/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 11:01:43,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 11:01:44,033 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-24 11:01:44,037 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 11:01:44,038 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 11:01:44,062 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 11:01:44,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 11:01:44,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 11:01:44,063 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 11:01:44,066 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 11:01:44,066 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 11:01:44,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 11:01:44,067 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 11:01:44,068 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 11:01:44,068 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 11:01:44,068 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 11:01:44,068 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 11:01:44,068 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 11:01:44,068 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 11:01:44,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 11:01:44,069 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 11:01:44,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 11:01:44,070 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 11:01:44,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 11:01:44,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 11:01:44,070 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 11:01:44,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 11:01:44,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 11:01:44,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 11:01:44,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 11:01:44,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 11:01:44,072 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 11:01:44,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 11:01:44,072 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 11:01:44,072 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 11:01:44,072 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST [2023-08-24 11:01:44,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 11:01:44,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 11:01:44,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 11:01:44,335 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 11:01:44,335 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 11:01:44,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2023-08-24 11:01:45,488 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 11:01:45,777 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 11:01:45,778 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2023-08-24 11:01:45,794 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e80bc96/8220692711e64da9a2741e429fae63fe/FLAG80b08b7a9 [2023-08-24 11:01:45,809 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e80bc96/8220692711e64da9a2741e429fae63fe [2023-08-24 11:01:45,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 11:01:45,814 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 11:01:45,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 11:01:45,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 11:01:45,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 11:01:45,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 11:01:45" (1/1) ... [2023-08-24 11:01:45,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f46e472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:45, skipping insertion in model container [2023-08-24 11:01:45,821 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 11:01:45" (1/1) ... [2023-08-24 11:01:45,870 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 11:01:46,032 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-24 11:01:46,252 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i[55568,55581] [2023-08-24 11:01:46,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 11:01:46,289 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 11:01:46,313 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-24 11:01:46,315 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [283] [2023-08-24 11:01:46,317 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [283] [2023-08-24 11:01:46,337 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i[55568,55581] [2023-08-24 11:01:46,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 11:01:46,394 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 11:01:46,395 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 11:01:46,395 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 11:01:46,399 INFO L206 MainTranslator]: Completed translation [2023-08-24 11:01:46,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:46 WrapperNode [2023-08-24 11:01:46,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 11:01:46,401 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 11:01:46,401 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 11:01:46,401 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 11:01:46,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:46" (1/1) ... [2023-08-24 11:01:46,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:46" (1/1) ... [2023-08-24 11:01:46,451 INFO L138 Inliner]: procedures = 325, calls = 53, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2023-08-24 11:01:46,452 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 11:01:46,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 11:01:46,455 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 11:01:46,455 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 11:01:46,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:46" (1/1) ... [2023-08-24 11:01:46,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:46" (1/1) ... [2023-08-24 11:01:46,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:46" (1/1) ... [2023-08-24 11:01:46,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:46" (1/1) ... [2023-08-24 11:01:46,477 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:46" (1/1) ... [2023-08-24 11:01:46,478 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:46" (1/1) ... [2023-08-24 11:01:46,479 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:46" (1/1) ... [2023-08-24 11:01:46,480 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:46" (1/1) ... [2023-08-24 11:01:46,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 11:01:46,492 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 11:01:46,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 11:01:46,493 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 11:01:46,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:46" (1/1) ... [2023-08-24 11:01:46,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 11:01:46,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 11:01:46,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-24 11:01:46,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-24 11:01:46,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 11:01:46,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 11:01:46,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 11:01:46,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 11:01:46,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 11:01:46,542 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2023-08-24 11:01:46,542 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2023-08-24 11:01:46,542 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-24 11:01:46,542 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-24 11:01:46,542 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-24 11:01:46,542 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-24 11:01:46,542 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-24 11:01:46,542 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-24 11:01:46,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 11:01:46,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-24 11:01:46,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 11:01:46,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 11:01:46,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 11:01:46,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 11:01:46,544 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 11:01:46,642 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 11:01:46,644 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 11:01:46,780 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 11:01:46,785 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 11:01:46,785 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 11:01:46,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 11:01:46 BoogieIcfgContainer [2023-08-24 11:01:46,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 11:01:46,788 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 11:01:46,788 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 11:01:46,790 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 11:01:46,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 11:01:45" (1/3) ... [2023-08-24 11:01:46,791 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a744ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 11:01:46, skipping insertion in model container [2023-08-24 11:01:46,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 11:01:46" (2/3) ... [2023-08-24 11:01:46,791 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a744ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 11:01:46, skipping insertion in model container [2023-08-24 11:01:46,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 11:01:46" (3/3) ... [2023-08-24 11:01:46,792 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2023-08-24 11:01:46,803 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 11:01:46,803 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-24 11:01:46,803 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 11:01:46,909 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2023-08-24 11:01:46,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 195 transitions, 497 flow [2023-08-24 11:01:46,982 INFO L124 PetriNetUnfolderBase]: 7/132 cut-off events. [2023-08-24 11:01:46,982 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-24 11:01:46,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 132 events. 7/132 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2023-08-24 11:01:46,987 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 195 transitions, 497 flow [2023-08-24 11:01:46,990 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 121 transitions, 293 flow [2023-08-24 11:01:46,992 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 11:01:46,998 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 121 transitions, 293 flow [2023-08-24 11:01:47,000 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 121 transitions, 293 flow [2023-08-24 11:01:47,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 121 transitions, 293 flow [2023-08-24 11:01:47,030 INFO L124 PetriNetUnfolderBase]: 6/121 cut-off events. [2023-08-24 11:01:47,031 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-24 11:01:47,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 121 events. 6/121 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 49 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2023-08-24 11:01:47,032 INFO L119 LiptonReduction]: Number of co-enabled transitions 1344 [2023-08-24 11:01:49,374 INFO L134 LiptonReduction]: Checked pairs total: 2823 [2023-08-24 11:01:49,374 INFO L136 LiptonReduction]: Total number of compositions: 85 [2023-08-24 11:01:49,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 11:01:49,390 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@531f89d5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 11:01:49,390 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-24 11:01:49,398 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 11:01:49,398 INFO L124 PetriNetUnfolderBase]: 5/40 cut-off events. [2023-08-24 11:01:49,398 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-24 11:01:49,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 11:01:49,399 INFO L208 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, 1, 1, 1, 1] [2023-08-24 11:01:49,399 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2023-08-24 11:01:49,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 11:01:49,402 INFO L85 PathProgramCache]: Analyzing trace with hash -2069026674, now seen corresponding path program 1 times [2023-08-24 11:01:49,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 11:01:49,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272760189] [2023-08-24 11:01:49,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 11:01:49,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 11:01:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 11:01:49,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 11:01:49,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 11:01:49,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272760189] [2023-08-24 11:01:49,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272760189] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 11:01:49,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 11:01:49,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 11:01:49,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196035430] [2023-08-24 11:01:49,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 11:01:49,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 11:01:49,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 11:01:49,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 11:01:49,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 11:01:49,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 282 [2023-08-24 11:01:49,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 41 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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) [2023-08-24 11:01:49,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 11:01:49,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 282 [2023-08-24 11:01:49,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 11:01:50,063 INFO L124 PetriNetUnfolderBase]: 582/958 cut-off events. [2023-08-24 11:01:50,063 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2023-08-24 11:01:50,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2090 conditions, 958 events. 582/958 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3419 event pairs, 172 based on Foata normal form. 1/901 useless extension candidates. Maximal degree in co-relation 2068. Up to 523 conditions per place. [2023-08-24 11:01:50,071 INFO L140 encePairwiseOnDemand]: 274/282 looper letters, 43 selfloop transitions, 7 changer transitions 11/66 dead transitions. [2023-08-24 11:01:50,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 66 transitions, 341 flow [2023-08-24 11:01:50,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 11:01:50,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 11:01:50,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 464 transitions. [2023-08-24 11:01:50,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5484633569739953 [2023-08-24 11:01:50,088 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 464 transitions. [2023-08-24 11:01:50,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 464 transitions. [2023-08-24 11:01:50,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 11:01:50,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 464 transitions. [2023-08-24 11:01:50,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 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) [2023-08-24 11:01:50,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 282.0) internal successors, (1128), 4 states have internal predecessors, (1128), 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) [2023-08-24 11:01:50,102 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 282.0) internal successors, (1128), 4 states have internal predecessors, (1128), 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) [2023-08-24 11:01:50,103 INFO L175 Difference]: Start difference. First operand has 55 places, 41 transitions, 133 flow. Second operand 3 states and 464 transitions. [2023-08-24 11:01:50,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 66 transitions, 341 flow [2023-08-24 11:01:50,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 66 transitions, 283 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-08-24 11:01:50,111 INFO L231 Difference]: Finished difference. Result has 47 places, 47 transitions, 153 flow [2023-08-24 11:01:50,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=47, PETRI_TRANSITIONS=47} [2023-08-24 11:01:50,115 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -8 predicate places. [2023-08-24 11:01:50,115 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 47 transitions, 153 flow [2023-08-24 11:01:50,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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) [2023-08-24 11:01:50,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 11:01:50,116 INFO L208 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, 1, 1, 1, 1] [2023-08-24 11:01:50,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 11:01:50,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2023-08-24 11:01:50,117 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 11:01:50,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1908235806, now seen corresponding path program 2 times [2023-08-24 11:01:50,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 11:01:50,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318741291] [2023-08-24 11:01:50,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 11:01:50,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 11:01:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 11:01:50,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 11:01:50,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 11:01:50,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318741291] [2023-08-24 11:01:50,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318741291] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 11:01:50,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 11:01:50,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 11:01:50,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034697989] [2023-08-24 11:01:50,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 11:01:50,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 11:01:50,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 11:01:50,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 11:01:50,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 11:01:50,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 282 [2023-08-24 11:01:50,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 47 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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) [2023-08-24 11:01:50,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 11:01:50,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 282 [2023-08-24 11:01:50,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 11:01:50,497 INFO L124 PetriNetUnfolderBase]: 527/896 cut-off events. [2023-08-24 11:01:50,497 INFO L125 PetriNetUnfolderBase]: For 528/528 co-relation queries the response was YES. [2023-08-24 11:01:50,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2451 conditions, 896 events. 527/896 cut-off events. For 528/528 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3333 event pairs, 193 based on Foata normal form. 1/831 useless extension candidates. Maximal degree in co-relation 1061. Up to 654 conditions per place. [2023-08-24 11:01:50,500 INFO L140 encePairwiseOnDemand]: 275/282 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2023-08-24 11:01:50,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 68 transitions, 346 flow [2023-08-24 11:01:50,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 11:01:50,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 11:01:50,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 460 transitions. [2023-08-24 11:01:50,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5437352245862884 [2023-08-24 11:01:50,501 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 460 transitions. [2023-08-24 11:01:50,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 460 transitions. [2023-08-24 11:01:50,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 11:01:50,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 460 transitions. [2023-08-24 11:01:50,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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) [2023-08-24 11:01:50,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 282.0) internal successors, (1128), 4 states have internal predecessors, (1128), 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) [2023-08-24 11:01:50,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 282.0) internal successors, (1128), 4 states have internal predecessors, (1128), 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) [2023-08-24 11:01:50,508 INFO L175 Difference]: Start difference. First operand has 47 places, 47 transitions, 153 flow. Second operand 3 states and 460 transitions. [2023-08-24 11:01:50,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 68 transitions, 346 flow [2023-08-24 11:01:50,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 68 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 11:01:50,515 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2023-08-24 11:01:50,516 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2023-08-24 11:01:50,516 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -9 predicate places. [2023-08-24 11:01:50,516 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2023-08-24 11:01:50,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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) [2023-08-24 11:01:50,519 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2023-08-24 11:01:50,519 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 12 remaining) [2023-08-24 11:01:50,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 12 remaining) [2023-08-24 11:01:50,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2023-08-24 11:01:50,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2023-08-24 11:01:50,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2023-08-24 11:01:50,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2023-08-24 11:01:50,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2023-08-24 11:01:50,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2023-08-24 11:01:50,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-08-24 11:01:50,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-08-24 11:01:50,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork4Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-08-24 11:01:50,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 11:01:50,525 INFO L445 BasicCegarLoop]: Path program histogram: [2] [2023-08-24 11:01:50,532 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 11:01:50,532 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 11:01:50,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 11:01:50 BasicIcfg [2023-08-24 11:01:50,536 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 11:01:50,537 INFO L158 Benchmark]: Toolchain (without parser) took 4723.18ms. Allocated memory was 375.4MB in the beginning and 474.0MB in the end (delta: 98.6MB). Free memory was 349.5MB in the beginning and 279.9MB in the end (delta: 69.6MB). Peak memory consumption was 167.6MB. Max. memory is 16.0GB. [2023-08-24 11:01:50,537 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 375.4MB. Free memory is still 351.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 11:01:50,537 INFO L158 Benchmark]: CACSL2BoogieTranslator took 584.06ms. Allocated memory is still 375.4MB. Free memory was 349.2MB in the beginning and 316.0MB in the end (delta: 33.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-08-24 11:01:50,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.22ms. Allocated memory is still 375.4MB. Free memory was 316.0MB in the beginning and 313.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 11:01:50,538 INFO L158 Benchmark]: Boogie Preprocessor took 39.63ms. Allocated memory is still 375.4MB. Free memory was 313.6MB in the beginning and 312.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 11:01:50,538 INFO L158 Benchmark]: RCFGBuilder took 294.17ms. Allocated memory is still 375.4MB. Free memory was 311.8MB in the beginning and 343.8MB in the end (delta: -32.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-24 11:01:50,538 INFO L158 Benchmark]: TraceAbstraction took 3748.46ms. Allocated memory was 375.4MB in the beginning and 474.0MB in the end (delta: 98.6MB). Free memory was 343.2MB in the beginning and 279.9MB in the end (delta: 63.3MB). Peak memory consumption was 161.9MB. Max. memory is 16.0GB. [2023-08-24 11:01:50,541 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 375.4MB. Free memory is still 351.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 584.06ms. Allocated memory is still 375.4MB. Free memory was 349.2MB in the beginning and 316.0MB in the end (delta: 33.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 51.22ms. Allocated memory is still 375.4MB. Free memory was 316.0MB in the beginning and 313.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.63ms. Allocated memory is still 375.4MB. Free memory was 313.6MB in the beginning and 312.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 294.17ms. Allocated memory is still 375.4MB. Free memory was 311.8MB in the beginning and 343.8MB in the end (delta: -32.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3748.46ms. Allocated memory was 375.4MB in the beginning and 474.0MB in the end (delta: 98.6MB). Free memory was 343.2MB in the beginning and 279.9MB in the end (delta: 63.3MB). Peak memory consumption was 161.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 283]: Unsoundness Warning unspecified type, defaulting to int C: short [283] - GenericResultAtLocation [Line: 283]: Unsoundness Warning unspecified type, defaulting to int C: short [283] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 134 PlacesBefore, 55 PlacesAfterwards, 121 TransitionsBefore, 41 TransitionsAfterwards, 1344 CoEnabledTransitionPairs, 5 FixpointIterations, 24 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 85 TotalNumberOfCompositions, 2823 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1982, independent: 1872, independent conditional: 0, independent unconditional: 1872, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 716, independent: 674, independent conditional: 0, independent unconditional: 674, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1982, independent: 1198, independent conditional: 0, independent unconditional: 1198, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 716, unknown conditional: 0, unknown unconditional: 716] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1123]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 224 locations, 12 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: 3.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 170 IncrementalHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 2 mSDtfsCounter, 170 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=153occurred in iteration=1, InterpolantAutomatonStates: 6, 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 226 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-24 11:01:50,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...