/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_28-list2alloc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 07:33:46,463 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 07:33:46,544 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 [2023-08-26 07:33:46,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 07:33:46,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 07:33:46,581 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 07:33:46,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 07:33:46,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 07:33:46,583 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 07:33:46,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 07:33:46,586 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 07:33:46,587 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 07:33:46,587 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 07:33:46,588 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 07:33:46,588 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 07:33:46,589 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 07:33:46,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 07:33:46,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 07:33:46,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 07:33:46,589 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 07:33:46,590 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 07:33:46,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 07:33:46,590 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 07:33:46,591 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 07:33:46,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 07:33:46,591 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 07:33:46,592 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 07:33:46,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:33:46,592 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 07:33:46,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 07:33:46,593 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 07:33:46,594 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 07:33:46,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 07:33:46,594 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 07:33:46,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 07:33:46,595 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 07:33:46,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 07:33:46,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 07:33:46,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 07:33:46,954 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 07:33:46,954 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 07:33:46,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_28-list2alloc.i [2023-08-26 07:33:48,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 07:33:48,527 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 07:33:48,528 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_28-list2alloc.i [2023-08-26 07:33:48,543 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f1a44955/af2663c661564ec9bab95510ba99edb8/FLAGbb8c30d8c [2023-08-26 07:33:48,564 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f1a44955/af2663c661564ec9bab95510ba99edb8 [2023-08-26 07:33:48,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 07:33:48,567 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 07:33:48,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 07:33:48,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 07:33:48,574 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 07:33:48,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:33:48" (1/1) ... [2023-08-26 07:33:48,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20fe3114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:33:48, skipping insertion in model container [2023-08-26 07:33:48,576 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:33:48" (1/1) ... [2023-08-26 07:33:48,637 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 07:33:49,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:33:49,232 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 07:33:49,258 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 07:33:49,259 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 07:33:49,274 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044] [2023-08-26 07:33:49,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:33:49,367 INFO L206 MainTranslator]: Completed translation [2023-08-26 07:33:49,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:33:49 WrapperNode [2023-08-26 07:33:49,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 07:33:49,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 07:33:49,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 07:33:49,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 07:33:49,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:33:49" (1/1) ... [2023-08-26 07:33:49,397 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:33:49" (1/1) ... [2023-08-26 07:33:49,423 INFO L138 Inliner]: procedures = 368, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2023-08-26 07:33:49,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 07:33:49,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 07:33:49,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 07:33:49,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 07:33:49,432 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:33:49" (1/1) ... [2023-08-26 07:33:49,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:33:49" (1/1) ... [2023-08-26 07:33:49,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:33:49" (1/1) ... [2023-08-26 07:33:49,440 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:33:49" (1/1) ... [2023-08-26 07:33:49,451 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:33:49" (1/1) ... [2023-08-26 07:33:49,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:33:49" (1/1) ... [2023-08-26 07:33:49,455 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:33:49" (1/1) ... [2023-08-26 07:33:49,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:33:49" (1/1) ... [2023-08-26 07:33:49,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 07:33:49,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 07:33:49,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 07:33:49,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 07:33:49,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:33:49" (1/1) ... [2023-08-26 07:33:49,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:33:49,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:33:49,491 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) [2023-08-26 07:33:49,523 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 [2023-08-26 07:33:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 07:33:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 07:33:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 07:33:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 07:33:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 07:33:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 07:33:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 07:33:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-26 07:33:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 07:33:49,541 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 07:33:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 07:33:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 07:33:49,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 07:33:49,543 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 07:33:49,705 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 07:33:49,706 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 07:33:49,931 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 07:33:49,939 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 07:33:49,939 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 07:33:49,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:33:49 BoogieIcfgContainer [2023-08-26 07:33:49,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 07:33:49,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 07:33:49,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 07:33:49,945 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 07:33:49,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 07:33:48" (1/3) ... [2023-08-26 07:33:49,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e128c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:33:49, skipping insertion in model container [2023-08-26 07:33:49,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:33:49" (2/3) ... [2023-08-26 07:33:49,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e128c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:33:49, skipping insertion in model container [2023-08-26 07:33:49,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:33:49" (3/3) ... [2023-08-26 07:33:49,947 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_28-list2alloc.i [2023-08-26 07:33:49,962 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 07:33:49,962 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-26 07:33:49,962 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 07:33:50,025 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 07:33:50,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 172 transitions, 349 flow [2023-08-26 07:33:50,108 INFO L124 PetriNetUnfolderBase]: 0/171 cut-off events. [2023-08-26 07:33:50,108 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:33:50,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 171 events. 0/171 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 07:33:50,111 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 172 transitions, 349 flow [2023-08-26 07:33:50,116 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 171 transitions, 345 flow [2023-08-26 07:33:50,118 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 07:33:50,127 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 171 transitions, 345 flow [2023-08-26 07:33:50,129 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 171 transitions, 345 flow [2023-08-26 07:33:50,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 171 transitions, 345 flow [2023-08-26 07:33:50,161 INFO L124 PetriNetUnfolderBase]: 0/171 cut-off events. [2023-08-26 07:33:50,162 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:33:50,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 171 events. 0/171 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 07:33:50,164 INFO L119 LiptonReduction]: Number of co-enabled transitions 2544 [2023-08-26 07:34:08,499 WARN L234 SmtUtils]: Spent 9.64s on a formula simplification. DAG size of input: 145 DAG size of output: 136 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:34:22,460 WARN L234 SmtUtils]: Spent 9.63s on a formula simplification. DAG size of input: 145 DAG size of output: 136 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:34:39,137 WARN L234 SmtUtils]: Spent 9.18s on a formula simplification that was a NOOP. DAG size: 221 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:34:48,494 WARN L234 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 246 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:35:00,243 WARN L234 SmtUtils]: Spent 11.75s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:35:17,219 WARN L234 SmtUtils]: Spent 16.97s on a formula simplification that was a NOOP. DAG size: 246 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:35:27,690 WARN L234 SmtUtils]: Spent 10.47s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:35:27,695 INFO L134 LiptonReduction]: Checked pairs total: 17799 [2023-08-26 07:35:27,695 INFO L136 LiptonReduction]: Total number of compositions: 140 [2023-08-26 07:35:27,706 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 07:35:27,710 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;@19d57475, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 07:35:27,710 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-08-26 07:35:27,711 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 07:35:27,712 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 07:35:27,712 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:35:27,712 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:35:27,712 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 07:35:27,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:35:27,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:35:27,717 INFO L85 PathProgramCache]: Analyzing trace with hash 567, now seen corresponding path program 1 times [2023-08-26 07:35:27,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:35:27,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311977785] [2023-08-26 07:35:27,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:35:27,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:35:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:35:27,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:35:27,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:35:27,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311977785] [2023-08-26 07:35:27,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311977785] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:35:27,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:35:27,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 07:35:27,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042629422] [2023-08-26 07:35:27,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:35:27,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 07:35:27,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:35:27,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 07:35:27,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 07:35:27,838 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 312 [2023-08-26 07:35:27,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 115 flow. Second operand has 2 states, 2 states have (on average 171.5) internal successors, (343), 2 states have internal predecessors, (343), 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) [2023-08-26 07:35:27,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:35:27,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 312 [2023-08-26 07:35:27,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:35:27,962 INFO L124 PetriNetUnfolderBase]: 60/273 cut-off events. [2023-08-26 07:35:27,962 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:35:27,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 273 events. 60/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1125 event pairs, 60 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 408. Up to 140 conditions per place. [2023-08-26 07:35:27,968 INFO L140 encePairwiseOnDemand]: 305/312 looper letters, 19 selfloop transitions, 0 changer transitions 0/49 dead transitions. [2023-08-26 07:35:27,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 49 transitions, 139 flow [2023-08-26 07:35:27,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 07:35:27,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 07:35:27,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 368 transitions. [2023-08-26 07:35:27,988 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5897435897435898 [2023-08-26 07:35:27,989 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 368 transitions. [2023-08-26 07:35:27,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 368 transitions. [2023-08-26 07:35:27,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:35:27,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 368 transitions. [2023-08-26 07:35:27,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 184.0) internal successors, (368), 2 states have internal predecessors, (368), 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) [2023-08-26 07:35:28,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 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) [2023-08-26 07:35:28,004 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 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) [2023-08-26 07:35:28,005 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 115 flow. Second operand 2 states and 368 transitions. [2023-08-26 07:35:28,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 49 transitions, 139 flow [2023-08-26 07:35:28,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 49 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:35:28,009 INFO L231 Difference]: Finished difference. Result has 53 places, 49 transitions, 100 flow [2023-08-26 07:35:28,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=100, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2023-08-26 07:35:28,016 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -7 predicate places. [2023-08-26 07:35:28,016 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 100 flow [2023-08-26 07:35:28,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 171.5) internal successors, (343), 2 states have internal predecessors, (343), 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) [2023-08-26 07:35:28,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:35:28,017 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 07:35:28,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 07:35:28,017 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:35:28,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:35:28,019 INFO L85 PathProgramCache]: Analyzing trace with hash 539660998, now seen corresponding path program 1 times [2023-08-26 07:35:28,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:35:28,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458726784] [2023-08-26 07:35:28,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:35:28,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:35:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:35:28,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:35:28,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:35:28,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458726784] [2023-08-26 07:35:28,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458726784] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:35:28,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:35:28,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:35:28,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671192272] [2023-08-26 07:35:28,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:35:28,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:35:28,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:35:28,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:35:28,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:35:28,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 312 [2023-08-26 07:35:28,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2023-08-26 07:35:28,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:35:28,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 312 [2023-08-26 07:35:28,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:35:28,349 INFO L124 PetriNetUnfolderBase]: 78/319 cut-off events. [2023-08-26 07:35:28,350 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:35:28,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 319 events. 78/319 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1326 event pairs, 56 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 498. Up to 171 conditions per place. [2023-08-26 07:35:28,355 INFO L140 encePairwiseOnDemand]: 308/312 looper letters, 23 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2023-08-26 07:35:28,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 51 transitions, 154 flow [2023-08-26 07:35:28,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:35:28,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:35:28,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2023-08-26 07:35:28,358 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5480769230769231 [2023-08-26 07:35:28,358 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2023-08-26 07:35:28,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2023-08-26 07:35:28,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:35:28,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2023-08-26 07:35:28,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2023-08-26 07:35:28,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 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) [2023-08-26 07:35:28,364 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 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) [2023-08-26 07:35:28,364 INFO L175 Difference]: Start difference. First operand has 53 places, 49 transitions, 100 flow. Second operand 3 states and 513 transitions. [2023-08-26 07:35:28,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 51 transitions, 154 flow [2023-08-26 07:35:28,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 51 transitions, 154 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:35:28,369 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 110 flow [2023-08-26 07:35:28,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2023-08-26 07:35:28,371 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2023-08-26 07:35:28,371 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 110 flow [2023-08-26 07:35:28,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2023-08-26 07:35:28,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:35:28,375 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:35:28,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 07:35:28,375 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:35:28,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:35:28,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1305759350, now seen corresponding path program 1 times [2023-08-26 07:35:28,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:35:28,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496356525] [2023-08-26 07:35:28,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:35:28,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:35:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:35:28,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:35:28,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:35:28,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496356525] [2023-08-26 07:35:28,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496356525] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:35:28,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:35:28,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:35:28,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163837154] [2023-08-26 07:35:28,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:35:28,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:35:28,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:35:28,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:35:28,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:35:28,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 312 [2023-08-26 07:35:28,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 110 flow. Second operand has 6 states, 6 states have (on average 113.66666666666667) internal successors, (682), 6 states have internal predecessors, (682), 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) [2023-08-26 07:35:28,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:35:28,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 312 [2023-08-26 07:35:28,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:35:29,229 INFO L124 PetriNetUnfolderBase]: 314/697 cut-off events. [2023-08-26 07:35:29,230 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-08-26 07:35:29,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1426 conditions, 697 events. 314/697 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2898 event pairs, 219 based on Foata normal form. 0/622 useless extension candidates. Maximal degree in co-relation 1422. Up to 582 conditions per place. [2023-08-26 07:35:29,233 INFO L140 encePairwiseOnDemand]: 301/312 looper letters, 65 selfloop transitions, 22 changer transitions 0/91 dead transitions. [2023-08-26 07:35:29,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 91 transitions, 376 flow [2023-08-26 07:35:29,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:35:29,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:35:29,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 758 transitions. [2023-08-26 07:35:29,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4049145299145299 [2023-08-26 07:35:29,236 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 758 transitions. [2023-08-26 07:35:29,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 758 transitions. [2023-08-26 07:35:29,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:35:29,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 758 transitions. [2023-08-26 07:35:29,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.33333333333333) internal successors, (758), 6 states have internal predecessors, (758), 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) [2023-08-26 07:35:29,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 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) [2023-08-26 07:35:29,242 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 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) [2023-08-26 07:35:29,242 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 110 flow. Second operand 6 states and 758 transitions. [2023-08-26 07:35:29,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 91 transitions, 376 flow [2023-08-26 07:35:29,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 91 transitions, 376 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:35:29,246 INFO L231 Difference]: Finished difference. Result has 64 places, 70 transitions, 260 flow [2023-08-26 07:35:29,246 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=260, PETRI_PLACES=64, PETRI_TRANSITIONS=70} [2023-08-26 07:35:29,246 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places. [2023-08-26 07:35:29,246 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 70 transitions, 260 flow [2023-08-26 07:35:29,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.66666666666667) internal successors, (682), 6 states have internal predecessors, (682), 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) [2023-08-26 07:35:29,247 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:35:29,247 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:35:29,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 07:35:29,247 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:35:29,248 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:35:29,248 INFO L85 PathProgramCache]: Analyzing trace with hash -163821742, now seen corresponding path program 1 times [2023-08-26 07:35:29,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:35:29,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664068465] [2023-08-26 07:35:29,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:35:29,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:35:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:35:29,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:35:29,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:35:29,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664068465] [2023-08-26 07:35:29,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664068465] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:35:29,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:35:29,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:35:29,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257689094] [2023-08-26 07:35:29,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:35:29,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:35:29,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:35:29,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:35:29,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:35:29,599 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 312 [2023-08-26 07:35:29,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 70 transitions, 260 flow. Second operand has 6 states, 6 states have (on average 112.83333333333333) internal successors, (677), 6 states have internal predecessors, (677), 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) [2023-08-26 07:35:29,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:35:29,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 312 [2023-08-26 07:35:29,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:35:29,993 INFO L124 PetriNetUnfolderBase]: 449/970 cut-off events. [2023-08-26 07:35:29,994 INFO L125 PetriNetUnfolderBase]: For 267/267 co-relation queries the response was YES. [2023-08-26 07:35:29,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2437 conditions, 970 events. 449/970 cut-off events. For 267/267 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4343 event pairs, 161 based on Foata normal form. 0/889 useless extension candidates. Maximal degree in co-relation 2428. Up to 755 conditions per place. [2023-08-26 07:35:29,999 INFO L140 encePairwiseOnDemand]: 290/312 looper letters, 113 selfloop transitions, 80 changer transitions 8/205 dead transitions. [2023-08-26 07:35:30,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 205 transitions, 1046 flow [2023-08-26 07:35:30,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:35:30,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:35:30,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 838 transitions. [2023-08-26 07:35:30,003 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44764957264957267 [2023-08-26 07:35:30,003 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 838 transitions. [2023-08-26 07:35:30,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 838 transitions. [2023-08-26 07:35:30,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:35:30,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 838 transitions. [2023-08-26 07:35:30,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.66666666666666) internal successors, (838), 6 states have internal predecessors, (838), 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) [2023-08-26 07:35:30,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 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) [2023-08-26 07:35:30,010 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 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) [2023-08-26 07:35:30,010 INFO L175 Difference]: Start difference. First operand has 64 places, 70 transitions, 260 flow. Second operand 6 states and 838 transitions. [2023-08-26 07:35:30,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 205 transitions, 1046 flow [2023-08-26 07:35:30,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 205 transitions, 1046 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:35:30,020 INFO L231 Difference]: Finished difference. Result has 73 places, 145 transitions, 788 flow [2023-08-26 07:35:30,020 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=788, PETRI_PLACES=73, PETRI_TRANSITIONS=145} [2023-08-26 07:35:30,022 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 13 predicate places. [2023-08-26 07:35:30,022 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 145 transitions, 788 flow [2023-08-26 07:35:30,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.83333333333333) internal successors, (677), 6 states have internal predecessors, (677), 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) [2023-08-26 07:35:30,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:35:30,023 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:35:30,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 07:35:30,023 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:35:30,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:35:30,023 INFO L85 PathProgramCache]: Analyzing trace with hash 388602242, now seen corresponding path program 1 times [2023-08-26 07:35:30,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:35:30,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111370985] [2023-08-26 07:35:30,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:35:30,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:35:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:35:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:35:30,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:35:30,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111370985] [2023-08-26 07:35:30,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111370985] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:35:30,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:35:30,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:35:30,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970987376] [2023-08-26 07:35:30,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:35:30,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:35:30,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:35:30,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:35:30,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:35:30,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 312 [2023-08-26 07:35:30,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 145 transitions, 788 flow. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 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) [2023-08-26 07:35:30,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:35:30,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 312 [2023-08-26 07:35:30,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:35:30,276 INFO L124 PetriNetUnfolderBase]: 217/610 cut-off events. [2023-08-26 07:35:30,276 INFO L125 PetriNetUnfolderBase]: For 403/427 co-relation queries the response was YES. [2023-08-26 07:35:30,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1750 conditions, 610 events. 217/610 cut-off events. For 403/427 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2914 event pairs, 27 based on Foata normal form. 7/607 useless extension candidates. Maximal degree in co-relation 1736. Up to 206 conditions per place. [2023-08-26 07:35:30,282 INFO L140 encePairwiseOnDemand]: 307/312 looper letters, 34 selfloop transitions, 4 changer transitions 4/156 dead transitions. [2023-08-26 07:35:30,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 156 transitions, 908 flow [2023-08-26 07:35:30,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:35:30,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:35:30,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 508 transitions. [2023-08-26 07:35:30,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5427350427350427 [2023-08-26 07:35:30,284 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 508 transitions. [2023-08-26 07:35:30,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 508 transitions. [2023-08-26 07:35:30,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:35:30,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 508 transitions. [2023-08-26 07:35:30,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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) [2023-08-26 07:35:30,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 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) [2023-08-26 07:35:30,288 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 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) [2023-08-26 07:35:30,288 INFO L175 Difference]: Start difference. First operand has 73 places, 145 transitions, 788 flow. Second operand 3 states and 508 transitions. [2023-08-26 07:35:30,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 156 transitions, 908 flow [2023-08-26 07:35:30,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 156 transitions, 884 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-08-26 07:35:30,298 INFO L231 Difference]: Finished difference. Result has 76 places, 145 transitions, 778 flow [2023-08-26 07:35:30,298 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=778, PETRI_PLACES=76, PETRI_TRANSITIONS=145} [2023-08-26 07:35:30,300 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 16 predicate places. [2023-08-26 07:35:30,300 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 145 transitions, 778 flow [2023-08-26 07:35:30,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 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) [2023-08-26 07:35:30,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:35:30,301 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:35:30,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 07:35:30,305 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:35:30,305 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:35:30,305 INFO L85 PathProgramCache]: Analyzing trace with hash 178969448, now seen corresponding path program 2 times [2023-08-26 07:35:30,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:35:30,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893655592] [2023-08-26 07:35:30,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:35:30,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:35:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 07:35:30,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 07:35:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 07:35:30,435 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 07:35:30,435 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 07:35:30,436 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2023-08-26 07:35:30,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2023-08-26 07:35:30,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2023-08-26 07:35:30,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2023-08-26 07:35:30,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2023-08-26 07:35:30,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2023-08-26 07:35:30,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2023-08-26 07:35:30,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2023-08-26 07:35:30,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2023-08-26 07:35:30,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 21 remaining) [2023-08-26 07:35:30,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2023-08-26 07:35:30,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2023-08-26 07:35:30,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2023-08-26 07:35:30,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2023-08-26 07:35:30,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2023-08-26 07:35:30,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2023-08-26 07:35:30,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2023-08-26 07:35:30,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2023-08-26 07:35:30,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2023-08-26 07:35:30,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2023-08-26 07:35:30,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2023-08-26 07:35:30,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 07:35:30,440 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-08-26 07:35:30,446 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 07:35:30,446 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 07:35:30,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 07:35:30 BasicIcfg [2023-08-26 07:35:30,496 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 07:35:30,498 INFO L158 Benchmark]: Toolchain (without parser) took 101929.52ms. Allocated memory was 362.8MB in the beginning and 455.1MB in the end (delta: 92.3MB). Free memory was 336.8MB in the beginning and 407.4MB in the end (delta: -70.6MB). Peak memory consumption was 24.0MB. Max. memory is 16.0GB. [2023-08-26 07:35:30,499 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 362.8MB. Free memory was 339.2MB in the beginning and 339.1MB in the end (delta: 94.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 07:35:30,499 INFO L158 Benchmark]: CACSL2BoogieTranslator took 799.30ms. Allocated memory is still 362.8MB. Free memory was 336.5MB in the beginning and 298.3MB in the end (delta: 38.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-26 07:35:30,499 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.44ms. Allocated memory is still 362.8MB. Free memory was 298.3MB in the beginning and 295.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 07:35:30,499 INFO L158 Benchmark]: Boogie Preprocessor took 35.24ms. Allocated memory is still 362.8MB. Free memory was 295.2MB in the beginning and 292.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:35:30,500 INFO L158 Benchmark]: RCFGBuilder took 480.96ms. Allocated memory is still 362.8MB. Free memory was 292.7MB in the beginning and 324.7MB in the end (delta: -32.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-26 07:35:30,500 INFO L158 Benchmark]: TraceAbstraction took 100553.99ms. Allocated memory was 362.8MB in the beginning and 455.1MB in the end (delta: 92.3MB). Free memory was 323.8MB in the beginning and 407.4MB in the end (delta: -83.6MB). Peak memory consumption was 9.4MB. Max. memory is 16.0GB. [2023-08-26 07:35:30,503 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 362.8MB. Free memory was 339.2MB in the beginning and 339.1MB in the end (delta: 94.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 799.30ms. Allocated memory is still 362.8MB. Free memory was 336.5MB in the beginning and 298.3MB in the end (delta: 38.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 55.44ms. Allocated memory is still 362.8MB. Free memory was 298.3MB in the beginning and 295.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.24ms. Allocated memory is still 362.8MB. Free memory was 295.2MB in the beginning and 292.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 480.96ms. Allocated memory is still 362.8MB. Free memory was 292.7MB in the beginning and 324.7MB in the end (delta: -32.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 100553.99ms. Allocated memory was 362.8MB in the beginning and 455.1MB in the end (delta: 92.3MB). Free memory was 323.8MB in the beginning and 407.4MB in the end (delta: -83.6MB). Peak memory consumption was 9.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 1044]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [1044] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 97.6s, 175 PlacesBefore, 60 PlacesAfterwards, 171 TransitionsBefore, 56 TransitionsAfterwards, 2544 CoEnabledTransitionPairs, 9 FixpointIterations, 109 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 140 TotalNumberOfCompositions, 17799 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4147, independent: 3268, independent conditional: 0, independent unconditional: 3268, dependent: 879, dependent conditional: 0, dependent unconditional: 879, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1148, independent: 1047, independent conditional: 0, independent unconditional: 1047, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4147, independent: 2221, independent conditional: 0, independent unconditional: 2221, dependent: 778, dependent conditional: 0, dependent unconditional: 778, unknown: 1148, unknown conditional: 0, unknown unconditional: 1148] , Statistics on independence cache: Total cache size (in pairs): 191, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, Negative cache size: 62, Negative conditional cache size: 0, Negative unconditional cache size: 62, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1237]: Data race detected Data race detected The following path leads to a data race: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A, *B; [L1233] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1234] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1245] 0 pthread_t t1; [L1246] CALL, EXPR 0 new(3) [L1228] 0 struct s *p = malloc(sizeof(struct s)); [L1229] 0 p->datum = x [L1230] 0 p->next = ((void *)0) [L1231] 0 return p; [L1246] RET, EXPR 0 new(3) [L1246] 0 A = new(3) [L1247] CALL, EXPR 0 new(5) [L1228] 0 struct s *p = malloc(sizeof(struct s)); [L1229] 0 p->datum = x [L1230] 0 p->next = ((void *)0) [L1231] 0 return p; [L1247] RET, EXPR 0 new(5) [L1247] 0 B = new(5) [L1248] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={9:0}] [L1249] 0 int *data; [L1251] EXPR 0 A->datum VAL [A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, t1={9:0}] [L1251] 0 data = &A->datum [L1237] EXPR 1 A->datum VAL [A->datum=3, A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1237] 1 A->datum++ VAL [A->datum=3, A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1253] 0 *data = 42 VAL [*data = 42=52, A->datum=3, A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}, data={-3:0}, t1={9:0}] [L1237] 1 A->datum++ VAL [A->datum=3, A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: p->datum = x [1229] * C: p->next = ((void *)0) [1230] * C: A = new(3) [1246] * C: B = new(5) [1247] * C: p->next = ((void *)0) [1230] * C: p->next = ((void *)0) [1230] * C: p->datum = x [1229] * C: p->datum = x [1229] * C: p->datum = x [1229] * C: p->next = ((void *)0) [1230] * C: *data = 42 [1253] and C: A->datum++ [1237] - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1247]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1253]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: 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: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 228 locations, 21 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: 100.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 97.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 114 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 114 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 529 IncrementalHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 40 mSDtfsCounter, 529 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=788occurred in iteration=4, 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, 1.0s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 211 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 proved your program to be incorrect! [2023-08-26 07:35:30,568 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...