/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 00:22:44,724 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 00:22:44,805 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 [2023-08-25 00:22:44,812 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 00:22:44,812 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 00:22:44,841 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 00:22:44,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 00:22:44,842 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 00:22:44,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 00:22:44,846 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 00:22:44,846 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 00:22:44,846 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 00:22:44,846 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 00:22:44,847 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 00:22:44,848 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 00:22:44,848 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 00:22:44,848 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 00:22:44,848 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 00:22:44,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 00:22:44,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 00:22:44,849 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 00:22:44,850 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 00:22:44,850 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 00:22:44,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 00:22:44,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 00:22:44,851 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 00:22:44,851 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 00:22:44,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 00:22:44,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 00:22:44,851 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 00:22:44,852 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 00:22:44,852 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 00:22:44,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 00:22:44,853 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 00:22:44,853 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 00:22:44,853 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 00:22:45,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 00:22:45,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 00:22:45,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 00:22:45,173 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 00:22:45,173 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 00:22:45,174 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 00:22:46,318 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 00:22:46,604 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 00:22:46,604 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 00:22:46,629 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8948a803f/a777c09669284e57861ed6dd148d2234/FLAG60dd5e141 [2023-08-25 00:22:46,643 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8948a803f/a777c09669284e57861ed6dd148d2234 [2023-08-25 00:22:46,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 00:22:46,649 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 00:22:46,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 00:22:46,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 00:22:46,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 00:22:46,655 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 12:22:46" (1/1) ... [2023-08-25 00:22:46,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b2d4aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 12:22:46, skipping insertion in model container [2023-08-25 00:22:46,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 12:22:46" (1/1) ... [2023-08-25 00:22:46,702 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 00:22:46,988 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 00:22:47,001 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 00:22:47,042 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 00:22:47,043 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-25 00:22:47,058 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 00:22:47,086 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 00:22:47,086 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 00:22:47,092 INFO L206 MainTranslator]: Completed translation [2023-08-25 00:22:47,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 12:22:47 WrapperNode [2023-08-25 00:22:47,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 00:22:47,093 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 00:22:47,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 00:22:47,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 00:22:47,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 12:22:47" (1/1) ... [2023-08-25 00:22:47,128 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 12:22:47" (1/1) ... [2023-08-25 00:22:47,155 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 103 [2023-08-25 00:22:47,155 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 00:22:47,156 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 00:22:47,156 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 00:22:47,156 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 00:22:47,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 12:22:47" (1/1) ... [2023-08-25 00:22:47,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 12:22:47" (1/1) ... [2023-08-25 00:22:47,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 12:22:47" (1/1) ... [2023-08-25 00:22:47,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 12:22:47" (1/1) ... [2023-08-25 00:22:47,185 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 12:22:47" (1/1) ... [2023-08-25 00:22:47,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 12:22:47" (1/1) ... [2023-08-25 00:22:47,187 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 12:22:47" (1/1) ... [2023-08-25 00:22:47,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 12:22:47" (1/1) ... [2023-08-25 00:22:47,191 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 00:22:47,192 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 00:22:47,192 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 00:22:47,192 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 00:22:47,206 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 12:22:47" (1/1) ... [2023-08-25 00:22:47,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 00:22:47,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 00:22:47,230 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) [2023-08-25 00:22:47,252 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 [2023-08-25 00:22:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 00:22:47,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 00:22:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 00:22:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 00:22:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 00:22:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-25 00:22:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-25 00:22:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-25 00:22:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-25 00:22:47,269 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-25 00:22:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-25 00:22:47,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 00:22:47,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 00:22:47,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 00:22:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 00:22:47,273 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 00:22:47,408 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 00:22:47,410 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 00:22:47,601 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 00:22:47,751 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 00:22:47,752 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 00:22:47,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 12:22:47 BoogieIcfgContainer [2023-08-25 00:22:47,754 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 00:22:47,756 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 00:22:47,756 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 00:22:47,758 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 00:22:47,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 12:22:46" (1/3) ... [2023-08-25 00:22:47,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165a0c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 12:22:47, skipping insertion in model container [2023-08-25 00:22:47,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 12:22:47" (2/3) ... [2023-08-25 00:22:47,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165a0c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 12:22:47, skipping insertion in model container [2023-08-25 00:22:47,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 12:22:47" (3/3) ... [2023-08-25 00:22:47,762 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-08-25 00:22:47,779 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 00:22:47,780 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-08-25 00:22:47,780 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 00:22:47,832 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 00:22:47,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 117 transitions, 249 flow [2023-08-25 00:22:47,932 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-25 00:22:47,932 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 00:22:47,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 127 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-25 00:22:47,938 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 117 transitions, 249 flow [2023-08-25 00:22:47,942 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 114 transitions, 237 flow [2023-08-25 00:22:47,946 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 00:22:47,958 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-25 00:22:47,961 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 114 transitions, 237 flow [2023-08-25 00:22:47,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions, 237 flow [2023-08-25 00:22:47,992 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-08-25 00:22:47,992 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 00:22:47,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 127 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-25 00:22:47,996 INFO L119 LiptonReduction]: Number of co-enabled transitions 4092 [2023-08-25 00:22:51,798 INFO L134 LiptonReduction]: Checked pairs total: 14377 [2023-08-25 00:22:51,798 INFO L136 LiptonReduction]: Total number of compositions: 110 [2023-08-25 00:22:51,810 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 00:22:51,815 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;@39d0b0ec, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 00:22:51,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2023-08-25 00:22:51,817 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 00:22:51,817 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-25 00:22:51,817 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 00:22:51,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 00:22:51,818 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 00:22:51,818 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-08-25 00:22:51,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 00:22:51,822 INFO L85 PathProgramCache]: Analyzing trace with hash 587570, now seen corresponding path program 1 times [2023-08-25 00:22:51,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 00:22:51,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472325774] [2023-08-25 00:22:51,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 00:22:51,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 00:22:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 00:22:51,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 00:22:51,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 00:22:51,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472325774] [2023-08-25 00:22:51,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472325774] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 00:22:51,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 00:22:51,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 00:22:51,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310735949] [2023-08-25 00:22:51,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 00:22:51,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 00:22:51,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 00:22:51,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 00:22:51,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 00:22:51,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 227 [2023-08-25 00:22:51,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 42 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 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) [2023-08-25 00:22:51,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 00:22:51,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 227 [2023-08-25 00:22:51,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 00:22:52,146 INFO L124 PetriNetUnfolderBase]: 567/864 cut-off events. [2023-08-25 00:22:52,146 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-25 00:22:52,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 864 events. 567/864 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3165 event pairs, 567 based on Foata normal form. 0/800 useless extension candidates. Maximal degree in co-relation 1764. Up to 865 conditions per place. [2023-08-25 00:22:52,156 INFO L140 encePairwiseOnDemand]: 203/227 looper letters, 17 selfloop transitions, 0 changer transitions 1/18 dead transitions. [2023-08-25 00:22:52,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 81 flow [2023-08-25 00:22:52,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 00:22:52,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 00:22:52,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 198 transitions. [2023-08-25 00:22:52,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43612334801762115 [2023-08-25 00:22:52,169 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 198 transitions. [2023-08-25 00:22:52,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 198 transitions. [2023-08-25 00:22:52,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 00:22:52,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 198 transitions. [2023-08-25 00:22:52,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 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) [2023-08-25 00:22:52,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 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) [2023-08-25 00:22:52,181 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 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) [2023-08-25 00:22:52,182 INFO L175 Difference]: Start difference. First operand has 51 places, 42 transitions, 93 flow. Second operand 2 states and 198 transitions. [2023-08-25 00:22:52,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 81 flow [2023-08-25 00:22:52,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 00:22:52,186 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 40 flow [2023-08-25 00:22:52,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2023-08-25 00:22:52,190 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -25 predicate places. [2023-08-25 00:22:52,191 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 40 flow [2023-08-25 00:22:52,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 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) [2023-08-25 00:22:52,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 00:22:52,191 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 00:22:52,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 00:22:52,192 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-08-25 00:22:52,200 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 00:22:52,200 INFO L85 PathProgramCache]: Analyzing trace with hash 205879763, now seen corresponding path program 1 times [2023-08-25 00:22:52,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 00:22:52,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815472225] [2023-08-25 00:22:52,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 00:22:52,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 00:22:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 00:22:52,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 00:22:52,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 00:22:52,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815472225] [2023-08-25 00:22:52,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815472225] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 00:22:52,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 00:22:52,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 00:22:52,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613819117] [2023-08-25 00:22:52,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 00:22:52,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 00:22:52,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 00:22:52,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 00:22:52,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 00:22:52,359 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 227 [2023-08-25 00:22:52,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2023-08-25 00:22:52,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 00:22:52,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 227 [2023-08-25 00:22:52,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 00:22:52,423 INFO L124 PetriNetUnfolderBase]: 383/600 cut-off events. [2023-08-25 00:22:52,424 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 00:22:52,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 600 events. 383/600 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2056 event pairs, 119 based on Foata normal form. 16/616 useless extension candidates. Maximal degree in co-relation 1242. Up to 441 conditions per place. [2023-08-25 00:22:52,427 INFO L140 encePairwiseOnDemand]: 224/227 looper letters, 22 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-08-25 00:22:52,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 102 flow [2023-08-25 00:22:52,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 00:22:52,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 00:22:52,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-25 00:22:52,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37591776798825255 [2023-08-25 00:22:52,430 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-25 00:22:52,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-25 00:22:52,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 00:22:52,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-25 00:22:52,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-08-25 00:22:52,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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) [2023-08-25 00:22:52,433 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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) [2023-08-25 00:22:52,433 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 40 flow. Second operand 3 states and 256 transitions. [2023-08-25 00:22:52,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 102 flow [2023-08-25 00:22:52,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 24 transitions, 102 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 00:22:52,434 INFO L231 Difference]: Finished difference. Result has 28 places, 17 transitions, 48 flow [2023-08-25 00:22:52,434 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=28, PETRI_TRANSITIONS=17} [2023-08-25 00:22:52,435 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -23 predicate places. [2023-08-25 00:22:52,435 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 17 transitions, 48 flow [2023-08-25 00:22:52,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2023-08-25 00:22:52,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 00:22:52,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 00:22:52,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 00:22:52,436 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-08-25 00:22:52,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 00:22:52,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2087303934, now seen corresponding path program 1 times [2023-08-25 00:22:52,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 00:22:52,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926801052] [2023-08-25 00:22:52,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 00:22:52,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 00:22:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 00:22:52,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 00:22:52,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 00:22:52,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926801052] [2023-08-25 00:22:52,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926801052] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 00:22:52,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 00:22:52,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 00:22:52,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656404437] [2023-08-25 00:22:52,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 00:22:52,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 00:22:52,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 00:22:52,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 00:22:52,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 00:22:52,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 227 [2023-08-25 00:22:52,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 17 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2023-08-25 00:22:52,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 00:22:52,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 227 [2023-08-25 00:22:52,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 00:22:52,569 INFO L124 PetriNetUnfolderBase]: 354/559 cut-off events. [2023-08-25 00:22:52,569 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2023-08-25 00:22:52,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1266 conditions, 559 events. 354/559 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2158 event pairs, 63 based on Foata normal form. 12/571 useless extension candidates. Maximal degree in co-relation 1261. Up to 478 conditions per place. [2023-08-25 00:22:52,572 INFO L140 encePairwiseOnDemand]: 224/227 looper letters, 26 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2023-08-25 00:22:52,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 28 transitions, 133 flow [2023-08-25 00:22:52,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 00:22:52,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 00:22:52,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2023-08-25 00:22:52,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38179148311306904 [2023-08-25 00:22:52,575 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 260 transitions. [2023-08-25 00:22:52,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 260 transitions. [2023-08-25 00:22:52,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 00:22:52,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 260 transitions. [2023-08-25 00:22:52,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2023-08-25 00:22:52,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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) [2023-08-25 00:22:52,579 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 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) [2023-08-25 00:22:52,580 INFO L175 Difference]: Start difference. First operand has 28 places, 17 transitions, 48 flow. Second operand 3 states and 260 transitions. [2023-08-25 00:22:52,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 28 transitions, 133 flow [2023-08-25 00:22:52,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 127 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 00:22:52,582 INFO L231 Difference]: Finished difference. Result has 29 places, 17 transitions, 52 flow [2023-08-25 00:22:52,582 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=29, PETRI_TRANSITIONS=17} [2023-08-25 00:22:52,583 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -22 predicate places. [2023-08-25 00:22:52,583 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 17 transitions, 52 flow [2023-08-25 00:22:52,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2023-08-25 00:22:52,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 00:22:52,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 00:22:52,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 00:22:52,587 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-08-25 00:22:52,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 00:22:52,588 INFO L85 PathProgramCache]: Analyzing trace with hash 281910967, now seen corresponding path program 1 times [2023-08-25 00:22:52,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 00:22:52,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747828496] [2023-08-25 00:22:52,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 00:22:52,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 00:22:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 00:22:52,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 00:22:52,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 00:22:52,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747828496] [2023-08-25 00:22:52,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747828496] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 00:22:52,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 00:22:52,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 00:22:52,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598299273] [2023-08-25 00:22:52,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 00:22:52,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 00:22:52,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 00:22:52,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 00:22:52,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 00:22:52,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 227 [2023-08-25 00:22:52,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 17 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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) [2023-08-25 00:22:52,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 00:22:52,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 227 [2023-08-25 00:22:52,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 00:22:52,797 INFO L124 PetriNetUnfolderBase]: 393/634 cut-off events. [2023-08-25 00:22:52,798 INFO L125 PetriNetUnfolderBase]: For 181/181 co-relation queries the response was YES. [2023-08-25 00:22:52,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1481 conditions, 634 events. 393/634 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2301 event pairs, 167 based on Foata normal form. 36/670 useless extension candidates. Maximal degree in co-relation 1475. Up to 256 conditions per place. [2023-08-25 00:22:52,800 INFO L140 encePairwiseOnDemand]: 223/227 looper letters, 23 selfloop transitions, 3 changer transitions 5/31 dead transitions. [2023-08-25 00:22:52,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 145 flow [2023-08-25 00:22:52,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 00:22:52,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 00:22:52,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 337 transitions. [2023-08-25 00:22:52,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3711453744493392 [2023-08-25 00:22:52,803 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 337 transitions. [2023-08-25 00:22:52,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 337 transitions. [2023-08-25 00:22:52,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 00:22:52,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 337 transitions. [2023-08-25 00:22:52,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 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) [2023-08-25 00:22:52,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 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) [2023-08-25 00:22:52,806 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 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) [2023-08-25 00:22:52,806 INFO L175 Difference]: Start difference. First operand has 29 places, 17 transitions, 52 flow. Second operand 4 states and 337 transitions. [2023-08-25 00:22:52,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 31 transitions, 145 flow [2023-08-25 00:22:52,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 139 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 00:22:52,808 INFO L231 Difference]: Finished difference. Result has 32 places, 17 transitions, 62 flow [2023-08-25 00:22:52,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=32, PETRI_TRANSITIONS=17} [2023-08-25 00:22:52,809 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -19 predicate places. [2023-08-25 00:22:52,809 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 17 transitions, 62 flow [2023-08-25 00:22:52,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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) [2023-08-25 00:22:52,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 00:22:52,810 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 00:22:52,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 00:22:52,810 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-08-25 00:22:52,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 00:22:52,810 INFO L85 PathProgramCache]: Analyzing trace with hash 149265398, now seen corresponding path program 1 times [2023-08-25 00:22:52,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 00:22:52,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899195935] [2023-08-25 00:22:52,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 00:22:52,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 00:22:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 00:22:52,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 00:22:52,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 00:22:52,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899195935] [2023-08-25 00:22:52,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899195935] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 00:22:52,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 00:22:52,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 00:22:52,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691763494] [2023-08-25 00:22:52,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 00:22:52,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 00:22:52,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 00:22:52,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 00:22:52,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 00:22:52,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 227 [2023-08-25 00:22:52,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 17 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2023-08-25 00:22:52,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 00:22:52,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 227 [2023-08-25 00:22:52,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 00:22:52,929 INFO L124 PetriNetUnfolderBase]: 187/326 cut-off events. [2023-08-25 00:22:52,929 INFO L125 PetriNetUnfolderBase]: For 368/368 co-relation queries the response was YES. [2023-08-25 00:22:52,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 326 events. 187/326 cut-off events. For 368/368 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1182 event pairs, 77 based on Foata normal form. 24/350 useless extension candidates. Maximal degree in co-relation 817. Up to 117 conditions per place. [2023-08-25 00:22:52,931 INFO L140 encePairwiseOnDemand]: 223/227 looper letters, 19 selfloop transitions, 3 changer transitions 11/33 dead transitions. [2023-08-25 00:22:52,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 179 flow [2023-08-25 00:22:52,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 00:22:52,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 00:22:52,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 339 transitions. [2023-08-25 00:22:52,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3733480176211454 [2023-08-25 00:22:52,933 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 339 transitions. [2023-08-25 00:22:52,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 339 transitions. [2023-08-25 00:22:52,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 00:22:52,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 339 transitions. [2023-08-25 00:22:52,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 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) [2023-08-25 00:22:52,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 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) [2023-08-25 00:22:52,936 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 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) [2023-08-25 00:22:52,937 INFO L175 Difference]: Start difference. First operand has 32 places, 17 transitions, 62 flow. Second operand 4 states and 339 transitions. [2023-08-25 00:22:52,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 179 flow [2023-08-25 00:22:52,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 33 transitions, 148 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-08-25 00:22:52,939 INFO L231 Difference]: Finished difference. Result has 31 places, 17 transitions, 58 flow [2023-08-25 00:22:52,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=31, PETRI_TRANSITIONS=17} [2023-08-25 00:22:52,940 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -20 predicate places. [2023-08-25 00:22:52,940 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 17 transitions, 58 flow [2023-08-25 00:22:52,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2023-08-25 00:22:52,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 00:22:52,940 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 00:22:52,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 00:22:52,941 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-08-25 00:22:52,941 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 00:22:52,941 INFO L85 PathProgramCache]: Analyzing trace with hash 894475709, now seen corresponding path program 1 times [2023-08-25 00:22:52,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 00:22:52,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804915387] [2023-08-25 00:22:52,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 00:22:52,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 00:22:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 00:22:52,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 00:22:52,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 00:22:52,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804915387] [2023-08-25 00:22:52,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804915387] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 00:22:52,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 00:22:52,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 00:22:52,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918584208] [2023-08-25 00:22:52,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 00:22:52,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 00:22:52,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 00:22:52,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 00:22:52,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 00:22:52,995 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 227 [2023-08-25 00:22:52,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 17 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 00:22:52,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 00:22:52,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 227 [2023-08-25 00:22:52,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 00:22:53,028 INFO L124 PetriNetUnfolderBase]: 57/112 cut-off events. [2023-08-25 00:22:53,029 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2023-08-25 00:22:53,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 112 events. 57/112 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 247 event pairs, 33 based on Foata normal form. 12/124 useless extension candidates. Maximal degree in co-relation 264. Up to 72 conditions per place. [2023-08-25 00:22:53,029 INFO L140 encePairwiseOnDemand]: 224/227 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2023-08-25 00:22:53,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 19 transitions, 94 flow [2023-08-25 00:22:53,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 00:22:53,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 00:22:53,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 325 transitions. [2023-08-25 00:22:53,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3579295154185022 [2023-08-25 00:22:53,031 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 325 transitions. [2023-08-25 00:22:53,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 325 transitions. [2023-08-25 00:22:53,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 00:22:53,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 325 transitions. [2023-08-25 00:22:53,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 00:22:53,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 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) [2023-08-25 00:22:53,035 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 227.0) internal successors, (1135), 5 states have internal predecessors, (1135), 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) [2023-08-25 00:22:53,035 INFO L175 Difference]: Start difference. First operand has 31 places, 17 transitions, 58 flow. Second operand 4 states and 325 transitions. [2023-08-25 00:22:53,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 19 transitions, 94 flow [2023-08-25 00:22:53,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 19 transitions, 84 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 00:22:53,036 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-08-25 00:22:53,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2023-08-25 00:22:53,037 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -23 predicate places. [2023-08-25 00:22:53,037 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-08-25 00:22:53,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 00:22:53,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (41 of 42 remaining) [2023-08-25 00:22:53,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2023-08-25 00:22:53,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2023-08-25 00:22:53,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2023-08-25 00:22:53,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2023-08-25 00:22:53,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2023-08-25 00:22:53,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (35 of 42 remaining) [2023-08-25 00:22:53,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2023-08-25 00:22:53,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2023-08-25 00:22:53,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2023-08-25 00:22:53,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2023-08-25 00:22:53,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2023-08-25 00:22:53,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2023-08-25 00:22:53,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2023-08-25 00:22:53,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2023-08-25 00:22:53,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2023-08-25 00:22:53,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2023-08-25 00:22:53,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2023-08-25 00:22:53,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2023-08-25 00:22:53,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2023-08-25 00:22:53,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2023-08-25 00:22:53,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2023-08-25 00:22:53,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2023-08-25 00:22:53,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (18 of 42 remaining) [2023-08-25 00:22:53,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 42 remaining) [2023-08-25 00:22:53,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 42 remaining) [2023-08-25 00:22:53,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 42 remaining) [2023-08-25 00:22:53,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2023-08-25 00:22:53,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2023-08-25 00:22:53,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (12 of 42 remaining) [2023-08-25 00:22:53,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2023-08-25 00:22:53,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err4ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2023-08-25 00:22:53,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2023-08-25 00:22:53,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2023-08-25 00:22:53,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2023-08-25 00:22:53,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2023-08-25 00:22:53,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2023-08-25 00:22:53,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2023-08-25 00:22:53,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2023-08-25 00:22:53,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err2ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2023-08-25 00:22:53,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err3ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2023-08-25 00:22:53,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err4ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2023-08-25 00:22:53,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 00:22:53,046 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-25 00:22:53,051 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 00:22:53,051 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 00:22:53,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 12:22:53 BasicIcfg [2023-08-25 00:22:53,054 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 00:22:53,054 INFO L158 Benchmark]: Toolchain (without parser) took 6405.90ms. Allocated memory was 404.8MB in the beginning and 486.5MB in the end (delta: 81.8MB). Free memory was 379.1MB in the beginning and 204.4MB in the end (delta: 174.7MB). Peak memory consumption was 258.4MB. Max. memory is 16.0GB. [2023-08-25 00:22:53,055 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 404.8MB. Free memory was 382.3MB in the beginning and 382.3MB in the end (delta: 74.2kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 00:22:53,055 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.48ms. Allocated memory is still 404.8MB. Free memory was 379.1MB in the beginning and 358.3MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 00:22:53,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.12ms. Allocated memory is still 404.8MB. Free memory was 358.3MB in the beginning and 356.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 00:22:53,056 INFO L158 Benchmark]: Boogie Preprocessor took 35.20ms. Allocated memory is still 404.8MB. Free memory was 356.1MB in the beginning and 354.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 00:22:53,056 INFO L158 Benchmark]: RCFGBuilder took 562.30ms. Allocated memory is still 404.8MB. Free memory was 354.4MB in the beginning and 376.6MB in the end (delta: -22.2MB). Peak memory consumption was 28.5MB. Max. memory is 16.0GB. [2023-08-25 00:22:53,056 INFO L158 Benchmark]: TraceAbstraction took 5298.14ms. Allocated memory was 404.8MB in the beginning and 486.5MB in the end (delta: 81.8MB). Free memory was 375.6MB in the beginning and 204.4MB in the end (delta: 171.2MB). Peak memory consumption was 252.9MB. Max. memory is 16.0GB. [2023-08-25 00:22:53,058 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 404.8MB. Free memory was 382.3MB in the beginning and 382.3MB in the end (delta: 74.2kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 441.48ms. Allocated memory is still 404.8MB. Free memory was 379.1MB in the beginning and 358.3MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 62.12ms. Allocated memory is still 404.8MB. Free memory was 358.3MB in the beginning and 356.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.20ms. Allocated memory is still 404.8MB. Free memory was 356.1MB in the beginning and 354.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 562.30ms. Allocated memory is still 404.8MB. Free memory was 354.4MB in the beginning and 376.6MB in the end (delta: -22.2MB). Peak memory consumption was 28.5MB. Max. memory is 16.0GB. * TraceAbstraction took 5298.14ms. Allocated memory was 404.8MB in the beginning and 486.5MB in the end (delta: 81.8MB). Free memory was 375.6MB in the beginning and 204.4MB in the end (delta: 171.2MB). Peak memory consumption was 252.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 121 PlacesBefore, 51 PlacesAfterwards, 114 TransitionsBefore, 42 TransitionsAfterwards, 4092 CoEnabledTransitionPairs, 7 FixpointIterations, 21 TrivialSequentialCompositions, 74 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 110 TotalNumberOfCompositions, 14377 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8452, independent: 8181, independent conditional: 0, independent unconditional: 8181, dependent: 271, dependent conditional: 0, dependent unconditional: 271, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2279, independent: 2219, independent conditional: 0, independent unconditional: 2219, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8452, independent: 5962, independent conditional: 0, independent unconditional: 5962, dependent: 211, dependent conditional: 0, dependent unconditional: 211, unknown: 2279, unknown conditional: 0, unknown unconditional: 2279] , Statistics on independence cache: Total cache size (in pairs): 277, Positive cache size: 257, Positive conditional cache size: 0, Positive unconditional cache size: 257, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 745]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 757]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 757]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 760]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 765]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 765]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 787]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 787]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 789]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 795]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 17]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 154 locations, 42 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 173 IncrementalHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 173 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 0.3s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 00:22:53,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...