./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-ext/04_incdec_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-ext/04_incdec_cas.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 a9295efc0d8bacfc5fb202511f0d3721ae5554ffb4def47cf5dbf45088356869 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:35:49,347 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:35:49,401 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:35:49,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:35:49,411 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:35:49,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:35:49,432 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:35:49,432 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:35:49,433 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:35:49,433 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:35:49,434 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:35:49,434 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:35:49,434 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:35:49,434 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:35:49,434 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:35:49,434 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:35:49,435 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:35:49,435 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:35:49,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:35:49,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:35:49,435 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:35:49,435 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:35:49,435 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:35:49,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:35:49,435 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:35:49,435 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:35:49,435 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:35:49,436 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:35:49,436 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:35:49,436 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:35:49,436 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:35:49,436 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:35:49,436 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:35:49,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:35:49,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:35:49,437 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:35:49,437 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:35:49,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:35:49,437 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:35:49,437 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:35:49,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:35:49,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:35:49,437 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> a9295efc0d8bacfc5fb202511f0d3721ae5554ffb4def47cf5dbf45088356869 [2025-02-06 12:35:49,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:35:49,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:35:49,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:35:49,674 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:35:49,675 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:35:49,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2025-02-06 12:35:50,837 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/231cad256/3bf7d98a26f04a4d93bc115155272610/FLAG6825e24ba [2025-02-06 12:35:51,224 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:35:51,225 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2025-02-06 12:35:51,237 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/231cad256/3bf7d98a26f04a4d93bc115155272610/FLAG6825e24ba [2025-02-06 12:35:51,425 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/231cad256/3bf7d98a26f04a4d93bc115155272610 [2025-02-06 12:35:51,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:35:51,428 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:35:51,429 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:35:51,429 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:35:51,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:35:51,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:35:51" (1/1) ... [2025-02-06 12:35:51,433 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17eed056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:51, skipping insertion in model container [2025-02-06 12:35:51,435 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:35:51" (1/1) ... [2025-02-06 12:35:51,461 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:35:51,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:35:51,709 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:35:51,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:35:51,781 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:35:51,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:51 WrapperNode [2025-02-06 12:35:51,782 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:35:51,783 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:35:51,783 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:35:51,783 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:35:51,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:51" (1/1) ... [2025-02-06 12:35:51,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:51" (1/1) ... [2025-02-06 12:35:51,810 INFO L138 Inliner]: procedures = 174, calls = 46, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 159 [2025-02-06 12:35:51,811 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:35:51,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:35:51,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:35:51,811 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:35:51,816 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:51" (1/1) ... [2025-02-06 12:35:51,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:51" (1/1) ... [2025-02-06 12:35:51,820 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:51" (1/1) ... [2025-02-06 12:35:51,829 INFO L175 MemorySlicer]: Split 23 memory accesses to 4 slices as follows [2, 6, 9, 6]. 39 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [2, 0, 1, 2]. The 8 writes are split as follows [0, 4, 2, 2]. [2025-02-06 12:35:51,832 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:51" (1/1) ... [2025-02-06 12:35:51,833 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:51" (1/1) ... [2025-02-06 12:35:51,839 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:51" (1/1) ... [2025-02-06 12:35:51,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:51" (1/1) ... [2025-02-06 12:35:51,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:51" (1/1) ... [2025-02-06 12:35:51,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:51" (1/1) ... [2025-02-06 12:35:51,850 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:35:51,850 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:35:51,850 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:35:51,850 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:35:51,851 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:51" (1/1) ... [2025-02-06 12:35:51,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:35:51,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:35:51,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:35:51,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:35:51,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 12:35:51,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 12:35:51,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 12:35:51,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 12:35:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-06 12:35:51,894 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-06 12:35:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 12:35:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 12:35:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 12:35:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 12:35:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:35:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:35:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 12:35:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 12:35:51,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:35:51,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 12:35:51,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 12:35:51,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 12:35:51,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:35:51,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:35:51,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:35:51,896 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:35:51,981 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:35:51,982 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:35:52,226 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L731: havoc dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset; [2025-02-06 12:35:52,226 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L731-1: SUMMARY for call ULTIMATE.dealloc(dec_~#dec__casret~0#1.base, dec_~#dec__casret~0#1.offset); srcloc: null [2025-02-06 12:35:52,226 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L711: havoc inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset; [2025-02-06 12:35:52,226 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L711-1: SUMMARY for call ULTIMATE.dealloc(inc_~#inc__casret~0#1.base, inc_~#inc__casret~0#1.offset); srcloc: null [2025-02-06 12:35:52,259 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:35:52,259 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:35:52,556 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:35:52,557 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:35:52,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:35:52 BoogieIcfgContainer [2025-02-06 12:35:52,557 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:35:52,563 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:35:52,563 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:35:52,570 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:35:52,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:35:51" (1/3) ... [2025-02-06 12:35:52,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374c32de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:35:52, skipping insertion in model container [2025-02-06 12:35:52,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:51" (2/3) ... [2025-02-06 12:35:52,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374c32de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:35:52, skipping insertion in model container [2025-02-06 12:35:52,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:35:52" (3/3) ... [2025-02-06 12:35:52,571 INFO L128 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas.i [2025-02-06 12:35:52,592 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:35:52,593 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04_incdec_cas.i that has 2 procedures, 67 locations, 1 initial locations, 3 loop locations, and 39 error locations. [2025-02-06 12:35:52,593 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:35:52,695 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:35:52,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 76 transitions, 156 flow [2025-02-06 12:35:52,784 INFO L124 PetriNetUnfolderBase]: 9/80 cut-off events. [2025-02-06 12:35:52,787 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:35:52,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 9/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 365 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2025-02-06 12:35:52,790 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 76 transitions, 156 flow [2025-02-06 12:35:52,793 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 76 transitions, 156 flow [2025-02-06 12:35:52,801 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:35:52,810 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;@26b78c6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:35:52,811 INFO L334 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2025-02-06 12:35:52,813 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:35:52,814 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2025-02-06 12:35:52,814 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:35:52,815 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:52,815 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 12:35:52,815 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 75 more)] === [2025-02-06 12:35:52,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:52,819 INFO L85 PathProgramCache]: Analyzing trace with hash 526358, now seen corresponding path program 1 times [2025-02-06 12:35:52,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:52,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032998049] [2025-02-06 12:35:52,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:52,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:52,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 12:35:52,881 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 12:35:52,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:52,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:52,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:52,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:52,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032998049] [2025-02-06 12:35:52,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032998049] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:52,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:52,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:35:52,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476073164] [2025-02-06 12:35:52,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:52,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 12:35:52,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:52,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 12:35:52,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 12:35:52,946 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 76 [2025-02-06 12:35:52,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 76 transitions, 156 flow. Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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) [2025-02-06 12:35:52,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:52,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 76 [2025-02-06 12:35:52,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:53,095 INFO L124 PetriNetUnfolderBase]: 115/286 cut-off events. [2025-02-06 12:35:53,095 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:35:53,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 286 events. 115/286 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1372 event pairs, 94 based on Foata normal form. 6/169 useless extension candidates. Maximal degree in co-relation 540. Up to 262 conditions per place. [2025-02-06 12:35:53,098 INFO L140 encePairwiseOnDemand]: 69/76 looper letters, 58 selfloop transitions, 0 changer transitions 0/67 dead transitions. [2025-02-06 12:35:53,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 67 transitions, 254 flow [2025-02-06 12:35:53,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 12:35:53,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 12:35:53,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 85 transitions. [2025-02-06 12:35:53,108 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5592105263157895 [2025-02-06 12:35:53,109 INFO L175 Difference]: Start difference. First operand has 70 places, 76 transitions, 156 flow. Second operand 2 states and 85 transitions. [2025-02-06 12:35:53,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 67 transitions, 254 flow [2025-02-06 12:35:53,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 67 transitions, 254 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 12:35:53,113 INFO L231 Difference]: Finished difference. Result has 64 places, 67 transitions, 138 flow [2025-02-06 12:35:53,114 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=138, PETRI_PLACES=64, PETRI_TRANSITIONS=67} [2025-02-06 12:35:53,116 INFO L279 CegarLoopForPetriNet]: 70 programPoint places, -6 predicate places. [2025-02-06 12:35:53,116 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 67 transitions, 138 flow [2025-02-06 12:35:53,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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) [2025-02-06 12:35:53,116 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:53,116 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-06 12:35:53,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:35:53,117 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 75 more)] === [2025-02-06 12:35:53,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:53,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1495445047, now seen corresponding path program 1 times [2025-02-06 12:35:53,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:53,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713535172] [2025-02-06 12:35:53,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:53,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:53,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 12:35:53,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 12:35:53,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:53,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 12:35:53,130 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 12:35:53,132 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 12:35:53,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 12:35:53,141 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:53,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 12:35:53,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 12:35:53,158 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 12:35:53,159 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (77 of 78 remaining) [2025-02-06 12:35:53,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 78 remaining) [2025-02-06 12:35:53,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 78 remaining) [2025-02-06 12:35:53,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 78 remaining) [2025-02-06 12:35:53,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 78 remaining) [2025-02-06 12:35:53,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 78 remaining) [2025-02-06 12:35:53,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 78 remaining) [2025-02-06 12:35:53,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONMEMORY_LEAK (70 of 78 remaining) [2025-02-06 12:35:53,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (63 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 78 remaining) [2025-02-06 12:35:53,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (38 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONMEMORY_LEAK (31 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 78 remaining) [2025-02-06 12:35:53,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 78 remaining) [2025-02-06 12:35:53,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 78 remaining) [2025-02-06 12:35:53,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 78 remaining) [2025-02-06 12:35:53,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (24 of 78 remaining) [2025-02-06 12:35:53,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 78 remaining) [2025-02-06 12:35:53,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 78 remaining) [2025-02-06 12:35:53,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 78 remaining) [2025-02-06 12:35:53,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 78 remaining) [2025-02-06 12:35:53,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 78 remaining) [2025-02-06 12:35:53,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 78 remaining) [2025-02-06 12:35:53,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 78 remaining) [2025-02-06 12:35:53,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 78 remaining) [2025-02-06 12:35:53,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 78 remaining) [2025-02-06 12:35:53,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 78 remaining) [2025-02-06 12:35:53,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 78 remaining) [2025-02-06 12:35:53,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 78 remaining) [2025-02-06 12:35:53,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 78 remaining) [2025-02-06 12:35:53,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 78 remaining) [2025-02-06 12:35:53,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 78 remaining) [2025-02-06 12:35:53,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 78 remaining) [2025-02-06 12:35:53,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 78 remaining) [2025-02-06 12:35:53,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 78 remaining) [2025-02-06 12:35:53,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 78 remaining) [2025-02-06 12:35:53,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 78 remaining) [2025-02-06 12:35:53,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 78 remaining) [2025-02-06 12:35:53,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 78 remaining) [2025-02-06 12:35:53,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 78 remaining) [2025-02-06 12:35:53,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 78 remaining) [2025-02-06 12:35:53,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:35:53,167 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 12:35:53,168 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 12:35:53,170 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 12:35:53,298 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:35:53,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 145 transitions, 300 flow [2025-02-06 12:35:53,337 INFO L124 PetriNetUnfolderBase]: 18/154 cut-off events. [2025-02-06 12:35:53,341 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 12:35:53,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 154 events. 18/154 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 915 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 141. Up to 3 conditions per place. [2025-02-06 12:35:53,343 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 145 transitions, 300 flow [2025-02-06 12:35:53,345 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 145 transitions, 300 flow [2025-02-06 12:35:53,346 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:35:53,346 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;@26b78c6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:35:53,346 INFO L334 AbstractCegarLoop]: Starting to check reachability of 116 error locations. [2025-02-06 12:35:53,351 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:35:53,351 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2025-02-06 12:35:53,351 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:35:53,351 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:53,352 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 12:35:53,352 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 113 more)] === [2025-02-06 12:35:53,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:53,352 INFO L85 PathProgramCache]: Analyzing trace with hash 670343, now seen corresponding path program 1 times [2025-02-06 12:35:53,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:53,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316169168] [2025-02-06 12:35:53,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:53,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:53,358 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 12:35:53,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 12:35:53,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:53,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:53,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:53,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:53,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316169168] [2025-02-06 12:35:53,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316169168] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:53,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:53,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:35:53,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339710838] [2025-02-06 12:35:53,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:53,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 12:35:53,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:53,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 12:35:53,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 12:35:53,370 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 145 [2025-02-06 12:35:53,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 145 transitions, 300 flow. Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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) [2025-02-06 12:35:53,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:53,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 145 [2025-02-06 12:35:53,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:55,177 INFO L124 PetriNetUnfolderBase]: 13411/21391 cut-off events. [2025-02-06 12:35:55,177 INFO L125 PetriNetUnfolderBase]: For 152/152 co-relation queries the response was YES. [2025-02-06 12:35:55,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42010 conditions, 21391 events. 13411/21391 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 1488. Compared 161189 event pairs, 11374 based on Foata normal form. 582/10544 useless extension candidates. Maximal degree in co-relation 17826. Up to 20470 conditions per place. [2025-02-06 12:35:55,267 INFO L140 encePairwiseOnDemand]: 132/145 looper letters, 113 selfloop transitions, 0 changer transitions 0/130 dead transitions. [2025-02-06 12:35:55,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 130 transitions, 496 flow [2025-02-06 12:35:55,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 12:35:55,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 12:35:55,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 162 transitions. [2025-02-06 12:35:55,269 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5586206896551724 [2025-02-06 12:35:55,269 INFO L175 Difference]: Start difference. First operand has 132 places, 145 transitions, 300 flow. Second operand 2 states and 162 transitions. [2025-02-06 12:35:55,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 130 transitions, 496 flow [2025-02-06 12:35:55,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 130 transitions, 496 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 12:35:55,271 INFO L231 Difference]: Finished difference. Result has 122 places, 130 transitions, 270 flow [2025-02-06 12:35:55,271 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=270, PETRI_PLACES=122, PETRI_TRANSITIONS=130} [2025-02-06 12:35:55,272 INFO L279 CegarLoopForPetriNet]: 132 programPoint places, -10 predicate places. [2025-02-06 12:35:55,272 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 130 transitions, 270 flow [2025-02-06 12:35:55,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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) [2025-02-06 12:35:55,272 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:55,272 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:55,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:35:55,273 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 113 more)] === [2025-02-06 12:35:55,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:55,273 INFO L85 PathProgramCache]: Analyzing trace with hash 784482715, now seen corresponding path program 1 times [2025-02-06 12:35:55,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:55,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912408514] [2025-02-06 12:35:55,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:55,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:55,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 12:35:55,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 12:35:55,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:55,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:55,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:55,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:55,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912408514] [2025-02-06 12:35:55,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912408514] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:55,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:55,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:35:55,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476755653] [2025-02-06 12:35:55,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:55,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:35:55,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:55,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:35:55,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:35:55,394 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 145 [2025-02-06 12:35:55,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 130 transitions, 270 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2025-02-06 12:35:55,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:55,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 145 [2025-02-06 12:35:55,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:57,265 INFO L124 PetriNetUnfolderBase]: 12049/19397 cut-off events. [2025-02-06 12:35:57,265 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2025-02-06 12:35:57,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38007 conditions, 19397 events. 12049/19397 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 1315. Compared 145431 event pairs, 7200 based on Foata normal form. 0/10014 useless extension candidates. Maximal degree in co-relation 38002. Up to 12476 conditions per place. [2025-02-06 12:35:57,317 INFO L140 encePairwiseOnDemand]: 84/145 looper letters, 241 selfloop transitions, 57 changer transitions 0/315 dead transitions. [2025-02-06 12:35:57,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 315 transitions, 1241 flow [2025-02-06 12:35:57,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:35:57,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:35:57,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 394 transitions. [2025-02-06 12:35:57,320 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6793103448275862 [2025-02-06 12:35:57,320 INFO L175 Difference]: Start difference. First operand has 122 places, 130 transitions, 270 flow. Second operand 4 states and 394 transitions. [2025-02-06 12:35:57,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 315 transitions, 1241 flow [2025-02-06 12:35:57,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 315 transitions, 1241 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 12:35:57,326 INFO L231 Difference]: Finished difference. Result has 128 places, 186 transitions, 754 flow [2025-02-06 12:35:57,327 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=754, PETRI_PLACES=128, PETRI_TRANSITIONS=186} [2025-02-06 12:35:57,327 INFO L279 CegarLoopForPetriNet]: 132 programPoint places, -4 predicate places. [2025-02-06 12:35:57,327 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 186 transitions, 754 flow [2025-02-06 12:35:57,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2025-02-06 12:35:57,327 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:57,327 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:57,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:35:57,327 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 113 more)] === [2025-02-06 12:35:57,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:57,328 INFO L85 PathProgramCache]: Analyzing trace with hash 784482716, now seen corresponding path program 1 times [2025-02-06 12:35:57,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:57,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102467751] [2025-02-06 12:35:57,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:57,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:57,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 12:35:57,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 12:35:57,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:57,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:57,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:57,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:57,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102467751] [2025-02-06 12:35:57,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102467751] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:57,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:57,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:35:57,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348061145] [2025-02-06 12:35:57,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:57,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:35:57,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:57,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:35:57,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:35:57,449 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 145 [2025-02-06 12:35:57,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 186 transitions, 754 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2025-02-06 12:35:57,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:57,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 145 [2025-02-06 12:35:57,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:58,495 INFO L124 PetriNetUnfolderBase]: 9271/14931 cut-off events. [2025-02-06 12:35:58,496 INFO L125 PetriNetUnfolderBase]: For 2404/2464 co-relation queries the response was YES. [2025-02-06 12:35:58,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36660 conditions, 14931 events. 9271/14931 cut-off events. For 2404/2464 co-relation queries the response was YES. Maximal size of possible extension queue 1003. Compared 106764 event pairs, 5478 based on Foata normal form. 994/10316 useless extension candidates. Maximal degree in co-relation 36652. Up to 8972 conditions per place. [2025-02-06 12:35:58,555 INFO L140 encePairwiseOnDemand]: 124/145 looper letters, 221 selfloop transitions, 9 changer transitions 0/247 dead transitions. [2025-02-06 12:35:58,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 247 transitions, 1421 flow [2025-02-06 12:35:58,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:35:58,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:35:58,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 278 transitions. [2025-02-06 12:35:58,557 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4793103448275862 [2025-02-06 12:35:58,557 INFO L175 Difference]: Start difference. First operand has 128 places, 186 transitions, 754 flow. Second operand 4 states and 278 transitions. [2025-02-06 12:35:58,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 247 transitions, 1421 flow [2025-02-06 12:35:58,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 247 transitions, 1421 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 12:35:58,571 INFO L231 Difference]: Finished difference. Result has 119 places, 174 transitions, 748 flow [2025-02-06 12:35:58,571 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=748, PETRI_PLACES=119, PETRI_TRANSITIONS=174} [2025-02-06 12:35:58,571 INFO L279 CegarLoopForPetriNet]: 132 programPoint places, -13 predicate places. [2025-02-06 12:35:58,571 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 174 transitions, 748 flow [2025-02-06 12:35:58,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2025-02-06 12:35:58,572 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:58,572 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2025-02-06 12:35:58,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 12:35:58,572 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 113 more)] === [2025-02-06 12:35:58,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:58,572 INFO L85 PathProgramCache]: Analyzing trace with hash 165849876, now seen corresponding path program 1 times [2025-02-06 12:35:58,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:58,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183720917] [2025-02-06 12:35:58,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:58,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:58,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 12:35:58,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 12:35:58,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:58,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 12:35:58,585 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 12:35:58,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 12:35:58,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 12:35:58,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:58,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 12:35:58,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 12:35:58,598 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 12:35:58,598 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (115 of 116 remaining) [2025-02-06 12:35:58,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (114 of 116 remaining) [2025-02-06 12:35:58,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (113 of 116 remaining) [2025-02-06 12:35:58,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (112 of 116 remaining) [2025-02-06 12:35:58,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (111 of 116 remaining) [2025-02-06 12:35:58,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (110 of 116 remaining) [2025-02-06 12:35:58,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (109 of 116 remaining) [2025-02-06 12:35:58,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONMEMORY_LEAK (108 of 116 remaining) [2025-02-06 12:35:58,598 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (107 of 116 remaining) [2025-02-06 12:35:58,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (106 of 116 remaining) [2025-02-06 12:35:58,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (105 of 116 remaining) [2025-02-06 12:35:58,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (104 of 116 remaining) [2025-02-06 12:35:58,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (103 of 116 remaining) [2025-02-06 12:35:58,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (102 of 116 remaining) [2025-02-06 12:35:58,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (101 of 116 remaining) [2025-02-06 12:35:58,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (100 of 116 remaining) [2025-02-06 12:35:58,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (99 of 116 remaining) [2025-02-06 12:35:58,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (98 of 116 remaining) [2025-02-06 12:35:58,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (97 of 116 remaining) [2025-02-06 12:35:58,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (96 of 116 remaining) [2025-02-06 12:35:58,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (95 of 116 remaining) [2025-02-06 12:35:58,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (94 of 116 remaining) [2025-02-06 12:35:58,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (93 of 116 remaining) [2025-02-06 12:35:58,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (92 of 116 remaining) [2025-02-06 12:35:58,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (91 of 116 remaining) [2025-02-06 12:35:58,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (90 of 116 remaining) [2025-02-06 12:35:58,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (89 of 116 remaining) [2025-02-06 12:35:58,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (88 of 116 remaining) [2025-02-06 12:35:58,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (87 of 116 remaining) [2025-02-06 12:35:58,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (86 of 116 remaining) [2025-02-06 12:35:58,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 116 remaining) [2025-02-06 12:35:58,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (84 of 116 remaining) [2025-02-06 12:35:58,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (83 of 116 remaining) [2025-02-06 12:35:58,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (82 of 116 remaining) [2025-02-06 12:35:58,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (81 of 116 remaining) [2025-02-06 12:35:58,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (76 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONMEMORY_LEAK (69 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (62 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 116 remaining) [2025-02-06 12:35:58,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 116 remaining) [2025-02-06 12:35:58,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 116 remaining) [2025-02-06 12:35:58,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 116 remaining) [2025-02-06 12:35:58,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 116 remaining) [2025-02-06 12:35:58,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 116 remaining) [2025-02-06 12:35:58,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 116 remaining) [2025-02-06 12:35:58,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONMEMORY_LEAK (31 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (24 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 116 remaining) [2025-02-06 12:35:58,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 116 remaining) [2025-02-06 12:35:58,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 116 remaining) [2025-02-06 12:35:58,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 116 remaining) [2025-02-06 12:35:58,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 116 remaining) [2025-02-06 12:35:58,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 116 remaining) [2025-02-06 12:35:58,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 116 remaining) [2025-02-06 12:35:58,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 116 remaining) [2025-02-06 12:35:58,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 116 remaining) [2025-02-06 12:35:58,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 116 remaining) [2025-02-06 12:35:58,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 116 remaining) [2025-02-06 12:35:58,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 116 remaining) [2025-02-06 12:35:58,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 116 remaining) [2025-02-06 12:35:58,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 116 remaining) [2025-02-06 12:35:58,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 116 remaining) [2025-02-06 12:35:58,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 12:35:58,607 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-06 12:35:58,607 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 12:35:58,607 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-06 12:35:58,726 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:35:58,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 194 places, 214 transitions, 446 flow [2025-02-06 12:35:58,749 INFO L124 PetriNetUnfolderBase]: 27/228 cut-off events. [2025-02-06 12:35:58,749 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-06 12:35:58,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 228 events. 27/228 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1447 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 209. Up to 4 conditions per place. [2025-02-06 12:35:58,750 INFO L82 GeneralOperation]: Start removeDead. Operand has 194 places, 214 transitions, 446 flow [2025-02-06 12:35:58,753 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 194 places, 214 transitions, 446 flow [2025-02-06 12:35:58,754 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:35:58,755 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;@26b78c6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:35:58,755 INFO L334 AbstractCegarLoop]: Starting to check reachability of 154 error locations. [2025-02-06 12:35:58,755 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:35:58,755 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2025-02-06 12:35:58,755 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:35:58,755 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:58,755 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 12:35:58,755 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err36REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err37REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2025-02-06 12:35:58,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:58,756 INFO L85 PathProgramCache]: Analyzing trace with hash 882845, now seen corresponding path program 1 times [2025-02-06 12:35:58,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:58,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870867067] [2025-02-06 12:35:58,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:58,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:58,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 12:35:58,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 12:35:58,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:58,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:58,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:58,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:58,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870867067] [2025-02-06 12:35:58,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870867067] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:58,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:58,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:35:58,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681199926] [2025-02-06 12:35:58,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:58,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 12:35:58,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:58,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 12:35:58,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 12:35:58,775 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 214 [2025-02-06 12:35:58,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 214 transitions, 446 flow. Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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) [2025-02-06 12:35:58,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:58,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 214 [2025-02-06 12:35:58,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand