/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/weaver/chl-poker-hand-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 14:00:30,065 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 14:00:30,141 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 14:00:30,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 14:00:30,146 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 14:00:30,185 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 14:00:30,186 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 14:00:30,186 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 14:00:30,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 14:00:30,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 14:00:30,191 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 14:00:30,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 14:00:30,192 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 14:00:30,193 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 14:00:30,193 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 14:00:30,193 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 14:00:30,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 14:00:30,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 14:00:30,194 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 14:00:30,194 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 14:00:30,194 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 14:00:30,195 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 14:00:30,195 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 14:00:30,196 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 14:00:30,196 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 14:00:30,197 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 14:00:30,197 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 14:00:30,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 14:00:30,197 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 14:00:30,198 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 14:00:30,198 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 14:00:30,199 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 14:00:30,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 14:00:30,199 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 14:00:30,199 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 14:00:30,200 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST [2023-08-24 14:00:30,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 14:00:30,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 14:00:30,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 14:00:30,557 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 14:00:30,558 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 14:00:30,559 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c [2023-08-24 14:00:31,822 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 14:00:32,094 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 14:00:32,095 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c [2023-08-24 14:00:32,113 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d000697dc/1950e8b4b63844bbb9a108e59e97dac4/FLAG57318a93f [2023-08-24 14:00:32,125 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d000697dc/1950e8b4b63844bbb9a108e59e97dac4 [2023-08-24 14:00:32,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 14:00:32,129 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 14:00:32,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 14:00:32,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 14:00:32,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 14:00:32,134 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 02:00:32" (1/1) ... [2023-08-24 14:00:32,135 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8be2de0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:00:32, skipping insertion in model container [2023-08-24 14:00:32,135 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 02:00:32" (1/1) ... [2023-08-24 14:00:32,168 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 14:00:32,436 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c[19262,19275] [2023-08-24 14:00:32,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 14:00:32,450 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 14:00:32,521 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-poker-hand-subst.wvr.c[19262,19275] [2023-08-24 14:00:32,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 14:00:32,533 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 14:00:32,533 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 14:00:32,539 INFO L206 MainTranslator]: Completed translation [2023-08-24 14:00:32,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:00:32 WrapperNode [2023-08-24 14:00:32,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 14:00:32,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 14:00:32,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 14:00:32,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 14:00:32,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:00:32" (1/1) ... [2023-08-24 14:00:32,575 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:00:32" (1/1) ... [2023-08-24 14:00:32,682 INFO L138 Inliner]: procedures = 26, calls = 454, calls flagged for inlining = 100, calls inlined = 144, statements flattened = 2377 [2023-08-24 14:00:32,683 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 14:00:32,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 14:00:32,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 14:00:32,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 14:00:32,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:00:32" (1/1) ... [2023-08-24 14:00:32,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:00:32" (1/1) ... [2023-08-24 14:00:32,720 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:00:32" (1/1) ... [2023-08-24 14:00:32,721 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:00:32" (1/1) ... [2023-08-24 14:00:32,767 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:00:32" (1/1) ... [2023-08-24 14:00:32,782 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:00:32" (1/1) ... [2023-08-24 14:00:32,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:00:32" (1/1) ... [2023-08-24 14:00:32,798 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:00:32" (1/1) ... [2023-08-24 14:00:32,811 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 14:00:32,812 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 14:00:32,812 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 14:00:32,812 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 14:00:32,813 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:00:32" (1/1) ... [2023-08-24 14:00:32,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 14:00:32,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 14:00:32,862 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 14:00:32,883 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 14:00:32,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 14:00:32,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 14:00:32,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 14:00:32,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 14:00:32,899 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-24 14:00:32,899 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-24 14:00:32,899 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-24 14:00:32,899 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-24 14:00:32,899 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-24 14:00:32,900 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-24 14:00:32,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 14:00:32,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 14:00:32,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 14:00:32,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-24 14:00:32,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 14:00:32,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 14:00:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 14:00:32,905 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 14:00:33,196 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 14:00:33,199 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 14:00:34,957 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 14:00:37,176 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 14:00:37,176 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-08-24 14:00:37,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 02:00:37 BoogieIcfgContainer [2023-08-24 14:00:37,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 14:00:37,181 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 14:00:37,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 14:00:37,183 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 14:00:37,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 02:00:32" (1/3) ... [2023-08-24 14:00:37,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53172711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 02:00:37, skipping insertion in model container [2023-08-24 14:00:37,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 02:00:32" (2/3) ... [2023-08-24 14:00:37,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53172711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 02:00:37, skipping insertion in model container [2023-08-24 14:00:37,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 02:00:37" (3/3) ... [2023-08-24 14:00:37,186 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-subst.wvr.c [2023-08-24 14:00:37,202 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 14:00:37,202 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-24 14:00:37,202 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 14:00:37,568 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-24 14:00:37,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 669 places, 738 transitions, 1500 flow [2023-08-24 14:00:37,832 INFO L124 PetriNetUnfolderBase]: 79/735 cut-off events. [2023-08-24 14:00:37,833 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 14:00:37,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 748 conditions, 735 events. 79/735 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 924 event pairs, 0 based on Foata normal form. 0/655 useless extension candidates. Maximal degree in co-relation 654. Up to 7 conditions per place. [2023-08-24 14:00:37,841 INFO L82 GeneralOperation]: Start removeDead. Operand has 669 places, 738 transitions, 1500 flow [2023-08-24 14:00:37,851 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 656 places, 725 transitions, 1468 flow [2023-08-24 14:00:37,854 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 14:00:37,862 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 656 places, 725 transitions, 1468 flow [2023-08-24 14:00:37,864 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 656 places, 725 transitions, 1468 flow [2023-08-24 14:00:37,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 656 places, 725 transitions, 1468 flow [2023-08-24 14:00:38,001 INFO L124 PetriNetUnfolderBase]: 79/725 cut-off events. [2023-08-24 14:00:38,002 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 14:00:38,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 725 events. 79/725 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 912 event pairs, 0 based on Foata normal form. 0/646 useless extension candidates. Maximal degree in co-relation 654. Up to 7 conditions per place. [2023-08-24 14:00:38,018 INFO L119 LiptonReduction]: Number of co-enabled transitions 22110 [2023-08-24 14:01:57,236 INFO L134 LiptonReduction]: Checked pairs total: 23447 [2023-08-24 14:01:57,236 INFO L136 LiptonReduction]: Total number of compositions: 855 [2023-08-24 14:01:57,249 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 14:01:57,255 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;@6753c431, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 14:01:57,255 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-24 14:01:57,319 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 14:01:57,319 INFO L124 PetriNetUnfolderBase]: 24/57 cut-off events. [2023-08-24 14:01:57,319 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 14:01:57,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 14:01:57,320 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] [2023-08-24 14:01:57,321 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 14:01:57,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 14:01:57,326 INFO L85 PathProgramCache]: Analyzing trace with hash 6418575, now seen corresponding path program 1 times [2023-08-24 14:01:57,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 14:01:57,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738291006] [2023-08-24 14:01:57,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 14:01:57,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 14:01:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 14:01:58,197 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 14:01:58,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 14:01:58,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738291006] [2023-08-24 14:01:58,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738291006] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 14:01:58,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 14:01:58,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 14:01:58,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283568341] [2023-08-24 14:01:58,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 14:01:58,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 14:01:58,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 14:01:58,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 14:01:58,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 14:01:58,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1593 [2023-08-24 14:01:58,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 58 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 520.3333333333334) internal successors, (1561), 3 states have internal predecessors, (1561), 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 14:01:58,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 14:01:58,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1593 [2023-08-24 14:01:58,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 14:01:59,683 INFO L124 PetriNetUnfolderBase]: 873/1099 cut-off events. [2023-08-24 14:01:59,683 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-08-24 14:01:59,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2266 conditions, 1099 events. 873/1099 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2612 event pairs, 333 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 1844. Up to 1097 conditions per place. [2023-08-24 14:01:59,690 INFO L140 encePairwiseOnDemand]: 1586/1593 looper letters, 55 selfloop transitions, 6 changer transitions 0/61 dead transitions. [2023-08-24 14:01:59,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 61 transitions, 262 flow [2023-08-24 14:01:59,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 14:01:59,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 14:01:59,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1597 transitions. [2023-08-24 14:01:59,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.334170328520611 [2023-08-24 14:01:59,712 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1597 transitions. [2023-08-24 14:01:59,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1597 transitions. [2023-08-24 14:01:59,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 14:01:59,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1597 transitions. [2023-08-24 14:01:59,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 532.3333333333334) internal successors, (1597), 3 states have internal predecessors, (1597), 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 14:01:59,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1593.0) internal successors, (6372), 4 states have internal predecessors, (6372), 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 14:01:59,741 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1593.0) internal successors, (6372), 4 states have internal predecessors, (6372), 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 14:01:59,742 INFO L175 Difference]: Start difference. First operand has 44 places, 58 transitions, 134 flow. Second operand 3 states and 1597 transitions. [2023-08-24 14:01:59,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 61 transitions, 262 flow [2023-08-24 14:01:59,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 61 transitions, 250 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-24 14:01:59,750 INFO L231 Difference]: Finished difference. Result has 41 places, 61 transitions, 154 flow [2023-08-24 14:01:59,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1593, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=41, PETRI_TRANSITIONS=61} [2023-08-24 14:01:59,755 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -3 predicate places. [2023-08-24 14:01:59,755 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 61 transitions, 154 flow [2023-08-24 14:01:59,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 520.3333333333334) internal successors, (1561), 3 states have internal predecessors, (1561), 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 14:01:59,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 14:01:59,757 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] [2023-08-24 14:01:59,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 14:01:59,757 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 14:01:59,758 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 14:01:59,758 INFO L85 PathProgramCache]: Analyzing trace with hash 235699813, now seen corresponding path program 1 times [2023-08-24 14:01:59,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 14:01:59,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909864713] [2023-08-24 14:01:59,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 14:01:59,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 14:01:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 14:02:00,077 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-24 14:02:00,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 14:02:00,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909864713] [2023-08-24 14:02:00,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909864713] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 14:02:00,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 14:02:00,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 14:02:00,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989152332] [2023-08-24 14:02:00,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 14:02:00,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 14:02:00,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 14:02:00,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 14:02:00,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 14:02:00,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1593 [2023-08-24 14:02:00,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 61 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 521.3333333333334) internal successors, (1564), 3 states have internal predecessors, (1564), 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 14:02:00,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 14:02:00,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1593 [2023-08-24 14:02:00,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 14:02:01,387 INFO L124 PetriNetUnfolderBase]: 873/1102 cut-off events. [2023-08-24 14:02:01,388 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 14:02:01,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2242 conditions, 1102 events. 873/1102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2585 event pairs, 333 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 2211. Up to 1100 conditions per place. [2023-08-24 14:02:01,393 INFO L140 encePairwiseOnDemand]: 1586/1593 looper letters, 58 selfloop transitions, 6 changer transitions 0/64 dead transitions. [2023-08-24 14:02:01,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 64 transitions, 288 flow [2023-08-24 14:02:01,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 14:02:01,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 14:02:01,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1597 transitions. [2023-08-24 14:02:01,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.334170328520611 [2023-08-24 14:02:01,400 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1597 transitions. [2023-08-24 14:02:01,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1597 transitions. [2023-08-24 14:02:01,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 14:02:01,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1597 transitions. [2023-08-24 14:02:01,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 532.3333333333334) internal successors, (1597), 3 states have internal predecessors, (1597), 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 14:02:01,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1593.0) internal successors, (6372), 4 states have internal predecessors, (6372), 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 14:02:01,415 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1593.0) internal successors, (6372), 4 states have internal predecessors, (6372), 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 14:02:01,416 INFO L175 Difference]: Start difference. First operand has 41 places, 61 transitions, 154 flow. Second operand 3 states and 1597 transitions. [2023-08-24 14:02:01,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 64 transitions, 288 flow [2023-08-24 14:02:01,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 64 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 14:02:01,418 INFO L231 Difference]: Finished difference. Result has 43 places, 64 transitions, 180 flow [2023-08-24 14:02:01,418 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1593, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=43, PETRI_TRANSITIONS=64} [2023-08-24 14:02:01,419 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -1 predicate places. [2023-08-24 14:02:01,419 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 64 transitions, 180 flow [2023-08-24 14:02:01,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 521.3333333333334) internal successors, (1564), 3 states have internal predecessors, (1564), 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 14:02:01,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 14:02:01,420 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] [2023-08-24 14:02:01,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 14:02:01,421 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 14:02:01,421 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 14:02:01,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1032498358, now seen corresponding path program 1 times [2023-08-24 14:02:01,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 14:02:01,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311176459] [2023-08-24 14:02:01,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 14:02:01,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 14:02:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 14:02:01,734 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-24 14:02:01,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 14:02:01,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311176459] [2023-08-24 14:02:01,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311176459] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 14:02:01,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 14:02:01,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 14:02:01,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867061468] [2023-08-24 14:02:01,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 14:02:01,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 14:02:01,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 14:02:01,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 14:02:01,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 14:02:01,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1593 [2023-08-24 14:02:01,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 64 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 522.3333333333334) internal successors, (1567), 3 states have internal predecessors, (1567), 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 14:02:01,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 14:02:01,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1593 [2023-08-24 14:02:01,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 14:02:03,085 INFO L124 PetriNetUnfolderBase]: 873/1108 cut-off events. [2023-08-24 14:02:03,086 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-24 14:02:03,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2265 conditions, 1108 events. 873/1108 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2585 event pairs, 333 based on Foata normal form. 0/571 useless extension candidates. Maximal degree in co-relation 2229. Up to 1103 conditions per place. [2023-08-24 14:02:03,090 INFO L140 encePairwiseOnDemand]: 1580/1593 looper letters, 58 selfloop transitions, 12 changer transitions 0/70 dead transitions. [2023-08-24 14:02:03,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 70 transitions, 332 flow [2023-08-24 14:02:03,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 14:02:03,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 14:02:03,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1603 transitions. [2023-08-24 14:02:03,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33542582130152754 [2023-08-24 14:02:03,095 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1603 transitions. [2023-08-24 14:02:03,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1603 transitions. [2023-08-24 14:02:03,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 14:02:03,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1603 transitions. [2023-08-24 14:02:03,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 534.3333333333334) internal successors, (1603), 3 states have internal predecessors, (1603), 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 14:02:03,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1593.0) internal successors, (6372), 4 states have internal predecessors, (6372), 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 14:02:03,110 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1593.0) internal successors, (6372), 4 states have internal predecessors, (6372), 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 14:02:03,110 INFO L175 Difference]: Start difference. First operand has 43 places, 64 transitions, 180 flow. Second operand 3 states and 1603 transitions. [2023-08-24 14:02:03,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 70 transitions, 332 flow [2023-08-24 14:02:03,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 70 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 14:02:03,112 INFO L231 Difference]: Finished difference. Result has 45 places, 70 transitions, 236 flow [2023-08-24 14:02:03,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1593, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=45, PETRI_TRANSITIONS=70} [2023-08-24 14:02:03,113 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 1 predicate places. [2023-08-24 14:02:03,113 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 70 transitions, 236 flow [2023-08-24 14:02:03,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 522.3333333333334) internal successors, (1567), 3 states have internal predecessors, (1567), 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 14:02:03,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 14:02:03,115 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, 1, 1, 1, 1] [2023-08-24 14:02:03,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 14:02:03,115 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 14:02:03,115 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 14:02:03,115 INFO L85 PathProgramCache]: Analyzing trace with hash 854079949, now seen corresponding path program 1 times [2023-08-24 14:02:03,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 14:02:03,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826069861] [2023-08-24 14:02:03,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 14:02:03,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 14:02:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 14:02:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-24 14:02:03,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 14:02:03,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826069861] [2023-08-24 14:02:03,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826069861] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-24 14:02:03,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663714630] [2023-08-24 14:02:03,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 14:02:03,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-24 14:02:03,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 14:02:03,609 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-24 14:02:03,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-24 14:02:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 14:02:04,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-24 14:02:04,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-24 14:02:04,600 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-24 14:02:04,600 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-24 14:02:04,640 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-24 14:02:04,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663714630] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-24 14:02:04,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-24 14:02:04,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-08-24 14:02:04,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767804430] [2023-08-24 14:02:04,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-24 14:02:04,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-24 14:02:04,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 14:02:04,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-24 14:02:04,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-24 14:02:04,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1593 [2023-08-24 14:02:04,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 70 transitions, 236 flow. Second operand has 8 states, 8 states have (on average 517.25) internal successors, (4138), 8 states have internal predecessors, (4138), 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 14:02:04,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 14:02:04,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1593 [2023-08-24 14:02:04,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 14:02:06,009 INFO L124 PetriNetUnfolderBase]: 873/1132 cut-off events. [2023-08-24 14:02:06,009 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-24 14:02:06,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2360 conditions, 1132 events. 873/1132 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2572 event pairs, 333 based on Foata normal form. 11/610 useless extension candidates. Maximal degree in co-relation 2296. Up to 1097 conditions per place. [2023-08-24 14:02:06,051 INFO L140 encePairwiseOnDemand]: 1568/1593 looper letters, 46 selfloop transitions, 48 changer transitions 0/94 dead transitions. [2023-08-24 14:02:06,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 94 transitions, 520 flow [2023-08-24 14:02:06,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-24 14:02:06,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-24 14:02:06,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 4206 transitions. [2023-08-24 14:02:06,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3300376647834275 [2023-08-24 14:02:06,063 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 4206 transitions. [2023-08-24 14:02:06,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 4206 transitions. [2023-08-24 14:02:06,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 14:02:06,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 4206 transitions. [2023-08-24 14:02:06,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 525.75) internal successors, (4206), 8 states have internal predecessors, (4206), 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 14:02:06,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 1593.0) internal successors, (14337), 9 states have internal predecessors, (14337), 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 14:02:06,095 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 1593.0) internal successors, (14337), 9 states have internal predecessors, (14337), 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 14:02:06,095 INFO L175 Difference]: Start difference. First operand has 45 places, 70 transitions, 236 flow. Second operand 8 states and 4206 transitions. [2023-08-24 14:02:06,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 94 transitions, 520 flow [2023-08-24 14:02:06,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 94 transitions, 508 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-24 14:02:06,098 INFO L231 Difference]: Finished difference. Result has 52 places, 94 transitions, 466 flow [2023-08-24 14:02:06,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1593, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=466, PETRI_PLACES=52, PETRI_TRANSITIONS=94} [2023-08-24 14:02:06,099 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 8 predicate places. [2023-08-24 14:02:06,099 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 94 transitions, 466 flow [2023-08-24 14:02:06,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 517.25) internal successors, (4138), 8 states have internal predecessors, (4138), 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 14:02:06,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 14:02:06,101 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 14:02:06,115 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-24 14:02:06,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-24 14:02:06,312 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-24 14:02:06,313 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 14:02:06,313 INFO L85 PathProgramCache]: Analyzing trace with hash 367964635, now seen corresponding path program 2 times [2023-08-24 14:02:06,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 14:02:06,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472829235] [2023-08-24 14:02:06,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 14:02:06,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 14:02:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 14:02:06,976 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-08-24 14:02:06,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 14:02:06,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472829235] [2023-08-24 14:02:06,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472829235] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-24 14:02:06,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808932268] [2023-08-24 14:02:06,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-24 14:02:06,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-24 14:02:06,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 14:02:06,981 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-24 14:02:06,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-24 14:02:07,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-24 14:02:07,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-24 14:02:07,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 24 conjunts are in the unsatisfiable core [2023-08-24 14:02:08,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-24 14:02:11,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 14:02:11,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 14:02:11,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 14:02:11,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 14:02:11,602 INFO L322 Elim1Store]: treesize reduction 132, result has 17.0 percent of original size [2023-08-24 14:02:11,603 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 446 treesize of output 411 [2023-08-24 14:02:11,929 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2023-08-24 14:02:12,314 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-24 14:02:12,315 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2023-08-24 14:02:13,554 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2023-08-24 14:04:00,334 WARN L234 SmtUtils]: Spent 1.46m on a formula simplification. DAG size of input: 286 DAG size of output: 246 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-24 14:04:01,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 14:04:01,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 14:04:01,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 14:04:01,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-24 14:06:19,022 WARN L234 SmtUtils]: Spent 2.29m on a formula simplification. DAG size of input: 3798 DAG size of output: 3043 (called from [L 319] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-08-24 14:06:19,031 INFO L322 Elim1Store]: treesize reduction 1644, result has 78.4 percent of original size [2023-08-24 14:06:19,034 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 42 select indices, 42 select index equivalence classes, 4 disjoint index pairs (out of 861 index pairs), introduced 42 new quantified variables, introduced 899 case distinctions, treesize of input 2929 treesize of output 8446 Received shutdown request... [2023-08-24 14:14:10,024 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-08-24 14:14:10,030 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-24 14:14:10,032 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-24 14:14:10,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-24 14:14:10,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-24 14:14:10,237 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 65 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-20-1 term,while PolyPacSimplificationTermWalker was simplifying 20 xjuncts wrt. a ∧-727-37-14-5-13-2-8-1 context. [2023-08-24 14:14:10,239 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-24 14:14:10,239 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-24 14:14:10,239 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-08-24 14:14:10,239 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-08-24 14:14:10,242 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 14:14:10,243 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 14:14:10,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 02:14:10 BasicIcfg [2023-08-24 14:14:10,245 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 14:14:10,246 INFO L158 Benchmark]: Toolchain (without parser) took 818117.44ms. Allocated memory was 381.7MB in the beginning and 2.1GB in the end (delta: 1.7GB). Free memory was 357.3MB in the beginning and 1.3GB in the end (delta: -969.4MB). Peak memory consumption was 1.4GB. Max. memory is 16.0GB. [2023-08-24 14:14:10,246 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 381.7MB. Free memory is still 358.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 14:14:10,247 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.27ms. Allocated memory is still 381.7MB. Free memory was 356.9MB in the beginning and 331.4MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-24 14:14:10,247 INFO L158 Benchmark]: Boogie Procedure Inliner took 142.09ms. Allocated memory is still 381.7MB. Free memory was 331.4MB in the beginning and 320.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-24 14:14:10,247 INFO L158 Benchmark]: Boogie Preprocessor took 127.77ms. Allocated memory is still 381.7MB. Free memory was 319.9MB in the beginning and 309.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-24 14:14:10,248 INFO L158 Benchmark]: RCFGBuilder took 4367.08ms. Allocated memory was 381.7MB in the beginning and 803.2MB in the end (delta: 421.5MB). Free memory was 309.3MB in the beginning and 673.1MB in the end (delta: -363.9MB). Peak memory consumption was 455.9MB. Max. memory is 16.0GB. [2023-08-24 14:14:10,248 INFO L158 Benchmark]: TraceAbstraction took 813064.70ms. Allocated memory was 803.2MB in the beginning and 2.1GB in the end (delta: 1.3GB). Free memory was 672.1MB in the beginning and 1.3GB in the end (delta: -654.6MB). Peak memory consumption was 1.3GB. Max. memory is 16.0GB. [2023-08-24 14:14:10,250 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 381.7MB. Free memory is still 358.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 409.27ms. Allocated memory is still 381.7MB. Free memory was 356.9MB in the beginning and 331.4MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 142.09ms. Allocated memory is still 381.7MB. Free memory was 331.4MB in the beginning and 320.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Preprocessor took 127.77ms. Allocated memory is still 381.7MB. Free memory was 319.9MB in the beginning and 309.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * RCFGBuilder took 4367.08ms. Allocated memory was 381.7MB in the beginning and 803.2MB in the end (delta: 421.5MB). Free memory was 309.3MB in the beginning and 673.1MB in the end (delta: -363.9MB). Peak memory consumption was 455.9MB. Max. memory is 16.0GB. * TraceAbstraction took 813064.70ms. Allocated memory was 803.2MB in the beginning and 2.1GB in the end (delta: 1.3GB). Free memory was 672.1MB in the beginning and 1.3GB in the end (delta: -654.6MB). Peak memory consumption was 1.3GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 79.4s, 656 PlacesBefore, 44 PlacesAfterwards, 725 TransitionsBefore, 58 TransitionsAfterwards, 22110 CoEnabledTransitionPairs, 7 FixpointIterations, 470 TrivialSequentialCompositions, 168 ConcurrentSequentialCompositions, 113 TrivialYvCompositions, 49 ConcurrentYvCompositions, 55 ChoiceCompositions, 855 TotalNumberOfCompositions, 23447 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21909, independent: 21869, independent conditional: 0, independent unconditional: 21869, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 12759, independent: 12725, independent conditional: 0, independent unconditional: 12725, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21909, independent: 9144, independent conditional: 0, independent unconditional: 9144, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 12759, unknown conditional: 0, unknown unconditional: 12759] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 344]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 65 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-20-1 term,while PolyPacSimplificationTermWalker was simplifying 20 xjuncts wrt. a ∧-727-37-14-5-13-2-8-1 context. - TimeoutResultAtElement [Line: 337]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 65 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-20-1 term,while PolyPacSimplificationTermWalker was simplifying 20 xjuncts wrt. a ∧-727-37-14-5-13-2-8-1 context. - TimeoutResultAtElement [Line: 338]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 65 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-20-1 term,while PolyPacSimplificationTermWalker was simplifying 20 xjuncts wrt. a ∧-727-37-14-5-13-2-8-1 context. - TimeoutResultAtElement [Line: 336]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 65 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-20-1 term,while PolyPacSimplificationTermWalker was simplifying 20 xjuncts wrt. a ∧-727-37-14-5-13-2-8-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 801 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 812.6s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 79.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 528 IncrementalHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 0 mSDtfsCounter, 528 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=466occurred in iteration=4, InterpolantAutomatonStates: 17, 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: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 SizeOfPredicates, 1 NumberOfNonLiveVariables, 666 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 42/45 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: Timeout Completed graceful shutdown