/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/increased_bounds/pthread-wmm_mix006_power.oepc_pso.oepc_rmo.oepc_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 17:01:47,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 17:01:47,329 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 17:01:47,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 17:01:47,334 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 17:01:47,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 17:01:47,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 17:01:47,360 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 17:01:47,361 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 17:01:47,364 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 17:01:47,365 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 17:01:47,365 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 17:01:47,365 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 17:01:47,366 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 17:01:47,367 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 17:01:47,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 17:01:47,367 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 17:01:47,367 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 17:01:47,367 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 17:01:47,368 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 17:01:47,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 17:01:47,368 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 17:01:47,368 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 17:01:47,369 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 17:01:47,369 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 17:01:47,369 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 17:01:47,369 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 17:01:47,370 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 17:01:47,370 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 17:01:47,370 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 17:01:47,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 17:01:47,371 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 17:01:47,371 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 17:01:47,371 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 17:01:47,371 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 17:01:47,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 17:01:47,372 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 17:01:47,372 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 17:01:47,372 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 17:01:47,372 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 17:01:47,372 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 17:01:47,372 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 17:01:47,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 17:01:47,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 17:01:47,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 17:01:47,620 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 17:01:47,620 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 17:01:47,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix006_power.oepc_pso.oepc_rmo.oepc_bound2.i [2023-08-03 17:01:48,593 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 17:01:48,883 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 17:01:48,884 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix006_power.oepc_pso.oepc_rmo.oepc_bound2.i [2023-08-03 17:01:48,902 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3a7c4dfe/cdce2ec9306e4a8c801cdcecb19bc70e/FLAGbd943b8c9 [2023-08-03 17:01:48,919 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3a7c4dfe/cdce2ec9306e4a8c801cdcecb19bc70e [2023-08-03 17:01:48,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 17:01:48,925 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 17:01:48,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 17:01:48,927 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 17:01:48,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 17:01:48,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 05:01:48" (1/1) ... [2023-08-03 17:01:48,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d7a39ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:01:48, skipping insertion in model container [2023-08-03 17:01:48,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 05:01:48" (1/1) ... [2023-08-03 17:01:48,972 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 17:01:49,104 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix006_power.oepc_pso.oepc_rmo.oepc_bound2.i[969,982] [2023-08-03 17:01:49,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 17:01:49,331 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 17:01:49,342 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix006_power.oepc_pso.oepc_rmo.oepc_bound2.i[969,982] [2023-08-03 17:01:49,355 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 17:01:49,356 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 17:01:49,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 17:01:49,405 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 17:01:49,405 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 17:01:49,410 INFO L206 MainTranslator]: Completed translation [2023-08-03 17:01:49,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:01:49 WrapperNode [2023-08-03 17:01:49,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 17:01:49,411 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 17:01:49,412 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 17:01:49,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 17:01:49,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:01:49" (1/1) ... [2023-08-03 17:01:49,430 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:01:49" (1/1) ... [2023-08-03 17:01:49,450 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 154 [2023-08-03 17:01:49,450 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 17:01:49,451 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 17:01:49,451 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 17:01:49,451 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 17:01:49,458 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:01:49" (1/1) ... [2023-08-03 17:01:49,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:01:49" (1/1) ... [2023-08-03 17:01:49,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:01:49" (1/1) ... [2023-08-03 17:01:49,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:01:49" (1/1) ... [2023-08-03 17:01:49,471 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:01:49" (1/1) ... [2023-08-03 17:01:49,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:01:49" (1/1) ... [2023-08-03 17:01:49,476 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:01:49" (1/1) ... [2023-08-03 17:01:49,477 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:01:49" (1/1) ... [2023-08-03 17:01:49,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 17:01:49,481 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 17:01:49,481 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 17:01:49,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 17:01:49,482 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:01:49" (1/1) ... [2023-08-03 17:01:49,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 17:01:49,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:01:49,510 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 17:01:49,525 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 17:01:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 17:01:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-03 17:01:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 17:01:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 17:01:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 17:01:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-03 17:01:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-03 17:01:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-03 17:01:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-03 17:01:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-03 17:01:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-03 17:01:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 17:01:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-03 17:01:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 17:01:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 17:01:49,554 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 17:01:49,663 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 17:01:49,665 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 17:01:49,935 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 17:01:50,123 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 17:01:50,123 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-03 17:01:50,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 05:01:50 BoogieIcfgContainer [2023-08-03 17:01:50,126 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 17:01:50,130 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 17:01:50,131 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 17:01:50,134 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 17:01:50,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 05:01:48" (1/3) ... [2023-08-03 17:01:50,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a97db2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 05:01:50, skipping insertion in model container [2023-08-03 17:01:50,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:01:49" (2/3) ... [2023-08-03 17:01:50,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a97db2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 05:01:50, skipping insertion in model container [2023-08-03 17:01:50,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 05:01:50" (3/3) ... [2023-08-03 17:01:50,137 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-wmm_mix006_power.oepc_pso.oepc_rmo.oepc_bound2.i [2023-08-03 17:01:50,144 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 17:01:50,152 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 17:01:50,152 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-03 17:01:50,152 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 17:01:50,205 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 17:01:50,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 133 transitions, 281 flow [2023-08-03 17:01:50,337 INFO L124 PetriNetUnfolderBase]: 30/456 cut-off events. [2023-08-03 17:01:50,337 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:01:50,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 456 events. 30/456 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2022 event pairs, 0 based on Foata normal form. 0/403 useless extension candidates. Maximal degree in co-relation 273. Up to 16 conditions per place. [2023-08-03 17:01:50,343 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 133 transitions, 281 flow [2023-08-03 17:01:50,347 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 133 transitions, 281 flow [2023-08-03 17:01:50,350 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 17:01:50,357 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 133 transitions, 281 flow [2023-08-03 17:01:50,359 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 133 transitions, 281 flow [2023-08-03 17:01:50,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 133 transitions, 281 flow [2023-08-03 17:01:50,414 INFO L124 PetriNetUnfolderBase]: 30/456 cut-off events. [2023-08-03 17:01:50,414 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:01:50,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 456 events. 30/456 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2022 event pairs, 0 based on Foata normal form. 0/403 useless extension candidates. Maximal degree in co-relation 273. Up to 16 conditions per place. [2023-08-03 17:01:50,420 INFO L119 LiptonReduction]: Number of co-enabled transitions 2976 [2023-08-03 17:01:53,671 INFO L134 LiptonReduction]: Checked pairs total: 7672 [2023-08-03 17:01:53,671 INFO L136 LiptonReduction]: Total number of compositions: 112 [2023-08-03 17:01:53,683 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 17:01:53,688 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;@304c14cf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 17:01:53,688 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-03 17:01:53,691 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 17:01:53,691 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-08-03 17:01:53,691 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:01:53,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:01:53,692 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 17:01:53,692 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-08-03 17:01:53,696 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:01:53,696 INFO L85 PathProgramCache]: Analyzing trace with hash 17662655, now seen corresponding path program 1 times [2023-08-03 17:01:53,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:01:53,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358591238] [2023-08-03 17:01:53,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:01:53,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:01:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:01:54,024 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 17:01:54,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:01:54,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358591238] [2023-08-03 17:01:54,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358591238] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:01:54,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:01:54,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 17:01:54,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607879207] [2023-08-03 17:01:54,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:01:54,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:01:54,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:01:54,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:01:54,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:01:54,062 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 245 [2023-08-03 17:01:54,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 17:01:54,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:01:54,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 245 [2023-08-03 17:01:54,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:01:54,530 INFO L124 PetriNetUnfolderBase]: 1908/3322 cut-off events. [2023-08-03 17:01:54,531 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-08-03 17:01:54,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6417 conditions, 3322 events. 1908/3322 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 20970 event pairs, 498 based on Foata normal form. 0/2958 useless extension candidates. Maximal degree in co-relation 5408. Up to 2077 conditions per place. [2023-08-03 17:01:54,549 INFO L140 encePairwiseOnDemand]: 241/245 looper letters, 43 selfloop transitions, 2 changer transitions 2/54 dead transitions. [2023-08-03 17:01:54,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 54 transitions, 223 flow [2023-08-03 17:01:54,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:01:54,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:01:54,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 398 transitions. [2023-08-03 17:01:54,574 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5414965986394558 [2023-08-03 17:01:54,574 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 398 transitions. [2023-08-03 17:01:54,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 398 transitions. [2023-08-03 17:01:54,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:01:54,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 398 transitions. [2023-08-03 17:01:54,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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 17:01:54,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 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 17:01:54,591 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 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 17:01:54,592 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 85 flow. Second operand 3 states and 398 transitions. [2023-08-03 17:01:54,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 54 transitions, 223 flow [2023-08-03 17:01:54,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 54 transitions, 223 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 17:01:54,597 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 83 flow [2023-08-03 17:01:54,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2023-08-03 17:01:54,602 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2023-08-03 17:01:54,602 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 83 flow [2023-08-03 17:01:54,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 17:01:54,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:01:54,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-03 17:01:54,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 17:01:54,604 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-08-03 17:01:54,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:01:54,605 INFO L85 PathProgramCache]: Analyzing trace with hash -197018834, now seen corresponding path program 1 times [2023-08-03 17:01:54,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:01:54,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139267802] [2023-08-03 17:01:54,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:01:54,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:01:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:01:54,691 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 17:01:54,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:01:54,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139267802] [2023-08-03 17:01:54,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139267802] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:01:54,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:01:54,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 17:01:54,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517657879] [2023-08-03 17:01:54,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:01:54,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:01:54,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:01:54,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:01:54,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:01:54,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 245 [2023-08-03 17:01:54,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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 17:01:54,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:01:54,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 245 [2023-08-03 17:01:54,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:01:54,991 INFO L124 PetriNetUnfolderBase]: 1417/2356 cut-off events. [2023-08-03 17:01:54,991 INFO L125 PetriNetUnfolderBase]: For 203/203 co-relation queries the response was YES. [2023-08-03 17:01:54,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4816 conditions, 2356 events. 1417/2356 cut-off events. For 203/203 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 12885 event pairs, 844 based on Foata normal form. 0/2172 useless extension candidates. Maximal degree in co-relation 4793. Up to 2182 conditions per place. [2023-08-03 17:01:55,007 INFO L140 encePairwiseOnDemand]: 242/245 looper letters, 27 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2023-08-03 17:01:55,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 36 transitions, 151 flow [2023-08-03 17:01:55,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:01:55,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:01:55,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2023-08-03 17:01:55,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5020408163265306 [2023-08-03 17:01:55,010 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2023-08-03 17:01:55,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2023-08-03 17:01:55,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:01:55,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2023-08-03 17:01:55,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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 17:01:55,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 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 17:01:55,016 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 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 17:01:55,018 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 83 flow. Second operand 3 states and 369 transitions. [2023-08-03 17:01:55,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 36 transitions, 151 flow [2023-08-03 17:01:55,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 36 transitions, 145 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-03 17:01:55,025 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 87 flow [2023-08-03 17:01:55,025 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2023-08-03 17:01:55,026 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2023-08-03 17:01:55,026 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 87 flow [2023-08-03 17:01:55,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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 17:01:55,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:01:55,026 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-03 17:01:55,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-03 17:01:55,027 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-08-03 17:01:55,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:01:55,029 INFO L85 PathProgramCache]: Analyzing trace with hash -205989624, now seen corresponding path program 1 times [2023-08-03 17:01:55,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:01:55,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427211713] [2023-08-03 17:01:55,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:01:55,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:01:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:01:55,055 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 17:01:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:01:55,077 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 17:01:55,078 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 17:01:55,078 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2023-08-03 17:01:55,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-08-03 17:01:55,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2023-08-03 17:01:55,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-08-03 17:01:55,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2023-08-03 17:01:55,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-08-03 17:01:55,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-03 17:01:55,081 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-03 17:01:55,083 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-03 17:01:55,083 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-03 17:01:55,107 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 17:01:55,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 160 transitions, 356 flow [2023-08-03 17:01:55,260 INFO L124 PetriNetUnfolderBase]: 93/1403 cut-off events. [2023-08-03 17:01:55,260 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-03 17:01:55,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 1403 events. 93/1403 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9709 event pairs, 0 based on Foata normal form. 0/1242 useless extension candidates. Maximal degree in co-relation 1017. Up to 54 conditions per place. [2023-08-03 17:01:55,266 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 160 transitions, 356 flow [2023-08-03 17:01:55,270 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 168 places, 160 transitions, 356 flow [2023-08-03 17:01:55,270 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 17:01:55,270 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 168 places, 160 transitions, 356 flow [2023-08-03 17:01:55,271 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 168 places, 160 transitions, 356 flow [2023-08-03 17:01:55,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 160 transitions, 356 flow [2023-08-03 17:01:55,403 INFO L124 PetriNetUnfolderBase]: 93/1403 cut-off events. [2023-08-03 17:01:55,404 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-03 17:01:55,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 1403 events. 93/1403 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9709 event pairs, 0 based on Foata normal form. 0/1242 useless extension candidates. Maximal degree in co-relation 1017. Up to 54 conditions per place. [2023-08-03 17:01:55,436 INFO L119 LiptonReduction]: Number of co-enabled transitions 7248 [2023-08-03 17:01:58,642 INFO L134 LiptonReduction]: Checked pairs total: 25843 [2023-08-03 17:01:58,642 INFO L136 LiptonReduction]: Total number of compositions: 121 [2023-08-03 17:01:58,644 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 17:01:58,645 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;@304c14cf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 17:01:58,645 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-03 17:01:58,647 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 17:01:58,648 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-03 17:01:58,648 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:01:58,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:01:58,648 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 17:01:58,648 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-03 17:01:58,648 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:01:58,648 INFO L85 PathProgramCache]: Analyzing trace with hash 27137100, now seen corresponding path program 1 times [2023-08-03 17:01:58,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:01:58,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517578912] [2023-08-03 17:01:58,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:01:58,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:01:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:01:58,747 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 17:01:58,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:01:58,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517578912] [2023-08-03 17:01:58,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517578912] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:01:58,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:01:58,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 17:01:58,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163212882] [2023-08-03 17:01:58,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:01:58,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:01:58,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:01:58,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:01:58,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:01:58,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 281 [2023-08-03 17:01:58,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 56 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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 17:01:58,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:01:58,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 281 [2023-08-03 17:01:58,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:02:58,098 INFO L124 PetriNetUnfolderBase]: 490490/644821 cut-off events. [2023-08-03 17:02:58,098 INFO L125 PetriNetUnfolderBase]: For 9530/9530 co-relation queries the response was YES. [2023-08-03 17:02:59,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1269902 conditions, 644821 events. 490490/644821 cut-off events. For 9530/9530 co-relation queries the response was YES. Maximal size of possible extension queue 17713. Compared 4921335 event pairs, 81617 based on Foata normal form. 0/575141 useless extension candidates. Maximal degree in co-relation 1069303. Up to 565329 conditions per place. [2023-08-03 17:03:02,436 INFO L140 encePairwiseOnDemand]: 275/281 looper letters, 71 selfloop transitions, 3 changer transitions 0/88 dead transitions. [2023-08-03 17:03:02,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 88 transitions, 381 flow [2023-08-03 17:03:02,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:03:02,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:03:02,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2023-08-03 17:03:02,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5693950177935944 [2023-08-03 17:03:02,439 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2023-08-03 17:03:02,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2023-08-03 17:03:02,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:03:02,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2023-08-03 17:03:02,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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 17:03:02,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 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 17:03:02,443 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 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 17:03:02,443 INFO L175 Difference]: Start difference. First operand has 68 places, 56 transitions, 148 flow. Second operand 3 states and 480 transitions. [2023-08-03 17:03:02,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 88 transitions, 381 flow [2023-08-03 17:03:02,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 88 transitions, 375 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-03 17:03:02,454 INFO L231 Difference]: Finished difference. Result has 71 places, 57 transitions, 161 flow [2023-08-03 17:03:02,454 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=71, PETRI_TRANSITIONS=57} [2023-08-03 17:03:02,455 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, 3 predicate places. [2023-08-03 17:03:02,455 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 57 transitions, 161 flow [2023-08-03 17:03:02,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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 17:03:02,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:03:02,455 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-03 17:03:02,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-03 17:03:02,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-03 17:03:02,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:03:02,456 INFO L85 PathProgramCache]: Analyzing trace with hash 324691407, now seen corresponding path program 1 times [2023-08-03 17:03:02,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:03:02,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008680273] [2023-08-03 17:03:02,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:03:02,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:03:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:03:02,482 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 17:03:02,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:03:02,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008680273] [2023-08-03 17:03:02,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008680273] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:03:02,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:03:02,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 17:03:02,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726240916] [2023-08-03 17:03:02,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:03:02,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:03:02,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:03:02,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:03:02,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:03:02,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 281 [2023-08-03 17:03:02,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 57 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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 17:03:02,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:03:02,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 281 [2023-08-03 17:03:02,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:04:01,216 INFO L124 PetriNetUnfolderBase]: 478628/619736 cut-off events. [2023-08-03 17:04:01,216 INFO L125 PetriNetUnfolderBase]: For 50026/50026 co-relation queries the response was YES. [2023-08-03 17:04:03,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1311889 conditions, 619736 events. 478628/619736 cut-off events. For 50026/50026 co-relation queries the response was YES. Maximal size of possible extension queue 16911. Compared 4374667 event pairs, 400414 based on Foata normal form. 0/551611 useless extension candidates. Maximal degree in co-relation 863654. Up to 598251 conditions per place. [2023-08-03 17:04:06,635 INFO L140 encePairwiseOnDemand]: 278/281 looper letters, 46 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2023-08-03 17:04:06,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 62 transitions, 270 flow [2023-08-03 17:04:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:04:06,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:04:06,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2023-08-03 17:04:06,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5219454329774614 [2023-08-03 17:04:06,654 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 440 transitions. [2023-08-03 17:04:06,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 440 transitions. [2023-08-03 17:04:06,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:04:06,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 440 transitions. [2023-08-03 17:04:06,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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 17:04:06,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 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 17:04:06,658 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 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 17:04:06,658 INFO L175 Difference]: Start difference. First operand has 71 places, 57 transitions, 161 flow. Second operand 3 states and 440 transitions. [2023-08-03 17:04:06,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 62 transitions, 270 flow [2023-08-03 17:04:06,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 62 transitions, 266 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 17:04:06,740 INFO L231 Difference]: Finished difference. Result has 73 places, 58 transitions, 170 flow [2023-08-03 17:04:06,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=73, PETRI_TRANSITIONS=58} [2023-08-03 17:04:06,742 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, 5 predicate places. [2023-08-03 17:04:06,745 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 58 transitions, 170 flow [2023-08-03 17:04:06,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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 17:04:06,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:04:06,746 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 17:04:06,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-03 17:04:06,746 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-03 17:04:06,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:04:06,746 INFO L85 PathProgramCache]: Analyzing trace with hash 890045670, now seen corresponding path program 1 times [2023-08-03 17:04:06,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:04:06,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278979944] [2023-08-03 17:04:06,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:04:06,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:04:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:04:06,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 17:04:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:04:06,782 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 17:04:06,782 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 17:04:06,782 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-08-03 17:04:06,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-08-03 17:04:06,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-08-03 17:04:06,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-03 17:04:06,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-08-03 17:04:06,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2023-08-03 17:04:06,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-08-03 17:04:06,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-03 17:04:06,783 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-03 17:04:06,787 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-03 17:04:06,787 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 17:04:06,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 05:04:06 BasicIcfg [2023-08-03 17:04:06,854 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 17:04:06,854 INFO L158 Benchmark]: Toolchain (without parser) took 137929.95ms. Allocated memory was 509.6MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 467.8MB in the beginning and 11.0GB in the end (delta: -10.5GB). Peak memory consumption was 5.0GB. Max. memory is 16.0GB. [2023-08-03 17:04:06,855 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 335.5MB. Free memory was 285.7MB in the beginning and 285.6MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 17:04:06,855 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.33ms. Allocated memory is still 509.6MB. Free memory was 467.5MB in the beginning and 443.7MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-03 17:04:06,855 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.68ms. Allocated memory is still 509.6MB. Free memory was 443.7MB in the beginning and 441.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 17:04:06,856 INFO L158 Benchmark]: Boogie Preprocessor took 29.74ms. Allocated memory is still 509.6MB. Free memory was 441.2MB in the beginning and 439.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 17:04:06,856 INFO L158 Benchmark]: RCFGBuilder took 644.74ms. Allocated memory is still 509.6MB. Free memory was 439.1MB in the beginning and 466.6MB in the end (delta: -27.5MB). Peak memory consumption was 36.2MB. Max. memory is 16.0GB. [2023-08-03 17:04:06,856 INFO L158 Benchmark]: TraceAbstraction took 136723.55ms. Allocated memory was 509.6MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 466.6MB in the beginning and 11.0GB in the end (delta: -10.5GB). Peak memory consumption was 5.0GB. Max. memory is 16.0GB. [2023-08-03 17:04:06,871 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 335.5MB. Free memory was 285.7MB in the beginning and 285.6MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 484.33ms. Allocated memory is still 509.6MB. Free memory was 467.5MB in the beginning and 443.7MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 38.68ms. Allocated memory is still 509.6MB. Free memory was 443.7MB in the beginning and 441.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.74ms. Allocated memory is still 509.6MB. Free memory was 441.2MB in the beginning and 439.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 644.74ms. Allocated memory is still 509.6MB. Free memory was 439.1MB in the beginning and 466.6MB in the end (delta: -27.5MB). Peak memory consumption was 36.2MB. Max. memory is 16.0GB. * TraceAbstraction took 136723.55ms. Allocated memory was 509.6MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 466.6MB in the beginning and 11.0GB in the end (delta: -10.5GB). Peak memory consumption was 5.0GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 135 PlacesBefore, 41 PlacesAfterwards, 133 TransitionsBefore, 35 TransitionsAfterwards, 2976 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 4 ChoiceCompositions, 112 TotalNumberOfCompositions, 7672 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3565, independent: 3380, independent conditional: 0, independent unconditional: 3380, dependent: 185, dependent conditional: 0, dependent unconditional: 185, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1591, independent: 1544, independent conditional: 0, independent unconditional: 1544, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3565, independent: 1836, independent conditional: 0, independent unconditional: 1836, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 1591, unknown conditional: 0, unknown unconditional: 1591] , Statistics on independence cache: Total cache size (in pairs): 179, Positive cache size: 157, Positive conditional cache size: 0, Positive unconditional cache size: 157, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 168 PlacesBefore, 68 PlacesAfterwards, 160 TransitionsBefore, 56 TransitionsAfterwards, 7248 CoEnabledTransitionPairs, 7 FixpointIterations, 38 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 4 ChoiceCompositions, 121 TotalNumberOfCompositions, 25843 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8296, independent: 7899, independent conditional: 0, independent unconditional: 7899, dependent: 397, dependent conditional: 0, dependent unconditional: 397, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3504, independent: 3420, independent conditional: 0, independent unconditional: 3420, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8296, independent: 4479, independent conditional: 0, independent unconditional: 4479, dependent: 313, dependent conditional: 0, dependent unconditional: 313, unknown: 3504, unknown conditional: 0, unknown unconditional: 3504] , Statistics on independence cache: Total cache size (in pairs): 332, Positive cache size: 301, Positive conditional cache size: 0, Positive unconditional cache size: 301, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p1_EAX = 0; [L713] 0 int __unbuffered_p1_EBX = 0; [L715] 0 int __unbuffered_p2_EAX = 0; [L717] 0 int __unbuffered_p2_EBX = 0; [L718] 0 _Bool main$tmp_guard0; [L719] 0 _Bool main$tmp_guard1; [L721] 0 int x = 0; [L723] 0 int y = 0; [L725] 0 int z = 0; [L726] 0 _Bool z$flush_delayed; [L727] 0 int z$mem_tmp; [L728] 0 _Bool z$r_buff0_thd0; [L729] 0 _Bool z$r_buff0_thd1; [L730] 0 _Bool z$r_buff0_thd2; [L731] 0 _Bool z$r_buff0_thd3; [L732] 0 _Bool z$r_buff1_thd0; [L733] 0 _Bool z$r_buff1_thd1; [L734] 0 _Bool z$r_buff1_thd2; [L735] 0 _Bool z$r_buff1_thd3; [L736] 0 _Bool z$read_delayed; [L737] 0 int *z$read_delayed_var; [L738] 0 int z$w_buff0; [L739] 0 _Bool z$w_buff0_used; [L740] 0 int z$w_buff1; [L741] 0 _Bool z$w_buff1_used; [L742] 0 _Bool weak$$choice0; [L743] 0 _Bool weak$$choice2; [L843] 0 pthread_t t153[2]; [L844] 0 int asdf=0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, asdf=0, main$tmp_guard0=0, main$tmp_guard1=0, t153={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L844] COND TRUE 0 asdf<2 [L844] FCALL, FORK 0 pthread_create(&t153[asdf], ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, asdf=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t153[asdf], ((void *)0), P0, ((void *)0))=-2, t153={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L747] 1 z$w_buff1 = z$w_buff0 [L748] 1 z$w_buff0 = 1 [L749] 1 z$w_buff1_used = z$w_buff0_used [L750] 1 z$w_buff0_used = (_Bool)1 [L751] CALL 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L751] RET 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L752] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L753] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L754] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L755] 1 z$r_buff1_thd3 = z$r_buff0_thd3 [L756] 1 z$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L844] 0 asdf++ VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, asdf=1, main$tmp_guard0=0, main$tmp_guard1=0, t153={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L844] COND TRUE 0 asdf<2 [L844] FCALL, FORK 0 pthread_create(&t153[asdf], ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, asdf=1, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t153[asdf], ((void *)0), P0, ((void *)0))=-1, t153={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L747] 2 z$w_buff1 = z$w_buff0 [L748] 2 z$w_buff0 = 1 [L749] 2 z$w_buff1_used = z$w_buff0_used [L750] 2 z$w_buff0_used = (_Bool)1 [L751] CALL 2 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND TRUE 2 !expression [L18] 2 reach_error() VAL [\old(expression)=1, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, expression=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=1, z$w_buff1_used=1, z=0] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 846]: 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: 848]: 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: 844]: 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 7 procedures, 156 locations, 6 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: 4.8s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 2 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 10 procedures, 183 locations, 7 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: 131.7s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 128.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 172 IncrementalHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 8 mSDtfsCounter, 172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-03 17:04:06,905 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...