/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.order.of.the.error.locations.to.be.checked TOGETHER -tc /storage/repos/CAV22/benchmarks/AutomizerCInline.xml -i /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread_reorder_2_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 15:54:40,253 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 15:54:40,290 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 15:54:40,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 15:54:40,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 15:54:40,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 15:54:40,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 15:54:40,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 15:54:40,307 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 15:54:40,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 15:54:40,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 15:54:40,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 15:54:40,311 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 15:54:40,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 15:54:40,312 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 15:54:40,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 15:54:40,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 15:54:40,313 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 15:54:40,313 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 15:54:40,313 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 15:54:40,313 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 15:54:40,314 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 15:54:40,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 15:54:40,314 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 15:54:40,314 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 15:54:40,315 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 15:54:40,315 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 15:54:40,316 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 15:54:40,316 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 15:54:40,316 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 15:54:40,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 15:54:40,317 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 15:54:40,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 15:54:40,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 15:54:40,317 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 15:54:40,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 15:54:40,318 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 15:54:40,318 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 15:54:40,318 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 15:54:40,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 15:54:40,318 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 15:54:40,318 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 15:54:40,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 15:54:40,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 15:54:40,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 15:54:40,485 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 15:54:40,486 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 15:54:40,486 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread_reorder_2_bound2.i [2023-08-03 15:54:41,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 15:54:41,786 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 15:54:41,787 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread_reorder_2_bound2.i [2023-08-03 15:54:41,799 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f03f68e16/df3401249135494eb0d033acfc0c34e2/FLAGfe3bc8a80 [2023-08-03 15:54:41,808 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f03f68e16/df3401249135494eb0d033acfc0c34e2 [2023-08-03 15:54:41,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 15:54:41,810 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 15:54:41,811 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 15:54:41,811 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 15:54:41,813 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 15:54:41,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 03:54:41" (1/1) ... [2023-08-03 15:54:41,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36bb4f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:54:41, skipping insertion in model container [2023-08-03 15:54:41,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 03:54:41" (1/1) ... [2023-08-03 15:54:41,853 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 15:54:42,205 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread_reorder_2_bound2.i[59849,59862] [2023-08-03 15:54:42,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 15:54:42,215 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 15:54:42,237 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [133] [2023-08-03 15:54:42,245 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [510] [2023-08-03 15:54:42,245 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [510] [2023-08-03 15:54:42,264 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread_reorder_2_bound2.i[59849,59862] [2023-08-03 15:54:42,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 15:54:42,324 WARN L667 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 15:54:42,329 INFO L206 MainTranslator]: Completed translation [2023-08-03 15:54:42,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:54:42 WrapperNode [2023-08-03 15:54:42,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 15:54:42,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 15:54:42,333 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 15:54:42,333 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 15:54:42,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:54:42" (1/1) ... [2023-08-03 15:54:42,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:54:42" (1/1) ... [2023-08-03 15:54:42,380 INFO L138 Inliner]: procedures = 372, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 166 [2023-08-03 15:54:42,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 15:54:42,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 15:54:42,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 15:54:42,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 15:54:42,389 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:54:42" (1/1) ... [2023-08-03 15:54:42,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:54:42" (1/1) ... [2023-08-03 15:54:42,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:54:42" (1/1) ... [2023-08-03 15:54:42,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:54:42" (1/1) ... [2023-08-03 15:54:42,398 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:54:42" (1/1) ... [2023-08-03 15:54:42,401 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:54:42" (1/1) ... [2023-08-03 15:54:42,402 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:54:42" (1/1) ... [2023-08-03 15:54:42,403 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:54:42" (1/1) ... [2023-08-03 15:54:42,405 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 15:54:42,406 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 15:54:42,406 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 15:54:42,406 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 15:54:42,407 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:54:42" (1/1) ... [2023-08-03 15:54:42,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 15:54:42,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 15:54:42,431 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) [2023-08-03 15:54:42,440 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 [2023-08-03 15:54:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-08-03 15:54:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 15:54:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-03 15:54:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 15:54:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-03 15:54:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2023-08-03 15:54:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2023-08-03 15:54:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 15:54:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 15:54:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2023-08-03 15:54:42,465 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2023-08-03 15:54:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 15:54:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 15:54:42,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 15:54:42,466 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-03 15:54:42,591 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 15:54:42,592 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 15:54:42,795 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 15:54:42,803 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 15:54:42,804 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-03 15:54:42,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 03:54:42 BoogieIcfgContainer [2023-08-03 15:54:42,806 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 15:54:42,808 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 15:54:42,808 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 15:54:42,810 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 15:54:42,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 03:54:41" (1/3) ... [2023-08-03 15:54:42,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9ea8b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 03:54:42, skipping insertion in model container [2023-08-03 15:54:42,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 03:54:42" (2/3) ... [2023-08-03 15:54:42,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9ea8b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 03:54:42, skipping insertion in model container [2023-08-03 15:54:42,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 03:54:42" (3/3) ... [2023-08-03 15:54:42,811 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread_reorder_2_bound2.i [2023-08-03 15:54:42,817 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 15:54:42,825 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 15:54:42,826 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-03 15:54:42,826 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 15:54:42,886 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-03 15:54:42,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 188 transitions, 398 flow [2023-08-03 15:54:42,975 INFO L124 PetriNetUnfolderBase]: 37/373 cut-off events. [2023-08-03 15:54:42,976 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-03 15:54:42,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 373 events. 37/373 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1301 event pairs, 0 based on Foata normal form. 0/328 useless extension candidates. Maximal degree in co-relation 202. Up to 8 conditions per place. [2023-08-03 15:54:42,984 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 188 transitions, 398 flow [2023-08-03 15:54:42,987 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 186 transitions, 388 flow [2023-08-03 15:54:42,989 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 15:54:42,995 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 176 places, 186 transitions, 388 flow [2023-08-03 15:54:42,996 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 176 places, 186 transitions, 388 flow [2023-08-03 15:54:42,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 186 transitions, 388 flow [2023-08-03 15:54:43,032 INFO L124 PetriNetUnfolderBase]: 31/345 cut-off events. [2023-08-03 15:54:43,032 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-03 15:54:43,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 345 events. 31/345 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1133 event pairs, 0 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 206. Up to 8 conditions per place. [2023-08-03 15:54:43,035 INFO L119 LiptonReduction]: Number of co-enabled transitions 2446 [2023-08-03 15:54:52,637 INFO L134 LiptonReduction]: Checked pairs total: 3041 [2023-08-03 15:54:52,638 INFO L136 LiptonReduction]: Total number of compositions: 207 [2023-08-03 15:54:52,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 15:54:52,652 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=true, 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;@de00916, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 15:54:52,652 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-03 15:54:52,655 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 15:54:52,655 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-08-03 15:54:52,655 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 15:54:52,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 15:54:52,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-03 15:54:52,656 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 15:54:52,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 15:54:52,659 INFO L85 PathProgramCache]: Analyzing trace with hash 664776949, now seen corresponding path program 1 times [2023-08-03 15:54:52,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 15:54:52,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444991297] [2023-08-03 15:54:52,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 15:54:52,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 15:54:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 15:54:52,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 15:54:52,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 15:54:52,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444991297] [2023-08-03 15:54:52,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444991297] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 15:54:52,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 15:54:52,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 15:54:52,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89686204] [2023-08-03 15:54:52,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 15:54:52,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 15:54:52,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 15:54:52,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 15:54:52,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 15:54:52,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 395 [2023-08-03 15:54:52,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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) [2023-08-03 15:54:52,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 15:54:52,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 395 [2023-08-03 15:54:52,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 15:54:53,061 INFO L124 PetriNetUnfolderBase]: 118/270 cut-off events. [2023-08-03 15:54:53,062 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-08-03 15:54:53,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 270 events. 118/270 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1104 event pairs, 29 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 382. Up to 201 conditions per place. [2023-08-03 15:54:53,067 INFO L140 encePairwiseOnDemand]: 392/395 looper letters, 31 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2023-08-03 15:54:53,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 35 transitions, 155 flow [2023-08-03 15:54:53,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 15:54:53,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 15:54:53,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 535 transitions. [2023-08-03 15:54:53,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45147679324894513 [2023-08-03 15:54:53,084 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 535 transitions. [2023-08-03 15:54:53,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 535 transitions. [2023-08-03 15:54:53,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 15:54:53,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 535 transitions. [2023-08-03 15:54:53,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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) [2023-08-03 15:54:53,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 395.0) internal successors, (1580), 4 states have internal predecessors, (1580), 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) [2023-08-03 15:54:53,098 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 395.0) internal successors, (1580), 4 states have internal predecessors, (1580), 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) [2023-08-03 15:54:53,099 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 62 flow. Second operand 3 states and 535 transitions. [2023-08-03 15:54:53,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 35 transitions, 155 flow [2023-08-03 15:54:53,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 35 transitions, 155 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 15:54:53,103 INFO L231 Difference]: Finished difference. Result has 29 places, 23 transitions, 70 flow [2023-08-03 15:54:53,104 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=395, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=29, PETRI_TRANSITIONS=23} [2023-08-03 15:54:53,109 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2023-08-03 15:54:53,109 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 23 transitions, 70 flow [2023-08-03 15:54:53,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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) [2023-08-03 15:54:53,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 15:54:53,110 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-03 15:54:53,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 15:54:53,110 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 15:54:53,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 15:54:53,112 INFO L85 PathProgramCache]: Analyzing trace with hash -855000428, now seen corresponding path program 1 times [2023-08-03 15:54:53,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 15:54:53,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398023158] [2023-08-03 15:54:53,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 15:54:53,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 15:54:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 15:54:53,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 15:54:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 15:54:53,230 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 15:54:53,230 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 15:54:53,231 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-08-03 15:54:53,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-08-03 15:54:53,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-03 15:54:53,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-08-03 15:54:53,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-03 15:54:53,233 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-03 15:54:53,238 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-03 15:54:53,238 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-03 15:54:53,261 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-08-03 15:54:53,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 197 places, 210 transitions, 468 flow [2023-08-03 15:54:53,342 INFO L124 PetriNetUnfolderBase]: 149/1166 cut-off events. [2023-08-03 15:54:53,342 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-03 15:54:53,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1263 conditions, 1166 events. 149/1166 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6340 event pairs, 2 based on Foata normal form. 0/1024 useless extension candidates. Maximal degree in co-relation 684. Up to 32 conditions per place. [2023-08-03 15:54:53,346 INFO L82 GeneralOperation]: Start removeDead. Operand has 197 places, 210 transitions, 468 flow [2023-08-03 15:54:53,348 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 210 transitions, 468 flow [2023-08-03 15:54:53,348 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 15:54:53,348 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 197 places, 210 transitions, 468 flow [2023-08-03 15:54:53,349 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 197 places, 210 transitions, 468 flow [2023-08-03 15:54:53,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 197 places, 210 transitions, 468 flow [2023-08-03 15:54:53,424 INFO L124 PetriNetUnfolderBase]: 149/1166 cut-off events. [2023-08-03 15:54:53,424 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-08-03 15:54:53,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1263 conditions, 1166 events. 149/1166 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6340 event pairs, 2 based on Foata normal form. 0/1024 useless extension candidates. Maximal degree in co-relation 684. Up to 32 conditions per place. [2023-08-03 15:54:53,437 INFO L119 LiptonReduction]: Number of co-enabled transitions 6232 [2023-08-03 15:55:02,342 INFO L134 LiptonReduction]: Checked pairs total: 11651 [2023-08-03 15:55:02,342 INFO L136 LiptonReduction]: Total number of compositions: 216 [2023-08-03 15:55:02,344 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 15:55:02,344 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=true, 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;@de00916, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 15:55:02,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-03 15:55:02,346 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 15:55:02,347 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-08-03 15:55:02,347 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 15:55:02,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 15:55:02,347 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-03 15:55:02,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 15:55:02,347 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 15:55:02,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1090363876, now seen corresponding path program 1 times [2023-08-03 15:55:02,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 15:55:02,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950841385] [2023-08-03 15:55:02,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 15:55:02,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 15:55:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 15:55:02,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 15:55:02,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 15:55:02,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950841385] [2023-08-03 15:55:02,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950841385] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 15:55:02,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 15:55:02,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 15:55:02,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523578381] [2023-08-03 15:55:02,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 15:55:02,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 15:55:02,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 15:55:02,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 15:55:02,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 15:55:02,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 426 [2023-08-03 15:55:02,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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) [2023-08-03 15:55:02,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 15:55:02,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 426 [2023-08-03 15:55:02,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 15:55:02,894 INFO L124 PetriNetUnfolderBase]: 4447/6838 cut-off events. [2023-08-03 15:55:02,895 INFO L125 PetriNetUnfolderBase]: For 1290/1290 co-relation queries the response was YES. [2023-08-03 15:55:02,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14161 conditions, 6838 events. 4447/6838 cut-off events. For 1290/1290 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 36975 event pairs, 1433 based on Foata normal form. 0/5176 useless extension candidates. Maximal degree in co-relation 10038. Up to 6226 conditions per place. [2023-08-03 15:55:02,925 INFO L140 encePairwiseOnDemand]: 421/426 looper letters, 53 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2023-08-03 15:55:02,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 62 transitions, 309 flow [2023-08-03 15:55:02,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 15:55:02,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 15:55:02,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 592 transitions. [2023-08-03 15:55:02,927 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46322378716744916 [2023-08-03 15:55:02,927 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 592 transitions. [2023-08-03 15:55:02,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 592 transitions. [2023-08-03 15:55:02,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 15:55:02,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 592 transitions. [2023-08-03 15:55:02,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 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) [2023-08-03 15:55:02,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 426.0) internal successors, (1704), 4 states have internal predecessors, (1704), 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) [2023-08-03 15:55:02,932 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 426.0) internal successors, (1704), 4 states have internal predecessors, (1704), 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) [2023-08-03 15:55:02,932 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 126 flow. Second operand 3 states and 592 transitions. [2023-08-03 15:55:02,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 62 transitions, 309 flow [2023-08-03 15:55:02,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 62 transitions, 309 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 15:55:02,941 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 147 flow [2023-08-03 15:55:02,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=426, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2023-08-03 15:55:02,942 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2023-08-03 15:55:02,942 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 147 flow [2023-08-03 15:55:02,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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) [2023-08-03 15:55:02,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 15:55:02,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 15:55:02,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-03 15:55:02,943 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 15:55:02,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 15:55:02,943 INFO L85 PathProgramCache]: Analyzing trace with hash -502834632, now seen corresponding path program 1 times [2023-08-03 15:55:02,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 15:55:02,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304108076] [2023-08-03 15:55:02,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 15:55:02,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 15:55:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 15:55:03,000 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 15:55:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 15:55:03,031 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 15:55:03,032 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 15:55:03,032 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-08-03 15:55:03,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-08-03 15:55:03,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-03 15:55:03,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-08-03 15:55:03,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-08-03 15:55:03,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-03 15:55:03,033 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-03 15:55:03,035 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-03 15:55:03,035 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 15:55:03,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 03:55:03 BasicIcfg [2023-08-03 15:55:03,088 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 15:55:03,089 INFO L158 Benchmark]: Toolchain (without parser) took 21277.53ms. Allocated memory was 515.9MB in the beginning and 799.0MB in the end (delta: 283.1MB). Free memory was 475.7MB in the beginning and 375.5MB in the end (delta: 100.2MB). Peak memory consumption was 384.7MB. Max. memory is 16.0GB. [2023-08-03 15:55:03,089 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 364.9MB. Free memory is still 317.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 15:55:03,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.60ms. Allocated memory is still 515.9MB. Free memory was 475.3MB in the beginning and 435.8MB in the end (delta: 39.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. [2023-08-03 15:55:03,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.57ms. Allocated memory is still 515.9MB. Free memory was 435.8MB in the beginning and 433.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 15:55:03,091 INFO L158 Benchmark]: Boogie Preprocessor took 24.78ms. Allocated memory is still 515.9MB. Free memory was 433.0MB in the beginning and 431.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 15:55:03,091 INFO L158 Benchmark]: RCFGBuilder took 400.61ms. Allocated memory is still 515.9MB. Free memory was 431.0MB in the beginning and 468.8MB in the end (delta: -37.9MB). Peak memory consumption was 13.5MB. Max. memory is 16.0GB. [2023-08-03 15:55:03,091 INFO L158 Benchmark]: TraceAbstraction took 20279.98ms. Allocated memory was 515.9MB in the beginning and 799.0MB in the end (delta: 283.1MB). Free memory was 467.9MB in the beginning and 375.5MB in the end (delta: 92.4MB). Peak memory consumption was 375.4MB. Max. memory is 16.0GB. [2023-08-03 15:55:03,093 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 364.9MB. Free memory is still 317.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 520.60ms. Allocated memory is still 515.9MB. Free memory was 475.3MB in the beginning and 435.8MB in the end (delta: 39.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.57ms. Allocated memory is still 515.9MB. Free memory was 435.8MB in the beginning and 433.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 24.78ms. Allocated memory is still 515.9MB. Free memory was 433.0MB in the beginning and 431.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 400.61ms. Allocated memory is still 515.9MB. Free memory was 431.0MB in the beginning and 468.8MB in the end (delta: -37.9MB). Peak memory consumption was 13.5MB. Max. memory is 16.0GB. * TraceAbstraction took 20279.98ms. Allocated memory was 515.9MB in the beginning and 799.0MB in the end (delta: 283.1MB). Free memory was 467.9MB in the beginning and 375.5MB in the end (delta: 92.4MB). Peak memory consumption was 375.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 133]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [133] - GenericResultAtLocation [Line: 510]: Unsoundness Warning unspecified type, defaulting to int C: short [510] - GenericResultAtLocation [Line: 510]: Unsoundness Warning unspecified type, defaulting to int C: short [510] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.6s, 176 PlacesBefore, 26 PlacesAfterwards, 186 TransitionsBefore, 23 TransitionsAfterwards, 2446 CoEnabledTransitionPairs, 9 FixpointIterations, 72 TrivialSequentialCompositions, 88 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 24 ConcurrentYvCompositions, 13 ChoiceCompositions, 207 TotalNumberOfCompositions, 3041 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2308, independent: 2270, independent conditional: 0, independent unconditional: 2270, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1367, independent: 1357, independent conditional: 0, independent unconditional: 1357, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2308, independent: 913, independent conditional: 0, independent unconditional: 913, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 1367, unknown conditional: 0, unknown unconditional: 1367] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.0s, 197 PlacesBefore, 40 PlacesAfterwards, 210 TransitionsBefore, 39 TransitionsAfterwards, 6232 CoEnabledTransitionPairs, 8 FixpointIterations, 70 TrivialSequentialCompositions, 92 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 28 ConcurrentYvCompositions, 14 ChoiceCompositions, 216 TotalNumberOfCompositions, 11651 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8884, independent: 8794, independent conditional: 0, independent unconditional: 8794, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3764, independent: 3741, independent conditional: 0, independent unconditional: 3741, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8884, independent: 5053, independent conditional: 0, independent unconditional: 5053, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 3764, unknown conditional: 0, unknown unconditional: 3764] , Statistics on independence cache: Total cache size (in pairs): 141, Positive cache size: 134, Positive conditional cache size: 0, Positive unconditional cache size: 134, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 1295]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of sscanf at line 1251. Possible FailurePath: [L1236] 0 static int iSet = 2; [L1237] 0 static int iCheck = 2; [L1238] 0 static int a = 0; [L1239] 0 static int b = 0; [L1245] 0 int i, err; [L1246] COND TRUE 0 argc != 1 [L1247] COND FALSE 0 !(argc != 3) [L1251] 0 argv[1] [L1252] 0 argv[2] [L1255] EXPR 0 \read(iSet) [L1255] 0 iSet > 2 || iCheck > 2 [L1255] EXPR 0 \read(iCheck) [L1255] 0 iSet > 2 || iCheck > 2 [L1255] COND FALSE 0 !(iSet > 2 || iCheck > 2) [L1258] EXPR 0 \read(iSet) [L1258] 0 pthread_t setPool[iSet]; [L1259] EXPR 0 \read(iCheck) [L1259] 0 pthread_t checkPool[iCheck]; [L1260] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=2, \read(iSet)=1, a=0, argc=3, argv={59:58}, argv={59:58}, b=0, checkPool={11:0}, i=0, iCheck={10:0}, iSet={9:0}, setPool={13:0}] [L1260] EXPR 0 \read(iSet) [L1260] COND TRUE 0 i < iSet [L1261] EXPR, FCALL, FORK 0 pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=2, \read(iSet)=1, a=0, argc=3, argv={59:58}, argv={59:58}, b=0, checkPool={11:0}, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=2, setPool={13:0}] [L1261] EXPR 0 err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=2, \read(iSet)=1, a=0, argc=3, argv={59:58}, argv={59:58}, b=0, checkPool={11:0}, err=0, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=0, pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0))=2, setPool={13:0}] [L1261] COND FALSE 0 !(0 != (err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)))) [L1260] 0 i++ VAL [\old(argc)=3, \read(iCheck)=2, \read(iSet)=1, a=0, argc=3, argv={59:58}, argv={59:58}, b=0, checkPool={11:0}, err=0, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=51, i=1, iCheck={10:0}, iSet={9:0}, param={0:0}, setPool={13:0}] [L1260] EXPR 0 \read(iSet) [L1260] COND FALSE 0 !(i < iSet) [L1266] 0 i = 0 VAL [\old(argc)=3, \read(iCheck)=2, \read(iSet)=1, a=0, argc=3, argv={59:58}, argv={59:58}, b=0, checkPool={11:0}, err=0, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=51, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, setPool={13:0}] [L1266] EXPR 0 \read(iCheck) [L1266] COND TRUE 0 i < iCheck [L1267-L1268] FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, \read(iCheck)=2, \read(iSet)=1, a=0, argc=3, argv={59:58}, argv={59:58}, b=0, checkPool={11:0}, err=0, fprintf(stderr, "Error [%d] found creating set thread.\n", err)=51, i=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0))=3, setPool={13:0}] [L1288] 1 a = 1 VAL [a=1, b=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, param={0:0}] [L1293] COND TRUE 2 ! ((a == 0 && b == 0) || (a == 1 && b == -1)) [L1295] 2 reach_error() VAL [a=1, b=0, iCheck={10:0}, iSet={9:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}] - UnprovableResult [Line: 1267]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1261]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 189 locations, 4 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: 10.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=1, InterpolantAutomatonStates: 3, 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, 0.2s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 206 locations, 5 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: 9.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 80 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 12 mSDtfsCounter, 80 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=1, InterpolantAutomatonStates: 3, 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, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-08-03 15:55:03,126 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...