-12-02 11:01:00,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899720310] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:01:00,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:01:00,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:01:00,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596429187] [2024-12-02 11:01:00,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:01:00,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:01:00,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:01:00,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:01:00,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:01:00,506 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 230 [2024-12-02 11:01:00,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 194 transitions, 431 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:01:00,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:01:00,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 230 [2024-12-02 11:01:00,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:01:25,982 INFO L124 PetriNetUnfolderBase]: 171331/305090 cut-off events. [2024-12-02 11:01:25,982 INFO L125 PetriNetUnfolderBase]: For 8674/8674 co-relation queries the response was YES. [2024-12-02 11:01:26,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542857 conditions, 305090 events. 171331/305090 cut-off events. For 8674/8674 co-relation queries the response was YES. Maximal size of possible extension queue 6335. Compared 3345438 event pairs, 124188 based on Foata normal form. 0/273899 useless extension candidates. Maximal degree in co-relation 542841. Up to 183636 conditions per place. [2024-12-02 11:01:27,919 INFO L140 encePairwiseOnDemand]: 226/230 looper letters, 155 selfloop transitions, 2 changer transitions 0/254 dead transitions. [2024-12-02 11:01:27,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 254 transitions, 865 flow [2024-12-02 11:01:27,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:01:27,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 11:01:27,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2024-12-02 11:01:27,921 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6869565217391305 [2024-12-02 11:01:27,921 INFO L175 Difference]: Start difference. First operand has 190 places, 194 transitions, 431 flow. Second operand 3 states and 474 transitions. [2024-12-02 11:01:27,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 254 transitions, 865 flow [2024-12-02 11:01:28,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 254 transitions, 861 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 11:01:28,049 INFO L231 Difference]: Finished difference. Result has 188 places, 192 transitions, 427 flow [2024-12-02 11:01:28,050 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=427, PETRI_PLACES=188, PETRI_TRANSITIONS=192} [2024-12-02 11:01:28,051 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, -10 predicate places. [2024-12-02 11:01:28,051 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 192 transitions, 427 flow [2024-12-02 11:01:28,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:01:28,051 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:01:28,051 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:01:28,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:01:28,052 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-12-02 11:01:28,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:01:28,052 INFO L85 PathProgramCache]: Analyzing trace with hash -270112969, now seen corresponding path program 1 times [2024-12-02 11:01:28,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:01:28,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054624233] [2024-12-02 11:01:28,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:01:28,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:01:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:01:28,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:01:28,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:01:28,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054624233] [2024-12-02 11:01:28,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054624233] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:01:28,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:01:28,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:01:28,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519967693] [2024-12-02 11:01:28,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:01:28,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:01:28,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:01:28,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:01:28,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:01:28,307 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 230 [2024-12-02 11:01:28,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 192 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:01:28,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:01:28,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 230 [2024-12-02 11:01:28,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:01:50,426 INFO L124 PetriNetUnfolderBase]: 148430/274063 cut-off events. [2024-12-02 11:01:50,427 INFO L125 PetriNetUnfolderBase]: For 15666/15726 co-relation queries the response was YES. [2024-12-02 11:01:51,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486059 conditions, 274063 events. 148430/274063 cut-off events. For 15666/15726 co-relation queries the response was YES. Maximal size of possible extension queue 5810. Compared 3064437 event pairs, 130861 based on Foata normal form. 1/243969 useless extension candidates. Maximal degree in co-relation 428756. Up to 200922 conditions per place. [2024-12-02 11:01:52,174 INFO L140 encePairwiseOnDemand]: 225/230 looper letters, 94 selfloop transitions, 3 changer transitions 0/195 dead transitions. [2024-12-02 11:01:52,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 195 transitions, 627 flow [2024-12-02 11:01:52,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:01:52,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 11:01:52,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 423 transitions. [2024-12-02 11:01:52,177 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6130434782608696 [2024-12-02 11:01:52,177 INFO L175 Difference]: Start difference. First operand has 188 places, 192 transitions, 427 flow. Second operand 3 states and 423 transitions. [2024-12-02 11:01:52,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 195 transitions, 627 flow [2024-12-02 11:01:53,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 195 transitions, 623 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 11:01:53,351 INFO L231 Difference]: Finished difference. Result has 189 places, 194 transitions, 444 flow [2024-12-02 11:01:53,351 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=444, PETRI_PLACES=189, PETRI_TRANSITIONS=194} [2024-12-02 11:01:53,352 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, -9 predicate places. [2024-12-02 11:01:53,352 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 194 transitions, 444 flow [2024-12-02 11:01:53,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:01:53,353 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:01:53,353 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:01:53,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:01:53,353 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-12-02 11:01:53,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:01:53,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1834498705, now seen corresponding path program 1 times [2024-12-02 11:01:53,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:01:53,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102629153] [2024-12-02 11:01:53,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:01:53,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:01:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:01:53,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:01:53,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:01:53,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102629153] [2024-12-02 11:01:53,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102629153] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:01:53,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:01:53,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:01:53,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527886249] [2024-12-02 11:01:53,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:01:53,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:01:53,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:01:53,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:01:53,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:01:53,612 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 230 [2024-12-02 11:01:53,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 194 transitions, 444 flow. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:01:53,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:01:53,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 230 [2024-12-02 11:01:53,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:02:25,470 INFO L124 PetriNetUnfolderBase]: 208076/392683 cut-off events. [2024-12-02 11:02:25,471 INFO L125 PetriNetUnfolderBase]: For 17285/17345 co-relation queries the response was YES. [2024-12-02 11:02:26,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 685400 conditions, 392683 events. 208076/392683 cut-off events. For 17285/17345 co-relation queries the response was YES. Maximal size of possible extension queue 8300. Compared 4678770 event pairs, 161673 based on Foata normal form. 6959/346163 useless extension candidates. Maximal degree in co-relation 628938. Up to 254122 conditions per place. [2024-12-02 11:02:27,948 INFO L140 encePairwiseOnDemand]: 224/230 looper letters, 173 selfloop transitions, 5 changer transitions 0/275 dead transitions. [2024-12-02 11:02:27,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 275 transitions, 990 flow [2024-12-02 11:02:27,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:02:27,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 11:02:27,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2024-12-02 11:02:27,950 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7231884057971014 [2024-12-02 11:02:27,950 INFO L175 Difference]: Start difference. First operand has 189 places, 194 transitions, 444 flow. Second operand 3 states and 499 transitions. [2024-12-02 11:02:27,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 275 transitions, 990 flow [2024-12-02 11:02:27,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 275 transitions, 987 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 11:02:27,989 INFO L231 Difference]: Finished difference. Result has 191 places, 197 transitions, 474 flow [2024-12-02 11:02:27,990 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=441, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=474, PETRI_PLACES=191, PETRI_TRANSITIONS=197} [2024-12-02 11:02:27,990 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, -7 predicate places. [2024-12-02 11:02:27,990 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 197 transitions, 474 flow [2024-12-02 11:02:27,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:02:27,991 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:02:27,991 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:02:27,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:02:27,991 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-12-02 11:02:27,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:02:27,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1834498704, now seen corresponding path program 1 times [2024-12-02 11:02:27,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:02:27,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653022159] [2024-12-02 11:02:27,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:02:27,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:02:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:02:28,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:02:28,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:02:28,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653022159] [2024-12-02 11:02:28,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653022159] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:02:28,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:02:28,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:02:28,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843497827] [2024-12-02 11:02:28,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:02:28,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:02:28,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:02:28,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:02:28,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:02:28,186 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 230 [2024-12-02 11:02:28,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 197 transitions, 474 flow. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:02:28,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:02:28,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 230 [2024-12-02 11:02:28,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:03:08,713 INFO L124 PetriNetUnfolderBase]: 261257/474588 cut-off events. [2024-12-02 11:03:08,714 INFO L125 PetriNetUnfolderBase]: For 63478/70491 co-relation queries the response was YES. [2024-12-02 11:03:09,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 879411 conditions, 474588 events. 261257/474588 cut-off events. For 63478/70491 co-relation queries the response was YES. Maximal size of possible extension queue 9511. Compared 5498638 event pairs, 185348 based on Foata normal form. 13915/434956 useless extension candidates. Maximal degree in co-relation 822948. Up to 236849 conditions per place. [2024-12-02 11:03:11,680 INFO L140 encePairwiseOnDemand]: 224/230 looper letters, 177 selfloop transitions, 6 changer transitions 0/279 dead transitions. [2024-12-02 11:03:11,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 279 transitions, 1037 flow [2024-12-02 11:03:11,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:03:11,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 11:03:11,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 498 transitions. [2024-12-02 11:03:11,683 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7217391304347827 [2024-12-02 11:03:11,683 INFO L175 Difference]: Start difference. First operand has 191 places, 197 transitions, 474 flow. Second operand 3 states and 498 transitions. [2024-12-02 11:03:11,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 279 transitions, 1037 flow [2024-12-02 11:03:11,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 279 transitions, 1031 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 11:03:11,737 INFO L231 Difference]: Finished difference. Result has 194 places, 201 transitions, 517 flow [2024-12-02 11:03:11,737 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=517, PETRI_PLACES=194, PETRI_TRANSITIONS=201} [2024-12-02 11:03:11,738 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, -4 predicate places. [2024-12-02 11:03:11,738 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 201 transitions, 517 flow [2024-12-02 11:03:11,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:03:11,739 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:03:11,739 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:03:11,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:03:11,739 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-12-02 11:03:11,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:03:11,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1034688445, now seen corresponding path program 1 times [2024-12-02 11:03:11,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:03:11,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327981237] [2024-12-02 11:03:11,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:03:11,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:03:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:03:11,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:03:11,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:03:11,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327981237] [2024-12-02 11:03:11,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327981237] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:03:11,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:03:11,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:03:11,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179214377] [2024-12-02 11:03:11,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:03:11,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:03:11,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:03:11,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:03:11,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:03:12,046 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 230 [2024-12-02 11:03:12,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 201 transitions, 517 flow. Second operand has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:03:12,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:03:12,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 230 [2024-12-02 11:03:12,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 11:03:37,503 INFO L124 PetriNetUnfolderBase]: 157600/300013 cut-off events. [2024-12-02 11:03:37,504 INFO L125 PetriNetUnfolderBase]: For 139668/183832 co-relation queries the response was YES. [2024-12-02 11:03:38,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 557812 conditions, 300013 events. 157600/300013 cut-off events. For 139668/183832 co-relation queries the response was YES. Maximal size of possible extension queue 6614. Compared 3513912 event pairs, 137123 based on Foata normal form. 1669/267195 useless extension candidates. Maximal degree in co-relation 500806. Up to 217116 conditions per place. [2024-12-02 11:03:39,402 INFO L140 encePairwiseOnDemand]: 225/230 looper letters, 98 selfloop transitions, 4 changer transitions 0/201 dead transitions. [2024-12-02 11:03:39,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 201 transitions, 715 flow [2024-12-02 11:03:39,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:03:39,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 11:03:39,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 532 transitions. [2024-12-02 11:03:39,404 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5782608695652174 [2024-12-02 11:03:39,404 INFO L175 Difference]: Start difference. First operand has 194 places, 201 transitions, 517 flow. Second operand 4 states and 532 transitions. [2024-12-02 11:03:39,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 201 transitions, 715 flow [2024-12-02 11:03:39,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 201 transitions, 703 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 11:03:39,484 INFO L231 Difference]: Finished difference. Result has 196 places, 199 transitions, 509 flow [2024-12-02 11:03:39,485 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=509, PETRI_PLACES=196, PETRI_TRANSITIONS=199} [2024-12-02 11:03:39,486 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, -2 predicate places. [2024-12-02 11:03:39,486 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 199 transitions, 509 flow [2024-12-02 11:03:39,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:03:39,486 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:03:39,486 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:03:39,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:03:39,487 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-12-02 11:03:39,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:03:39,487 INFO L85 PathProgramCache]: Analyzing trace with hash 2010571975, now seen corresponding path program 1 times [2024-12-02 11:03:39,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:03:39,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155391180] [2024-12-02 11:03:39,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:03:39,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:03:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:03:39,518 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:03:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:03:39,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 11:03:39,558 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:03:39,559 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (103 of 104 remaining) [2024-12-02 11:03:39,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (102 of 104 remaining) [2024-12-02 11:03:39,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (101 of 104 remaining) [2024-12-02 11:03:39,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (100 of 104 remaining) [2024-12-02 11:03:39,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (99 of 104 remaining) [2024-12-02 11:03:39,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (98 of 104 remaining) [2024-12-02 11:03:39,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (97 of 104 remaining) [2024-12-02 11:03:39,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (96 of 104 remaining) [2024-12-02 11:03:39,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (95 of 104 remaining) [2024-12-02 11:03:39,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (94 of 104 remaining) [2024-12-02 11:03:39,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (93 of 104 remaining) [2024-12-02 11:03:39,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (92 of 104 remaining) [2024-12-02 11:03:39,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (91 of 104 remaining) [2024-12-02 11:03:39,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (90 of 104 remaining) [2024-12-02 11:03:39,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (89 of 104 remaining) [2024-12-02 11:03:39,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr14ASSERT_VIOLATIONMEMORY_LEAK (88 of 104 remaining) [2024-12-02 11:03:39,562 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (87 of 104 remaining) [2024-12-02 11:03:39,563 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (86 of 104 remaining) [2024-12-02 11:03:39,563 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 104 remaining) [2024-12-02 11:03:39,563 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (84 of 104 remaining) [2024-12-02 11:03:39,563 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (83 of 104 remaining) [2024-12-02 11:03:39,563 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (82 of 104 remaining) [2024-12-02 11:03:39,563 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (81 of 104 remaining) [2024-12-02 11:03:39,563 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 104 remaining) [2024-12-02 11:03:39,563 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 104 remaining) [2024-12-02 11:03:39,563 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 104 remaining) [2024-12-02 11:03:39,563 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 104 remaining) [2024-12-02 11:03:39,564 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 104 remaining) [2024-12-02 11:03:39,564 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 104 remaining) [2024-12-02 11:03:39,564 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 104 remaining) [2024-12-02 11:03:39,564 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr14ASSERT_VIOLATIONMEMORY_LEAK (73 of 104 remaining) [2024-12-02 11:03:39,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 104 remaining) [2024-12-02 11:03:39,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 104 remaining) [2024-12-02 11:03:39,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 104 remaining) [2024-12-02 11:03:39,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 104 remaining) [2024-12-02 11:03:39,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 104 remaining) [2024-12-02 11:03:39,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 104 remaining) [2024-12-02 11:03:39,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 104 remaining) [2024-12-02 11:03:39,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 104 remaining) [2024-12-02 11:03:39,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 104 remaining) [2024-12-02 11:03:39,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 104 remaining) [2024-12-02 11:03:39,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 104 remaining) [2024-12-02 11:03:39,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 104 remaining) [2024-12-02 11:03:39,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 104 remaining) [2024-12-02 11:03:39,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 104 remaining) [2024-12-02 11:03:39,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 104 remaining) [2024-12-02 11:03:39,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 104 remaining) [2024-12-02 11:03:39,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 104 remaining) [2024-12-02 11:03:39,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 104 remaining) [2024-12-02 11:03:39,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 104 remaining) [2024-12-02 11:03:39,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 104 remaining) [2024-12-02 11:03:39,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK (52 of 104 remaining) [2024-12-02 11:03:39,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 104 remaining) [2024-12-02 11:03:39,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 104 remaining) [2024-12-02 11:03:39,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 104 remaining) [2024-12-02 11:03:39,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 104 remaining) [2024-12-02 11:03:39,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 104 remaining) [2024-12-02 11:03:39,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 104 remaining) [2024-12-02 11:03:39,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 104 remaining) [2024-12-02 11:03:39,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 104 remaining) [2024-12-02 11:03:39,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 104 remaining) [2024-12-02 11:03:39,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 104 remaining) [2024-12-02 11:03:39,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 104 remaining) [2024-12-02 11:03:39,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 104 remaining) [2024-12-02 11:03:39,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 104 remaining) [2024-12-02 11:03:39,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 104 remaining) [2024-12-02 11:03:39,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 104 remaining) [2024-12-02 11:03:39,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 104 remaining) [2024-12-02 11:03:39,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 104 remaining) [2024-12-02 11:03:39,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 104 remaining) [2024-12-02 11:03:39,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 104 remaining) [2024-12-02 11:03:39,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 104 remaining) [2024-12-02 11:03:39,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 104 remaining) [2024-12-02 11:03:39,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 104 remaining) [2024-12-02 11:03:39,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 104 remaining) [2024-12-02 11:03:39,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 104 remaining) [2024-12-02 11:03:39,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 104 remaining) [2024-12-02 11:03:39,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 104 remaining) [2024-12-02 11:03:39,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr14ASSERT_VIOLATIONMEMORY_LEAK (25 of 104 remaining) [2024-12-02 11:03:39,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 104 remaining) [2024-12-02 11:03:39,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 104 remaining) [2024-12-02 11:03:39,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 104 remaining) [2024-12-02 11:03:39,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 104 remaining) [2024-12-02 11:03:39,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 104 remaining) [2024-12-02 11:03:39,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 104 remaining) [2024-12-02 11:03:39,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 104 remaining) [2024-12-02 11:03:39,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 104 remaining) [2024-12-02 11:03:39,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 104 remaining) [2024-12-02 11:03:39,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 104 remaining) [2024-12-02 11:03:39,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 104 remaining) [2024-12-02 11:03:39,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 104 remaining) [2024-12-02 11:03:39,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 104 remaining) [2024-12-02 11:03:39,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 104 remaining) [2024-12-02 11:03:39,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr14ASSERT_VIOLATIONMEMORY_LEAK (10 of 104 remaining) [2024-12-02 11:03:39,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 104 remaining) [2024-12-02 11:03:39,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 104 remaining) [2024-12-02 11:03:39,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 104 remaining) [2024-12-02 11:03:39,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 104 remaining) [2024-12-02 11:03:39,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 104 remaining) [2024-12-02 11:03:39,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 104 remaining) [2024-12-02 11:03:39,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 104 remaining) [2024-12-02 11:03:39,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 104 remaining) [2024-12-02 11:03:39,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 104 remaining) [2024-12-02 11:03:39,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 104 remaining) [2024-12-02 11:03:39,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:03:39,571 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:03:39,574 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 11:03:39,575 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-02 11:03:39,683 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-12-02 11:03:39,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 341 places, 406 transitions, 896 flow [2024-12-02 11:03:40,444 INFO L124 PetriNetUnfolderBase]: 899/3894 cut-off events. [2024-12-02 11:03:40,444 INFO L125 PetriNetUnfolderBase]: For 602/689 co-relation queries the response was YES. [2024-12-02 11:03:40,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4542 conditions, 3894 events. 899/3894 cut-off events. For 602/689 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 37974 event pairs, 22 based on Foata normal form. 0/2333 useless extension candidates. Maximal degree in co-relation 2506. Up to 192 conditions per place. [2024-12-02 11:03:40,524 INFO L82 GeneralOperation]: Start removeDead. Operand has 341 places, 406 transitions, 896 flow [2024-12-02 11:03:40,600 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 341 places, 406 transitions, 896 flow [2024-12-02 11:03:40,601 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:03:40,602 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=None, 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;@47bac0e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:03:40,602 INFO L334 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2024-12-02 11:03:40,603 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 11:03:40,604 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2024-12-02 11:03:40,604 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 11:03:40,604 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 11:03:40,604 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-12-02 11:03:40,604 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 141 more)] === [2024-12-02 11:03:40,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:03:40,604 INFO L85 PathProgramCache]: Analyzing trace with hash 45162, now seen corresponding path program 1 times [2024-12-02 11:03:40,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:03:40,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991011177] [2024-12-02 11:03:40,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:03:40,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:03:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:03:40,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:03:40,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:03:40,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991011177] [2024-12-02 11:03:40,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991011177] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:03:40,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:03:40,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 11:03:40,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936169944] [2024-12-02 11:03:40,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:03:40,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:03:40,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:03:40,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:03:40,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:03:40,772 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 406 [2024-12-02 11:03:40,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 406 transitions, 896 flow. Second operand has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:03:40,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 11:03:40,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 406 [2024-12-02 11:03:40,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand