./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix042.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix042.oepc.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 65b1f643bcee3322b8ab5a998e6338f6065aa9114a28902f0ff5431bd8cb45ea --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:34:33,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:34:33,901 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:34:33,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:34:33,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:34:33,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:34:33,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:34:33,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:34:33,935 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:34:33,936 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:34:33,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:34:33,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:34:33,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:34:33,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:34:33,937 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:34:33,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:34:33,939 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:34:33,941 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:34:33,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:34:33,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:34:33,941 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:34:33,941 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:34:33,942 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:34:33,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:34:33,942 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:34:33,942 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:34:33,942 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:34:33,942 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:34:33,943 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:34:33,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:34:33,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:34:33,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:34:33,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:34:33,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:34:33,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:34:33,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:34:33,944 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:34:33,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:34:33,945 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:34:33,945 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:34:33,945 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:34:33,947 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:34:33,947 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65b1f643bcee3322b8ab5a998e6338f6065aa9114a28902f0ff5431bd8cb45ea [2024-10-11 19:34:34,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:34:34,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:34:34,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:34:34,185 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:34:34,185 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:34:34,186 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix042.oepc.i [2024-10-11 19:34:35,611 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:34:35,833 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:34:35,834 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix042.oepc.i [2024-10-11 19:34:35,851 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/774c23ce0/08d287f8f86641d58972ebcc4731de98/FLAGacdf61d43 [2024-10-11 19:34:35,867 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/774c23ce0/08d287f8f86641d58972ebcc4731de98 [2024-10-11 19:34:35,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:34:35,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:34:35,874 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:34:35,874 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:34:35,879 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:34:35,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:34:35" (1/1) ... [2024-10-11 19:34:35,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb6f075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:35, skipping insertion in model container [2024-10-11 19:34:35,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:34:35" (1/1) ... [2024-10-11 19:34:35,920 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:34:36,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:34:36,262 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:34:36,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:34:36,450 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:34:36,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:36 WrapperNode [2024-10-11 19:34:36,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:34:36,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:34:36,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:34:36,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:34:36,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:36" (1/1) ... [2024-10-11 19:34:36,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:36" (1/1) ... [2024-10-11 19:34:36,525 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 121 [2024-10-11 19:34:36,525 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:34:36,526 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:34:36,526 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:34:36,526 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:34:36,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:36" (1/1) ... [2024-10-11 19:34:36,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:36" (1/1) ... [2024-10-11 19:34:36,541 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:36" (1/1) ... [2024-10-11 19:34:36,564 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 19:34:36,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:36" (1/1) ... [2024-10-11 19:34:36,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:36" (1/1) ... [2024-10-11 19:34:36,576 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:36" (1/1) ... [2024-10-11 19:34:36,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:36" (1/1) ... [2024-10-11 19:34:36,580 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:36" (1/1) ... [2024-10-11 19:34:36,581 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:36" (1/1) ... [2024-10-11 19:34:36,583 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:34:36,584 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:34:36,584 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:34:36,584 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:34:36,585 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:36" (1/1) ... [2024-10-11 19:34:36,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:34:36,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:34:36,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:34:36,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:34:36,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:34:36,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:34:36,677 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 19:34:36,677 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 19:34:36,677 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 19:34:36,677 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 19:34:36,677 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 19:34:36,678 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 19:34:36,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:34:36,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:34:36,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:34:36,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:34:36,679 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:34:36,835 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:34:36,837 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:34:37,074 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:34:37,074 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:34:37,196 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:34:37,196 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:34:37,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:34:37 BoogieIcfgContainer [2024-10-11 19:34:37,197 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:34:37,199 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:34:37,199 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:34:37,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:34:37,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:34:35" (1/3) ... [2024-10-11 19:34:37,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383b637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:34:37, skipping insertion in model container [2024-10-11 19:34:37,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:36" (2/3) ... [2024-10-11 19:34:37,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383b637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:34:37, skipping insertion in model container [2024-10-11 19:34:37,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:34:37" (3/3) ... [2024-10-11 19:34:37,203 INFO L112 eAbstractionObserver]: Analyzing ICFG mix042.oepc.i [2024-10-11 19:34:37,216 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:34:37,216 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-11 19:34:37,216 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:34:37,279 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:34:37,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 46 transitions, 104 flow [2024-10-11 19:34:37,327 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2024-10-11 19:34:37,327 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:34:37,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 43 events. 2/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-10-11 19:34:37,332 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 46 transitions, 104 flow [2024-10-11 19:34:37,334 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 43 transitions, 95 flow [2024-10-11 19:34:37,341 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:34:37,346 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;@562b8e23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:34:37,347 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-11 19:34:37,350 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:34:37,350 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-10-11 19:34:37,350 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:34:37,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:37,351 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-11 19:34:37,351 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:37,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:37,356 INFO L85 PathProgramCache]: Analyzing trace with hash 12184796, now seen corresponding path program 1 times [2024-10-11 19:34:37,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:34:37,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742830038] [2024-10-11 19:34:37,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:37,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:34:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:34:37,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:37,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:34:37,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742830038] [2024-10-11 19:34:37,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742830038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:37,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:37,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:34:37,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855975856] [2024-10-11 19:34:37,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:37,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:34:37,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:34:37,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:34:37,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:34:37,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 46 [2024-10-11 19:34:37,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:37,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:37,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 46 [2024-10-11 19:34:37,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:38,122 INFO L124 PetriNetUnfolderBase]: 825/1459 cut-off events. [2024-10-11 19:34:38,122 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-10-11 19:34:38,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2740 conditions, 1459 events. 825/1459 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 8669 event pairs, 457 based on Foata normal form. 96/1540 useless extension candidates. Maximal degree in co-relation 2729. Up to 1009 conditions per place. [2024-10-11 19:34:38,140 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 33 selfloop transitions, 2 changer transitions 2/55 dead transitions. [2024-10-11 19:34:38,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 55 transitions, 199 flow [2024-10-11 19:34:38,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:34:38,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:34:38,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-10-11 19:34:38,152 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7608695652173914 [2024-10-11 19:34:38,154 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 95 flow. Second operand 3 states and 105 transitions. [2024-10-11 19:34:38,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 55 transitions, 199 flow [2024-10-11 19:34:38,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 55 transitions, 194 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 19:34:38,159 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 86 flow [2024-10-11 19:34:38,162 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2024-10-11 19:34:38,165 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2024-10-11 19:34:38,166 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 86 flow [2024-10-11 19:34:38,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:38,166 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:38,166 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:38,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:34:38,167 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:38,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:38,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1351127576, now seen corresponding path program 1 times [2024-10-11 19:34:38,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:34:38,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878301003] [2024-10-11 19:34:38,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:38,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:34:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:34:38,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:38,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:34:38,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878301003] [2024-10-11 19:34:38,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878301003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:38,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:38,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:34:38,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74977656] [2024-10-11 19:34:38,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:38,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:34:38,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:34:38,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:34:38,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:34:38,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 46 [2024-10-11 19:34:38,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:38,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:38,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 46 [2024-10-11 19:34:38,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:38,501 INFO L124 PetriNetUnfolderBase]: 721/1397 cut-off events. [2024-10-11 19:34:38,501 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-10-11 19:34:38,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2617 conditions, 1397 events. 721/1397 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 8966 event pairs, 721 based on Foata normal form. 48/1395 useless extension candidates. Maximal degree in co-relation 2607. Up to 1090 conditions per place. [2024-10-11 19:34:38,510 INFO L140 encePairwiseOnDemand]: 44/46 looper letters, 18 selfloop transitions, 1 changer transitions 1/37 dead transitions. [2024-10-11 19:34:38,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 37 transitions, 124 flow [2024-10-11 19:34:38,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:34:38,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:34:38,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-10-11 19:34:38,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5869565217391305 [2024-10-11 19:34:38,512 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 86 flow. Second operand 3 states and 81 transitions. [2024-10-11 19:34:38,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 37 transitions, 124 flow [2024-10-11 19:34:38,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 120 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:34:38,514 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 80 flow [2024-10-11 19:34:38,514 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-10-11 19:34:38,515 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -5 predicate places. [2024-10-11 19:34:38,515 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 80 flow [2024-10-11 19:34:38,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:38,516 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:38,516 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:38,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:34:38,516 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:38,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:38,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1351126117, now seen corresponding path program 1 times [2024-10-11 19:34:38,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:34:38,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010459595] [2024-10-11 19:34:38,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:38,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:34:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:34:38,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:38,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:34:38,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010459595] [2024-10-11 19:34:38,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010459595] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:38,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:38,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:34:38,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851584383] [2024-10-11 19:34:38,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:38,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:34:38,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:34:38,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:34:38,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:34:38,738 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-10-11 19:34:38,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:38,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:38,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-10-11 19:34:38,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:39,117 INFO L124 PetriNetUnfolderBase]: 1499/2623 cut-off events. [2024-10-11 19:34:39,118 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:34:39,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4939 conditions, 2623 events. 1499/2623 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 16718 event pairs, 188 based on Foata normal form. 100/2665 useless extension candidates. Maximal degree in co-relation 4933. Up to 1316 conditions per place. [2024-10-11 19:34:39,130 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 42 selfloop transitions, 5 changer transitions 1/61 dead transitions. [2024-10-11 19:34:39,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 61 transitions, 230 flow [2024-10-11 19:34:39,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:34:39,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:34:39,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2024-10-11 19:34:39,135 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6413043478260869 [2024-10-11 19:34:39,135 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 80 flow. Second operand 4 states and 118 transitions. [2024-10-11 19:34:39,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 61 transitions, 230 flow [2024-10-11 19:34:39,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 61 transitions, 229 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:34:39,137 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 113 flow [2024-10-11 19:34:39,137 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2024-10-11 19:34:39,139 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -2 predicate places. [2024-10-11 19:34:39,139 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 113 flow [2024-10-11 19:34:39,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:39,140 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:39,140 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:39,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:34:39,141 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:39,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:39,142 INFO L85 PathProgramCache]: Analyzing trace with hash 941821284, now seen corresponding path program 1 times [2024-10-11 19:34:39,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:34:39,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455879569] [2024-10-11 19:34:39,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:39,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:34:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:34:39,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:39,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:34:39,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455879569] [2024-10-11 19:34:39,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455879569] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:39,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:39,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:34:39,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825697468] [2024-10-11 19:34:39,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:39,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:34:39,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:34:39,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:34:39,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:34:39,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-10-11 19:34:39,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 113 flow. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:39,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:39,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-10-11 19:34:39,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:39,628 INFO L124 PetriNetUnfolderBase]: 962/1690 cut-off events. [2024-10-11 19:34:39,628 INFO L125 PetriNetUnfolderBase]: For 423/423 co-relation queries the response was YES. [2024-10-11 19:34:39,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3796 conditions, 1690 events. 962/1690 cut-off events. For 423/423 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 9440 event pairs, 100 based on Foata normal form. 82/1727 useless extension candidates. Maximal degree in co-relation 3787. Up to 581 conditions per place. [2024-10-11 19:34:39,635 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 53 selfloop transitions, 8 changer transitions 1/75 dead transitions. [2024-10-11 19:34:39,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 75 transitions, 330 flow [2024-10-11 19:34:39,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:34:39,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:34:39,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 149 transitions. [2024-10-11 19:34:39,637 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6478260869565218 [2024-10-11 19:34:39,637 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 113 flow. Second operand 5 states and 149 transitions. [2024-10-11 19:34:39,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 75 transitions, 330 flow [2024-10-11 19:34:39,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 75 transitions, 320 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-11 19:34:39,639 INFO L231 Difference]: Finished difference. Result has 53 places, 42 transitions, 153 flow [2024-10-11 19:34:39,640 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=153, PETRI_PLACES=53, PETRI_TRANSITIONS=42} [2024-10-11 19:34:39,640 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 2 predicate places. [2024-10-11 19:34:39,640 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 42 transitions, 153 flow [2024-10-11 19:34:39,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:39,641 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:39,641 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:39,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:34:39,641 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:39,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:39,642 INFO L85 PathProgramCache]: Analyzing trace with hash -392229988, now seen corresponding path program 1 times [2024-10-11 19:34:39,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:34:39,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716875286] [2024-10-11 19:34:39,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:39,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:34:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:34:39,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:39,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:34:39,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716875286] [2024-10-11 19:34:39,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716875286] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:39,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:39,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:34:39,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915635550] [2024-10-11 19:34:39,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:39,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:34:39,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:34:39,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:34:39,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:34:39,866 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-10-11 19:34:39,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 42 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:39,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:39,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-10-11 19:34:39,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:40,080 INFO L124 PetriNetUnfolderBase]: 569/967 cut-off events. [2024-10-11 19:34:40,081 INFO L125 PetriNetUnfolderBase]: For 806/806 co-relation queries the response was YES. [2024-10-11 19:34:40,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2482 conditions, 967 events. 569/967 cut-off events. For 806/806 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4378 event pairs, 83 based on Foata normal form. 40/969 useless extension candidates. Maximal degree in co-relation 2471. Up to 308 conditions per place. [2024-10-11 19:34:40,084 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 46 selfloop transitions, 11 changer transitions 1/71 dead transitions. [2024-10-11 19:34:40,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 71 transitions, 337 flow [2024-10-11 19:34:40,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:34:40,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:34:40,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 162 transitions. [2024-10-11 19:34:40,086 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5869565217391305 [2024-10-11 19:34:40,086 INFO L175 Difference]: Start difference. First operand has 53 places, 42 transitions, 153 flow. Second operand 6 states and 162 transitions. [2024-10-11 19:34:40,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 71 transitions, 337 flow [2024-10-11 19:34:40,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 71 transitions, 312 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-10-11 19:34:40,090 INFO L231 Difference]: Finished difference. Result has 56 places, 42 transitions, 167 flow [2024-10-11 19:34:40,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=167, PETRI_PLACES=56, PETRI_TRANSITIONS=42} [2024-10-11 19:34:40,091 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 5 predicate places. [2024-10-11 19:34:40,091 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 42 transitions, 167 flow [2024-10-11 19:34:40,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:40,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:40,092 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:40,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:34:40,092 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:40,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:40,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1727400357, now seen corresponding path program 1 times [2024-10-11 19:34:40,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:34:40,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637266368] [2024-10-11 19:34:40,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:40,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:34:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:34:41,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:41,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:34:41,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637266368] [2024-10-11 19:34:41,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637266368] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:41,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:41,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 19:34:41,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291223014] [2024-10-11 19:34:41,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:41,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 19:34:41,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:34:41,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 19:34:41,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 19:34:41,337 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 46 [2024-10-11 19:34:41,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 42 transitions, 167 flow. Second operand has 9 states, 9 states have (on average 21.88888888888889) internal successors, (197), 9 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:41,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:41,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 46 [2024-10-11 19:34:41,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:41,864 INFO L124 PetriNetUnfolderBase]: 648/1238 cut-off events. [2024-10-11 19:34:41,864 INFO L125 PetriNetUnfolderBase]: For 761/779 co-relation queries the response was YES. [2024-10-11 19:34:41,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2964 conditions, 1238 events. 648/1238 cut-off events. For 761/779 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6800 event pairs, 216 based on Foata normal form. 8/1190 useless extension candidates. Maximal degree in co-relation 2952. Up to 316 conditions per place. [2024-10-11 19:34:41,870 INFO L140 encePairwiseOnDemand]: 38/46 looper letters, 42 selfloop transitions, 5 changer transitions 21/90 dead transitions. [2024-10-11 19:34:41,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 90 transitions, 423 flow [2024-10-11 19:34:41,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:34:41,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:34:41,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 229 transitions. [2024-10-11 19:34:41,871 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6222826086956522 [2024-10-11 19:34:41,872 INFO L175 Difference]: Start difference. First operand has 56 places, 42 transitions, 167 flow. Second operand 8 states and 229 transitions. [2024-10-11 19:34:41,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 90 transitions, 423 flow [2024-10-11 19:34:41,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 90 transitions, 351 flow, removed 18 selfloop flow, removed 8 redundant places. [2024-10-11 19:34:41,877 INFO L231 Difference]: Finished difference. Result has 60 places, 45 transitions, 146 flow [2024-10-11 19:34:41,877 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=146, PETRI_PLACES=60, PETRI_TRANSITIONS=45} [2024-10-11 19:34:41,879 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 9 predicate places. [2024-10-11 19:34:41,880 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 45 transitions, 146 flow [2024-10-11 19:34:41,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.88888888888889) internal successors, (197), 9 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:41,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:41,880 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:41,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:34:41,880 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:41,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:41,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1800108565, now seen corresponding path program 2 times [2024-10-11 19:34:41,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:34:41,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034631223] [2024-10-11 19:34:41,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:41,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:34:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:34:42,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:42,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:34:42,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034631223] [2024-10-11 19:34:42,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034631223] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:42,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:42,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:34:42,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043523947] [2024-10-11 19:34:42,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:42,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:34:42,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:34:42,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:34:42,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:34:42,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 46 [2024-10-11 19:34:42,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 45 transitions, 146 flow. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:42,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:42,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 46 [2024-10-11 19:34:42,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:42,365 INFO L124 PetriNetUnfolderBase]: 1090/2056 cut-off events. [2024-10-11 19:34:42,366 INFO L125 PetriNetUnfolderBase]: For 616/616 co-relation queries the response was YES. [2024-10-11 19:34:42,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4559 conditions, 2056 events. 1090/2056 cut-off events. For 616/616 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 12376 event pairs, 416 based on Foata normal form. 16/1983 useless extension candidates. Maximal degree in co-relation 4546. Up to 842 conditions per place. [2024-10-11 19:34:42,372 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 29 selfloop transitions, 2 changer transitions 19/70 dead transitions. [2024-10-11 19:34:42,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 70 transitions, 323 flow [2024-10-11 19:34:42,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:34:42,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:34:42,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2024-10-11 19:34:42,373 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5869565217391305 [2024-10-11 19:34:42,373 INFO L175 Difference]: Start difference. First operand has 60 places, 45 transitions, 146 flow. Second operand 5 states and 135 transitions. [2024-10-11 19:34:42,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 70 transitions, 323 flow [2024-10-11 19:34:42,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 70 transitions, 305 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-11 19:34:42,375 INFO L231 Difference]: Finished difference. Result has 59 places, 45 transitions, 147 flow [2024-10-11 19:34:42,375 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=147, PETRI_PLACES=59, PETRI_TRANSITIONS=45} [2024-10-11 19:34:42,376 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 8 predicate places. [2024-10-11 19:34:42,376 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 45 transitions, 147 flow [2024-10-11 19:34:42,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:42,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:42,376 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:42,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:34:42,377 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:42,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:42,377 INFO L85 PathProgramCache]: Analyzing trace with hash -297441551, now seen corresponding path program 3 times [2024-10-11 19:34:42,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:34:42,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268790270] [2024-10-11 19:34:42,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:42,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:34:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:34:42,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:42,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:34:42,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268790270] [2024-10-11 19:34:42,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268790270] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:42,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:42,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 19:34:42,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739356388] [2024-10-11 19:34:42,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:42,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 19:34:42,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:34:42,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 19:34:42,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 19:34:42,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 46 [2024-10-11 19:34:42,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 45 transitions, 147 flow. Second operand has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:42,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:42,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 46 [2024-10-11 19:34:42,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:43,256 INFO L124 PetriNetUnfolderBase]: 1385/2509 cut-off events. [2024-10-11 19:34:43,256 INFO L125 PetriNetUnfolderBase]: For 534/534 co-relation queries the response was YES. [2024-10-11 19:34:43,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5755 conditions, 2509 events. 1385/2509 cut-off events. For 534/534 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 14501 event pairs, 386 based on Foata normal form. 16/2429 useless extension candidates. Maximal degree in co-relation 5743. Up to 1010 conditions per place. [2024-10-11 19:34:43,264 INFO L140 encePairwiseOnDemand]: 32/46 looper letters, 64 selfloop transitions, 22 changer transitions 21/124 dead transitions. [2024-10-11 19:34:43,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 124 transitions, 595 flow [2024-10-11 19:34:43,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 19:34:43,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-11 19:34:43,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 269 transitions. [2024-10-11 19:34:43,266 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5316205533596838 [2024-10-11 19:34:43,266 INFO L175 Difference]: Start difference. First operand has 59 places, 45 transitions, 147 flow. Second operand 11 states and 269 transitions. [2024-10-11 19:34:43,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 124 transitions, 595 flow [2024-10-11 19:34:43,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 124 transitions, 565 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-11 19:34:43,270 INFO L231 Difference]: Finished difference. Result has 71 places, 66 transitions, 315 flow [2024-10-11 19:34:43,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=315, PETRI_PLACES=71, PETRI_TRANSITIONS=66} [2024-10-11 19:34:43,271 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 20 predicate places. [2024-10-11 19:34:43,271 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 66 transitions, 315 flow [2024-10-11 19:34:43,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.444444444444443) internal successors, (157), 9 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:43,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:43,271 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:43,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 19:34:43,272 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:43,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:43,272 INFO L85 PathProgramCache]: Analyzing trace with hash -200036149, now seen corresponding path program 4 times [2024-10-11 19:34:43,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:34:43,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410256411] [2024-10-11 19:34:43,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:43,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:34:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:34:43,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:43,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:34:43,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410256411] [2024-10-11 19:34:43,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410256411] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:43,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:43,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 19:34:43,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154122035] [2024-10-11 19:34:43,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:43,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:34:43,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:34:43,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:34:43,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:34:43,540 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 46 [2024-10-11 19:34:43,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 66 transitions, 315 flow. Second operand has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 7 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:43,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:43,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 46 [2024-10-11 19:34:43,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:43,946 INFO L124 PetriNetUnfolderBase]: 1490/2751 cut-off events. [2024-10-11 19:34:43,946 INFO L125 PetriNetUnfolderBase]: For 2623/2623 co-relation queries the response was YES. [2024-10-11 19:34:43,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7478 conditions, 2751 events. 1490/2751 cut-off events. For 2623/2623 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 16874 event pairs, 461 based on Foata normal form. 16/2651 useless extension candidates. Maximal degree in co-relation 7460. Up to 1281 conditions per place. [2024-10-11 19:34:43,958 INFO L140 encePairwiseOnDemand]: 38/46 looper letters, 33 selfloop transitions, 5 changer transitions 60/115 dead transitions. [2024-10-11 19:34:43,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 115 transitions, 715 flow [2024-10-11 19:34:43,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:34:43,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:34:43,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 192 transitions. [2024-10-11 19:34:43,963 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5217391304347826 [2024-10-11 19:34:43,963 INFO L175 Difference]: Start difference. First operand has 71 places, 66 transitions, 315 flow. Second operand 8 states and 192 transitions. [2024-10-11 19:34:43,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 115 transitions, 715 flow [2024-10-11 19:34:43,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 115 transitions, 709 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-10-11 19:34:43,971 INFO L231 Difference]: Finished difference. Result has 77 places, 42 transitions, 173 flow [2024-10-11 19:34:43,971 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=173, PETRI_PLACES=77, PETRI_TRANSITIONS=42} [2024-10-11 19:34:43,972 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 26 predicate places. [2024-10-11 19:34:43,972 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 42 transitions, 173 flow [2024-10-11 19:34:43,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 7 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:43,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:43,972 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:43,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 19:34:43,973 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:43,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:43,973 INFO L85 PathProgramCache]: Analyzing trace with hash 586254615, now seen corresponding path program 5 times [2024-10-11 19:34:43,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:34:43,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112232893] [2024-10-11 19:34:43,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:43,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:34:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 19:34:44,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 19:34:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 19:34:44,102 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 19:34:44,102 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 19:34:44,103 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-10-11 19:34:44,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-10-11 19:34:44,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-10-11 19:34:44,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-10-11 19:34:44,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-10-11 19:34:44,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-10-11 19:34:44,105 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-10-11 19:34:44,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 19:34:44,105 INFO L407 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1] [2024-10-11 19:34:44,183 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:34:44,183 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:34:44,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:34:44 BasicIcfg [2024-10-11 19:34:44,187 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:34:44,187 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:34:44,187 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:34:44,187 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:34:44,188 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:34:37" (3/4) ... [2024-10-11 19:34:44,189 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 19:34:44,190 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:34:44,190 INFO L158 Benchmark]: Toolchain (without parser) took 8318.91ms. Allocated memory was 155.2MB in the beginning and 434.1MB in the end (delta: 278.9MB). Free memory was 84.3MB in the beginning and 244.2MB in the end (delta: -159.9MB). Peak memory consumption was 120.8MB. Max. memory is 16.1GB. [2024-10-11 19:34:44,190 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 155.2MB. Free memory is still 106.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:34:44,190 INFO L158 Benchmark]: CACSL2BoogieTranslator took 577.06ms. Allocated memory is still 155.2MB. Free memory was 84.2MB in the beginning and 116.9MB in the end (delta: -32.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 19:34:44,191 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.75ms. Allocated memory is still 155.2MB. Free memory was 116.9MB in the beginning and 114.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:34:44,191 INFO L158 Benchmark]: Boogie Preprocessor took 57.48ms. Allocated memory is still 155.2MB. Free memory was 114.7MB in the beginning and 111.1MB in the end (delta: 3.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 19:34:44,191 INFO L158 Benchmark]: RCFGBuilder took 613.33ms. Allocated memory is still 155.2MB. Free memory was 111.1MB in the beginning and 56.6MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2024-10-11 19:34:44,191 INFO L158 Benchmark]: TraceAbstraction took 6988.17ms. Allocated memory was 155.2MB in the beginning and 434.1MB in the end (delta: 278.9MB). Free memory was 55.6MB in the beginning and 244.2MB in the end (delta: -188.6MB). Peak memory consumption was 91.9MB. Max. memory is 16.1GB. [2024-10-11 19:34:44,192 INFO L158 Benchmark]: Witness Printer took 2.53ms. Allocated memory is still 434.1MB. Free memory is still 244.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:34:44,193 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 155.2MB. Free memory is still 106.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 577.06ms. Allocated memory is still 155.2MB. Free memory was 84.2MB in the beginning and 116.9MB in the end (delta: -32.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.75ms. Allocated memory is still 155.2MB. Free memory was 116.9MB in the beginning and 114.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.48ms. Allocated memory is still 155.2MB. Free memory was 114.7MB in the beginning and 111.1MB in the end (delta: 3.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 613.33ms. Allocated memory is still 155.2MB. Free memory was 111.1MB in the beginning and 56.6MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6988.17ms. Allocated memory was 155.2MB in the beginning and 434.1MB in the end (delta: 278.9MB). Free memory was 55.6MB in the beginning and 244.2MB in the end (delta: -188.6MB). Peak memory consumption was 91.9MB. Max. memory is 16.1GB. * Witness Printer took 2.53ms. Allocated memory is still 434.1MB. Free memory is still 244.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p2_EAX = 0; [L715] 0 int __unbuffered_p2_EBX = 0; [L717] 0 int a = 0; [L718] 0 _Bool a$flush_delayed; [L719] 0 int a$mem_tmp; [L720] 0 _Bool a$r_buff0_thd0; [L721] 0 _Bool a$r_buff0_thd1; [L722] 0 _Bool a$r_buff0_thd2; [L723] 0 _Bool a$r_buff0_thd3; [L724] 0 _Bool a$r_buff1_thd0; [L725] 0 _Bool a$r_buff1_thd1; [L726] 0 _Bool a$r_buff1_thd2; [L727] 0 _Bool a$r_buff1_thd3; [L728] 0 _Bool a$read_delayed; [L729] 0 int *a$read_delayed_var; [L730] 0 int a$w_buff0; [L731] 0 _Bool a$w_buff0_used; [L732] 0 int a$w_buff1; [L733] 0 _Bool a$w_buff1_used; [L734] 0 _Bool main$tmp_guard0; [L735] 0 _Bool main$tmp_guard1; [L737] 0 int x = 0; [L739] 0 int y = 0; [L741] 0 int z = 0; [L742] 0 _Bool weak$$choice0; [L743] 0 _Bool weak$$choice2; [L843] 0 pthread_t t1105; [L844] FCALL, FORK 0 pthread_create(&t1105, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t1105=-2, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L747] 1 a$w_buff1 = a$w_buff0 [L748] 1 a$w_buff0 = 1 [L749] 1 a$w_buff1_used = a$w_buff0_used [L750] 1 a$w_buff0_used = (_Bool)1 [L751] CALL 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L751] RET 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L752] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L753] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L754] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L755] 1 a$r_buff1_thd3 = a$r_buff0_thd3 [L756] 1 a$r_buff0_thd1 = (_Bool)1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L845] 0 pthread_t t1106; [L846] FCALL, FORK 0 pthread_create(&t1106, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t1105=-2, t1106=-1, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L847] 0 pthread_t t1107; [L848] FCALL, FORK 0 pthread_create(&t1107, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t1105=-2, t1106=-1, t1107=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L759] 1 __unbuffered_p0_EAX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L776] 2 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L779] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L782] 2 a = a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L783] 2 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L784] 2 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L785] 2 a$r_buff0_thd2 = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L786] 2 a$r_buff1_thd2 = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L796] 3 y = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=0] [L799] 3 z = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1] [L802] 3 __unbuffered_p2_EAX = z VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1] [L805] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L806] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L807] 3 a$flush_delayed = weak$$choice2 [L808] 3 a$mem_tmp = a [L809] 3 a = !a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : a$w_buff1) [L810] 3 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : a$w_buff0)) [L811] 3 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff1 : a$w_buff1)) [L812] 3 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used)) [L813] 3 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L814] 3 a$r_buff0_thd3 = weak$$choice2 ? a$r_buff0_thd3 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$r_buff0_thd3 : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3)) [L815] 3 a$r_buff1_thd3 = weak$$choice2 ? a$r_buff1_thd3 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$r_buff1_thd3 : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L816] 3 __unbuffered_p2_EBX = a [L817] 3 a = a$flush_delayed ? a$mem_tmp : a [L818] 3 a$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1] [L821] 3 a = a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a) [L822] 3 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used [L823] 3 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$w_buff1_used [L824] 3 a$r_buff0_thd3 = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3 [L825] 3 a$r_buff1_thd3 = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1] [L762] 1 a = a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L763] 1 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L764] 1 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L765] 1 a$r_buff0_thd1 = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L766] 1 a$r_buff1_thd1 = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1] [L769] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1] [L789] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1] [L828] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1] [L850] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1105=-2, t1106=-1, t1107=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1] [L852] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L852] RET 0 assume_abort_if_not(main$tmp_guard0) [L854] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L855] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L856] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L857] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L858] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1105=-2, t1106=-1, t1107=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1] [L861] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1105=-2, t1106=-1, t1107=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1] [L863] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1] [L17] 0 __assert_fail ("0", "mix042.oepc.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 841]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 846]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 848]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 844]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 72 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 462 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 435 mSDsluCounter, 224 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 195 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1284 IncrementalHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 29 mSDtfsCounter, 1284 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred in iteration=8, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 239 NumberOfCodeBlocks, 239 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 1217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-11 19:34:44,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix042.oepc.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 65b1f643bcee3322b8ab5a998e6338f6065aa9114a28902f0ff5431bd8cb45ea --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:34:46,628 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:34:46,696 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-11 19:34:46,702 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:34:46,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:34:46,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:34:46,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:34:46,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:34:46,732 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:34:46,733 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:34:46,733 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:34:46,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:34:46,734 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:34:46,734 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:34:46,734 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:34:46,735 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:34:46,735 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:34:46,735 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:34:46,735 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:34:46,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:34:46,736 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:34:46,737 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:34:46,737 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:34:46,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:34:46,737 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:34:46,738 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 19:34:46,738 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:34:46,738 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 19:34:46,738 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:34:46,739 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:34:46,739 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:34:46,739 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:34:46,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:34:46,740 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:34:46,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:34:46,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:34:46,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:34:46,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:34:46,758 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 19:34:46,758 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 19:34:46,759 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:34:46,762 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:34:46,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:34:46,763 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:34:46,763 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 19:34:46,763 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release 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-clean/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 -> 65b1f643bcee3322b8ab5a998e6338f6065aa9114a28902f0ff5431bd8cb45ea [2024-10-11 19:34:47,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:34:47,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:34:47,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:34:47,175 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:34:47,175 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:34:47,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix042.oepc.i [2024-10-11 19:34:48,642 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:34:48,882 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:34:48,882 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix042.oepc.i [2024-10-11 19:34:48,903 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/827851de4/42935755202d40e4b89257afb5e3fb3c/FLAG905b3566f [2024-10-11 19:34:49,217 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/827851de4/42935755202d40e4b89257afb5e3fb3c [2024-10-11 19:34:49,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:34:49,220 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:34:49,225 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:34:49,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:34:49,228 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:34:49,232 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:34:49" (1/1) ... [2024-10-11 19:34:49,233 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b2ad5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:49, skipping insertion in model container [2024-10-11 19:34:49,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:34:49" (1/1) ... [2024-10-11 19:34:49,280 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:34:49,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:34:49,644 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:34:49,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:34:49,736 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:34:49,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:49 WrapperNode [2024-10-11 19:34:49,737 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:34:49,738 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:34:49,738 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:34:49,738 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:34:49,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:49" (1/1) ... [2024-10-11 19:34:49,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:49" (1/1) ... [2024-10-11 19:34:49,778 INFO L138 Inliner]: procedures = 176, calls = 47, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 122 [2024-10-11 19:34:49,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:34:49,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:34:49,791 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:34:49,791 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:34:49,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:49" (1/1) ... [2024-10-11 19:34:49,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:49" (1/1) ... [2024-10-11 19:34:49,808 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:49" (1/1) ... [2024-10-11 19:34:49,823 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 19:34:49,823 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:49" (1/1) ... [2024-10-11 19:34:49,824 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:49" (1/1) ... [2024-10-11 19:34:49,832 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:49" (1/1) ... [2024-10-11 19:34:49,833 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:49" (1/1) ... [2024-10-11 19:34:49,835 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:49" (1/1) ... [2024-10-11 19:34:49,836 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:49" (1/1) ... [2024-10-11 19:34:49,838 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:34:49,839 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:34:49,839 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:34:49,839 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:34:49,840 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:49" (1/1) ... [2024-10-11 19:34:49,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:34:49,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:34:49,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:34:49,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:34:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:34:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:34:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 19:34:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 19:34:49,918 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 19:34:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 19:34:49,918 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 19:34:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 19:34:49,918 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 19:34:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:34:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:34:49,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:34:49,920 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:34:50,065 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:34:50,067 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:34:50,327 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:34:50,327 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:34:50,544 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:34:50,545 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:34:50,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:34:50 BoogieIcfgContainer [2024-10-11 19:34:50,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:34:50,548 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:34:50,548 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:34:50,551 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:34:50,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:34:49" (1/3) ... [2024-10-11 19:34:50,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5213bd76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:34:50, skipping insertion in model container [2024-10-11 19:34:50,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:49" (2/3) ... [2024-10-11 19:34:50,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5213bd76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:34:50, skipping insertion in model container [2024-10-11 19:34:50,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:34:50" (3/3) ... [2024-10-11 19:34:50,553 INFO L112 eAbstractionObserver]: Analyzing ICFG mix042.oepc.i [2024-10-11 19:34:50,566 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:34:50,566 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-11 19:34:50,566 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:34:50,619 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:34:50,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 46 transitions, 104 flow [2024-10-11 19:34:50,678 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2024-10-11 19:34:50,679 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:34:50,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 43 events. 2/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-10-11 19:34:50,682 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 46 transitions, 104 flow [2024-10-11 19:34:50,685 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 43 transitions, 95 flow [2024-10-11 19:34:50,696 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:34:50,703 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;@61f89115, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:34:50,704 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-11 19:34:50,707 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:34:50,707 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-10-11 19:34:50,707 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:34:50,707 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:50,708 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-11 19:34:50,708 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:50,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:50,712 INFO L85 PathProgramCache]: Analyzing trace with hash 12246364, now seen corresponding path program 1 times [2024-10-11 19:34:50,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:34:50,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413742128] [2024-10-11 19:34:50,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:50,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:50,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:34:50,725 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:34:50,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-11 19:34:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:34:50,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 19:34:50,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:34:50,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:50,864 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:34:50,864 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:34:50,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413742128] [2024-10-11 19:34:50,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413742128] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:50,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:50,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:34:50,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768503056] [2024-10-11 19:34:50,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:50,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:34:50,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:34:50,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:34:50,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:34:50,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 46 [2024-10-11 19:34:50,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:50,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:50,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 46 [2024-10-11 19:34:50,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:51,348 INFO L124 PetriNetUnfolderBase]: 825/1459 cut-off events. [2024-10-11 19:34:51,348 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-10-11 19:34:51,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2740 conditions, 1459 events. 825/1459 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 8669 event pairs, 457 based on Foata normal form. 96/1540 useless extension candidates. Maximal degree in co-relation 2729. Up to 1009 conditions per place. [2024-10-11 19:34:51,364 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 33 selfloop transitions, 2 changer transitions 2/55 dead transitions. [2024-10-11 19:34:51,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 55 transitions, 199 flow [2024-10-11 19:34:51,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:34:51,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:34:51,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-10-11 19:34:51,374 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7608695652173914 [2024-10-11 19:34:51,375 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 95 flow. Second operand 3 states and 105 transitions. [2024-10-11 19:34:51,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 55 transitions, 199 flow [2024-10-11 19:34:51,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 55 transitions, 194 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 19:34:51,381 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 86 flow [2024-10-11 19:34:51,383 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2024-10-11 19:34:51,386 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2024-10-11 19:34:51,388 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 86 flow [2024-10-11 19:34:51,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:51,388 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:51,388 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:51,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-10-11 19:34:51,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:51,590 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:51,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:51,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1957825494, now seen corresponding path program 1 times [2024-10-11 19:34:51,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:34:51,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995923041] [2024-10-11 19:34:51,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:51,592 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:51,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:34:51,595 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:34:51,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-11 19:34:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:34:51,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:34:51,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:34:51,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:51,721 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:34:51,721 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:34:51,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995923041] [2024-10-11 19:34:51,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995923041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:51,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:51,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:34:51,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785403385] [2024-10-11 19:34:51,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:51,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:34:51,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:34:51,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:34:51,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:34:51,732 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-10-11 19:34:51,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:51,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:51,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-10-11 19:34:51,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:52,106 INFO L124 PetriNetUnfolderBase]: 1680/2968 cut-off events. [2024-10-11 19:34:52,106 INFO L125 PetriNetUnfolderBase]: For 154/154 co-relation queries the response was YES. [2024-10-11 19:34:52,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5701 conditions, 2968 events. 1680/2968 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 19504 event pairs, 188 based on Foata normal form. 100/3010 useless extension candidates. Maximal degree in co-relation 5691. Up to 1579 conditions per place. [2024-10-11 19:34:52,121 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 43 selfloop transitions, 5 changer transitions 1/63 dead transitions. [2024-10-11 19:34:52,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 63 transitions, 242 flow [2024-10-11 19:34:52,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:34:52,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:34:52,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2024-10-11 19:34:52,123 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6467391304347826 [2024-10-11 19:34:52,123 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 86 flow. Second operand 4 states and 119 transitions. [2024-10-11 19:34:52,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 63 transitions, 242 flow [2024-10-11 19:34:52,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 63 transitions, 234 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:34:52,126 INFO L231 Difference]: Finished difference. Result has 50 places, 41 transitions, 116 flow [2024-10-11 19:34:52,126 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=50, PETRI_TRANSITIONS=41} [2024-10-11 19:34:52,126 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -1 predicate places. [2024-10-11 19:34:52,127 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 41 transitions, 116 flow [2024-10-11 19:34:52,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:52,127 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:52,127 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:52,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-11 19:34:52,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:52,332 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:52,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:52,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1814903345, now seen corresponding path program 1 times [2024-10-11 19:34:52,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:34:52,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919769462] [2024-10-11 19:34:52,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:52,333 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:52,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:34:52,338 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:34:52,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-11 19:34:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:34:52,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:34:52,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:34:52,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:52,502 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:34:52,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:34:52,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919769462] [2024-10-11 19:34:52,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919769462] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:52,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:52,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:34:52,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553427830] [2024-10-11 19:34:52,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:52,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:34:52,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:34:52,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:34:52,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:34:52,511 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-10-11 19:34:52,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:52,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:52,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-10-11 19:34:52,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:52,787 INFO L124 PetriNetUnfolderBase]: 1038/1846 cut-off events. [2024-10-11 19:34:52,787 INFO L125 PetriNetUnfolderBase]: For 435/435 co-relation queries the response was YES. [2024-10-11 19:34:52,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4079 conditions, 1846 events. 1038/1846 cut-off events. For 435/435 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 10522 event pairs, 100 based on Foata normal form. 82/1883 useless extension candidates. Maximal degree in co-relation 4067. Up to 697 conditions per place. [2024-10-11 19:34:52,797 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 54 selfloop transitions, 8 changer transitions 1/77 dead transitions. [2024-10-11 19:34:52,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 77 transitions, 335 flow [2024-10-11 19:34:52,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:34:52,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:34:52,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 150 transitions. [2024-10-11 19:34:52,799 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6521739130434783 [2024-10-11 19:34:52,799 INFO L175 Difference]: Start difference. First operand has 50 places, 41 transitions, 116 flow. Second operand 5 states and 150 transitions. [2024-10-11 19:34:52,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 77 transitions, 335 flow [2024-10-11 19:34:52,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 77 transitions, 325 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-11 19:34:52,802 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 156 flow [2024-10-11 19:34:52,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=156, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2024-10-11 19:34:52,803 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 3 predicate places. [2024-10-11 19:34:52,803 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 156 flow [2024-10-11 19:34:52,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:52,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:52,804 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:52,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-11 19:34:53,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:53,007 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:53,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:53,008 INFO L85 PathProgramCache]: Analyzing trace with hash -676494613, now seen corresponding path program 1 times [2024-10-11 19:34:53,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:34:53,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394353482] [2024-10-11 19:34:53,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:53,009 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:53,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:34:53,011 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:34:53,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-11 19:34:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:34:53,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 19:34:53,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:34:53,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:53,119 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:34:53,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:34:53,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394353482] [2024-10-11 19:34:53,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394353482] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:53,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:53,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:34:53,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363981985] [2024-10-11 19:34:53,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:53,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:34:53,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:34:53,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:34:53,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:34:53,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-10-11 19:34:53,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:53,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:53,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-10-11 19:34:53,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:53,497 INFO L124 PetriNetUnfolderBase]: 581/995 cut-off events. [2024-10-11 19:34:53,497 INFO L125 PetriNetUnfolderBase]: For 806/806 co-relation queries the response was YES. [2024-10-11 19:34:53,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2529 conditions, 995 events. 581/995 cut-off events. For 806/806 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4543 event pairs, 83 based on Foata normal form. 40/997 useless extension candidates. Maximal degree in co-relation 2515. Up to 308 conditions per place. [2024-10-11 19:34:53,508 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 47 selfloop transitions, 11 changer transitions 1/73 dead transitions. [2024-10-11 19:34:53,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 73 transitions, 342 flow [2024-10-11 19:34:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:34:53,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:34:53,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 163 transitions. [2024-10-11 19:34:53,513 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5905797101449275 [2024-10-11 19:34:53,513 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 156 flow. Second operand 6 states and 163 transitions. [2024-10-11 19:34:53,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 73 transitions, 342 flow [2024-10-11 19:34:53,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 73 transitions, 317 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-10-11 19:34:53,521 INFO L231 Difference]: Finished difference. Result has 57 places, 44 transitions, 170 flow [2024-10-11 19:34:53,521 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=170, PETRI_PLACES=57, PETRI_TRANSITIONS=44} [2024-10-11 19:34:53,522 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 6 predicate places. [2024-10-11 19:34:53,522 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 44 transitions, 170 flow [2024-10-11 19:34:53,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:53,522 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:53,523 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:53,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-10-11 19:34:53,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:53,724 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:53,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:53,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1849324712, now seen corresponding path program 1 times [2024-10-11 19:34:53,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:34:53,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348999710] [2024-10-11 19:34:53,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:53,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:53,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:34:53,731 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:34:53,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-11 19:34:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:34:53,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 19:34:53,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:34:53,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:53,850 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:34:53,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:34:53,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348999710] [2024-10-11 19:34:53,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348999710] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:53,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:53,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:34:53,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963362467] [2024-10-11 19:34:53,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:53,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:34:53,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:34:53,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:34:53,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:34:53,853 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 46 [2024-10-11 19:34:53,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:53,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:53,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 46 [2024-10-11 19:34:53,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:53,952 INFO L124 PetriNetUnfolderBase]: 307/648 cut-off events. [2024-10-11 19:34:53,952 INFO L125 PetriNetUnfolderBase]: For 253/263 co-relation queries the response was YES. [2024-10-11 19:34:53,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1425 conditions, 648 events. 307/648 cut-off events. For 253/263 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3202 event pairs, 288 based on Foata normal form. 8/616 useless extension candidates. Maximal degree in co-relation 1410. Up to 481 conditions per place. [2024-10-11 19:34:53,957 INFO L140 encePairwiseOnDemand]: 44/46 looper letters, 18 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2024-10-11 19:34:53,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 43 transitions, 208 flow [2024-10-11 19:34:53,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:34:53,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:34:53,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-10-11 19:34:53,958 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5869565217391305 [2024-10-11 19:34:53,959 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 170 flow. Second operand 3 states and 81 transitions. [2024-10-11 19:34:53,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 43 transitions, 208 flow [2024-10-11 19:34:53,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 43 transitions, 152 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-10-11 19:34:53,961 INFO L231 Difference]: Finished difference. Result has 50 places, 42 transitions, 112 flow [2024-10-11 19:34:53,961 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=50, PETRI_TRANSITIONS=42} [2024-10-11 19:34:53,962 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -1 predicate places. [2024-10-11 19:34:53,962 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 42 transitions, 112 flow [2024-10-11 19:34:53,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:53,968 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:53,968 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:53,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-10-11 19:34:54,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:54,169 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:54,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:54,170 INFO L85 PathProgramCache]: Analyzing trace with hash -785205977, now seen corresponding path program 1 times [2024-10-11 19:34:54,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:34:54,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637420248] [2024-10-11 19:34:54,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:34:54,171 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:54,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:34:54,174 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:34:54,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-11 19:34:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:34:54,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 19:34:54,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:34:54,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:54,548 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:34:54,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:34:54,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637420248] [2024-10-11 19:34:54,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637420248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:54,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:54,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 19:34:54,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335946766] [2024-10-11 19:34:54,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:54,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 19:34:54,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:34:54,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 19:34:54,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-11 19:34:54,559 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 46 [2024-10-11 19:34:54,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 42 transitions, 112 flow. Second operand has 9 states, 9 states have (on average 21.88888888888889) internal successors, (197), 9 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:54,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:54,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 46 [2024-10-11 19:34:54,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:54,828 INFO L124 PetriNetUnfolderBase]: 455/875 cut-off events. [2024-10-11 19:34:54,829 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:34:54,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1731 conditions, 875 events. 455/875 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4404 event pairs, 102 based on Foata normal form. 8/842 useless extension candidates. Maximal degree in co-relation 1724. Up to 236 conditions per place. [2024-10-11 19:34:54,847 INFO L140 encePairwiseOnDemand]: 38/46 looper letters, 32 selfloop transitions, 4 changer transitions 24/82 dead transitions. [2024-10-11 19:34:54,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 82 transitions, 320 flow [2024-10-11 19:34:54,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:34:54,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:34:54,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 241 transitions. [2024-10-11 19:34:54,849 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5821256038647343 [2024-10-11 19:34:54,849 INFO L175 Difference]: Start difference. First operand has 50 places, 42 transitions, 112 flow. Second operand 9 states and 241 transitions. [2024-10-11 19:34:54,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 82 transitions, 320 flow [2024-10-11 19:34:54,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 82 transitions, 319 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:34:54,850 INFO L231 Difference]: Finished difference. Result has 60 places, 42 transitions, 129 flow [2024-10-11 19:34:54,850 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=129, PETRI_PLACES=60, PETRI_TRANSITIONS=42} [2024-10-11 19:34:54,851 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 9 predicate places. [2024-10-11 19:34:54,851 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 42 transitions, 129 flow [2024-10-11 19:34:54,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.88888888888889) internal successors, (197), 9 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:54,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:54,851 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:54,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-10-11 19:34:55,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:55,055 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:55,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:55,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1133353125, now seen corresponding path program 2 times [2024-10-11 19:34:55,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:34:55,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456664136] [2024-10-11 19:34:55,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 19:34:55,057 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:55,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:34:55,059 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:34:55,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-11 19:34:55,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 19:34:55,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:34:55,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 19:34:55,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:34:55,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:55,152 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:34:55,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:34:55,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456664136] [2024-10-11 19:34:55,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456664136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:55,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:55,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:34:55,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840821144] [2024-10-11 19:34:55,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:55,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:34:55,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:34:55,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:34:55,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:34:55,157 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 46 [2024-10-11 19:34:55,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 42 transitions, 129 flow. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:55,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:55,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 46 [2024-10-11 19:34:55,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:55,344 INFO L124 PetriNetUnfolderBase]: 691/1311 cut-off events. [2024-10-11 19:34:55,344 INFO L125 PetriNetUnfolderBase]: For 342/342 co-relation queries the response was YES. [2024-10-11 19:34:55,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2846 conditions, 1311 events. 691/1311 cut-off events. For 342/342 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 7211 event pairs, 273 based on Foata normal form. 8/1273 useless extension candidates. Maximal degree in co-relation 2834. Up to 527 conditions per place. [2024-10-11 19:34:55,361 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 26 selfloop transitions, 2 changer transitions 16/64 dead transitions. [2024-10-11 19:34:55,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 64 transitions, 277 flow [2024-10-11 19:34:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:34:55,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:34:55,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2024-10-11 19:34:55,363 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5869565217391305 [2024-10-11 19:34:55,363 INFO L175 Difference]: Start difference. First operand has 60 places, 42 transitions, 129 flow. Second operand 5 states and 135 transitions. [2024-10-11 19:34:55,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 64 transitions, 277 flow [2024-10-11 19:34:55,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 64 transitions, 253 flow, removed 5 selfloop flow, removed 7 redundant places. [2024-10-11 19:34:55,368 INFO L231 Difference]: Finished difference. Result has 56 places, 42 transitions, 127 flow [2024-10-11 19:34:55,368 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=127, PETRI_PLACES=56, PETRI_TRANSITIONS=42} [2024-10-11 19:34:55,368 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 5 predicate places. [2024-10-11 19:34:55,368 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 42 transitions, 127 flow [2024-10-11 19:34:55,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:55,369 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:55,369 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:55,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-10-11 19:34:55,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:55,570 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:55,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:55,570 INFO L85 PathProgramCache]: Analyzing trace with hash -254033799, now seen corresponding path program 3 times [2024-10-11 19:34:55,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:34:55,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871665010] [2024-10-11 19:34:55,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 19:34:55,571 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:55,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:34:55,574 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:34:55,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-10-11 19:34:55,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-10-11 19:34:55,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:34:55,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:34:55,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:34:55,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:34:55,674 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:34:55,674 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:34:55,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871665010] [2024-10-11 19:34:55,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871665010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:34:55,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:34:55,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:34:55,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653883773] [2024-10-11 19:34:55,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:34:55,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:34:55,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:34:55,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:34:55,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:34:55,682 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 46 [2024-10-11 19:34:55,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 42 transitions, 127 flow. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:55,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:34:55,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 46 [2024-10-11 19:34:55,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:34:55,881 INFO L124 PetriNetUnfolderBase]: 627/1236 cut-off events. [2024-10-11 19:34:55,881 INFO L125 PetriNetUnfolderBase]: For 77/83 co-relation queries the response was YES. [2024-10-11 19:34:55,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2579 conditions, 1236 events. 627/1236 cut-off events. For 77/83 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 6509 event pairs, 218 based on Foata normal form. 8/1193 useless extension candidates. Maximal degree in co-relation 2568. Up to 530 conditions per place. [2024-10-11 19:34:55,885 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 24 selfloop transitions, 1 changer transitions 24/69 dead transitions. [2024-10-11 19:34:55,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 69 transitions, 292 flow [2024-10-11 19:34:55,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:34:55,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:34:55,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 158 transitions. [2024-10-11 19:34:55,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.572463768115942 [2024-10-11 19:34:55,886 INFO L175 Difference]: Start difference. First operand has 56 places, 42 transitions, 127 flow. Second operand 6 states and 158 transitions. [2024-10-11 19:34:55,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 69 transitions, 292 flow [2024-10-11 19:34:55,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 69 transitions, 278 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-11 19:34:55,888 INFO L231 Difference]: Finished difference. Result has 59 places, 42 transitions, 128 flow [2024-10-11 19:34:55,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=128, PETRI_PLACES=59, PETRI_TRANSITIONS=42} [2024-10-11 19:34:55,889 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 8 predicate places. [2024-10-11 19:34:55,889 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 42 transitions, 128 flow [2024-10-11 19:34:55,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:34:55,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:34:55,890 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:34:55,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-10-11 19:34:56,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:56,091 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-10-11 19:34:56,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:34:56,094 INFO L85 PathProgramCache]: Analyzing trace with hash 173806309, now seen corresponding path program 4 times [2024-10-11 19:34:56,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:34:56,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052588522] [2024-10-11 19:34:56,095 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 19:34:56,095 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:56,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:34:56,099 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:34:56,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-10-11 19:34:56,167 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 19:34:56,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2024-10-11 19:34:56,168 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 19:34:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 19:34:56,248 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-11 19:34:56,252 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 19:34:56,253 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-10-11 19:34:56,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-10-11 19:34:56,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-10-11 19:34:56,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-10-11 19:34:56,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-10-11 19:34:56,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-10-11 19:34:56,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-10-11 19:34:56,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-10-11 19:34:56,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:34:56,456 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2024-10-11 19:34:56,538 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:34:56,538 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:34:56,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:34:56 BasicIcfg [2024-10-11 19:34:56,546 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:34:56,547 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:34:56,547 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:34:56,547 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:34:56,547 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:34:50" (3/4) ... [2024-10-11 19:34:56,549 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 19:34:56,553 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:34:56,554 INFO L158 Benchmark]: Toolchain (without parser) took 7333.82ms. Allocated memory was 73.4MB in the beginning and 297.8MB in the end (delta: 224.4MB). Free memory was 42.3MB in the beginning and 197.3MB in the end (delta: -155.0MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. [2024-10-11 19:34:56,554 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory is still 25.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:34:56,554 INFO L158 Benchmark]: CACSL2BoogieTranslator took 512.40ms. Allocated memory is still 73.4MB. Free memory was 42.2MB in the beginning and 35.0MB in the end (delta: 7.2MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2024-10-11 19:34:56,554 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.52ms. Allocated memory is still 73.4MB. Free memory was 35.0MB in the beginning and 32.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:34:56,555 INFO L158 Benchmark]: Boogie Preprocessor took 58.68ms. Allocated memory is still 73.4MB. Free memory was 32.6MB in the beginning and 48.2MB in the end (delta: -15.6MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2024-10-11 19:34:56,555 INFO L158 Benchmark]: RCFGBuilder took 707.11ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 47.8MB in the beginning and 48.1MB in the end (delta: -297.5kB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2024-10-11 19:34:56,555 INFO L158 Benchmark]: TraceAbstraction took 5997.78ms. Allocated memory was 96.5MB in the beginning and 297.8MB in the end (delta: 201.3MB). Free memory was 47.5MB in the beginning and 197.3MB in the end (delta: -149.8MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. [2024-10-11 19:34:56,555 INFO L158 Benchmark]: Witness Printer took 6.82ms. Allocated memory is still 297.8MB. Free memory is still 197.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:34:56,557 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory is still 25.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 512.40ms. Allocated memory is still 73.4MB. Free memory was 42.2MB in the beginning and 35.0MB in the end (delta: 7.2MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.52ms. Allocated memory is still 73.4MB. Free memory was 35.0MB in the beginning and 32.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.68ms. Allocated memory is still 73.4MB. Free memory was 32.6MB in the beginning and 48.2MB in the end (delta: -15.6MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * RCFGBuilder took 707.11ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 47.8MB in the beginning and 48.1MB in the end (delta: -297.5kB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5997.78ms. Allocated memory was 96.5MB in the beginning and 297.8MB in the end (delta: 201.3MB). Free memory was 47.5MB in the beginning and 197.3MB in the end (delta: -149.8MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. * Witness Printer took 6.82ms. Allocated memory is still 297.8MB. Free memory is still 197.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p2_EAX = 0; [L715] 0 int __unbuffered_p2_EBX = 0; [L717] 0 int a = 0; [L718] 0 _Bool a$flush_delayed; [L719] 0 int a$mem_tmp; [L720] 0 _Bool a$r_buff0_thd0; [L721] 0 _Bool a$r_buff0_thd1; [L722] 0 _Bool a$r_buff0_thd2; [L723] 0 _Bool a$r_buff0_thd3; [L724] 0 _Bool a$r_buff1_thd0; [L725] 0 _Bool a$r_buff1_thd1; [L726] 0 _Bool a$r_buff1_thd2; [L727] 0 _Bool a$r_buff1_thd3; [L728] 0 _Bool a$read_delayed; [L729] 0 int *a$read_delayed_var; [L730] 0 int a$w_buff0; [L731] 0 _Bool a$w_buff0_used; [L732] 0 int a$w_buff1; [L733] 0 _Bool a$w_buff1_used; [L734] 0 _Bool main$tmp_guard0; [L735] 0 _Bool main$tmp_guard1; [L737] 0 int x = 0; [L739] 0 int y = 0; [L741] 0 int z = 0; [L742] 0 _Bool weak$$choice0; [L743] 0 _Bool weak$$choice2; [L843] 0 pthread_t t1105; [L844] FCALL, FORK 0 pthread_create(&t1105, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t1105=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L747] 1 a$w_buff1 = a$w_buff0 [L748] 1 a$w_buff0 = 1 [L749] 1 a$w_buff1_used = a$w_buff0_used [L750] 1 a$w_buff0_used = (_Bool)1 [L751] CALL 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L751] RET 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L752] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L753] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L754] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L755] 1 a$r_buff1_thd3 = a$r_buff0_thd3 [L756] 1 a$r_buff0_thd1 = (_Bool)1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L845] 0 pthread_t t1106; [L846] FCALL, FORK 0 pthread_create(&t1106, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t1105=0, t1106=1, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L759] 1 __unbuffered_p0_EAX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L847] 0 pthread_t t1107; [L848] FCALL, FORK 0 pthread_create(&t1107, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t1105=0, t1106=1, t1107=2, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L776] 2 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L779] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L796] 3 y = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=0] [L799] 3 z = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1] [L802] 3 __unbuffered_p2_EAX = z VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=1] [L805] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L806] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L807] 3 a$flush_delayed = weak$$choice2 [L808] 3 a$mem_tmp = a [L809] 3 a = !a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : a$w_buff1) [L810] 3 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : a$w_buff0)) [L811] 3 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff1 : a$w_buff1)) [L812] 3 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used)) [L813] 3 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L814] 3 a$r_buff0_thd3 = weak$$choice2 ? a$r_buff0_thd3 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$r_buff0_thd3 : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3)) [L815] 3 a$r_buff1_thd3 = weak$$choice2 ? a$r_buff1_thd3 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$r_buff1_thd3 : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L816] 3 __unbuffered_p2_EBX = a [L817] 3 a = a$flush_delayed ? a$mem_tmp : a [L818] 3 a$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=2, z=1] [L782] 2 a = a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L783] 2 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L784] 2 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L785] 2 a$r_buff0_thd2 = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L786] 2 a$r_buff1_thd2 = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=2, z=1] [L762] 1 a = a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L763] 1 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L764] 1 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L765] 1 a$r_buff0_thd1 = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L766] 1 a$r_buff1_thd1 = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=2, z=1] [L821] 3 a = a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a) [L822] 3 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used [L823] 3 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$w_buff1_used [L824] 3 a$r_buff0_thd3 = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3 [L825] 3 a$r_buff1_thd3 = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=2, z=1] [L769] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=2, z=1] [L789] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=2, z=1] [L828] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=2, z=1] [L850] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1105=0, t1106=1, t1107=2, weak$$choice0=0, weak$$choice2=1, x=1, y=2, z=1] [L852] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L852] RET 0 assume_abort_if_not(main$tmp_guard0) [L854] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L855] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L856] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L857] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L858] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1105=0, t1106=1, t1107=2, weak$$choice0=0, weak$$choice2=1, x=1, y=2, z=1] [L861] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1105=0, t1106=1, t1107=2, weak$$choice0=0, weak$$choice2=1, x=1, y=2, z=1] [L863] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=2, z=1] [L17] 0 __assert_fail ("0", "mix042.oepc.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=2, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 841]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 844]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 846]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 848]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 72 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 316 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 300 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1001 IncrementalHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 2 mSDtfsCounter, 1001 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 200 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=4, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 690 SizeOfPredicates, 13 NumberOfNonLiveVariables, 886 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-11 19:34:56,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample