/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_safe021_power.oepc_pso.oepc_rmo.oepc_rmo.opt_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 18:40:30,285 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 18:40:30,358 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 18:40:30,364 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 18:40:30,364 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 18:40:30,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 18:40:30,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 18:40:30,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 18:40:30,394 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 18:40:30,394 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 18:40:30,395 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 18:40:30,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 18:40:30,397 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 18:40:30,398 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 18:40:30,398 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 18:40:30,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 18:40:30,399 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 18:40:30,399 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 18:40:30,399 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 18:40:30,400 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 18:40:30,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 18:40:30,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 18:40:30,401 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 18:40:30,401 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 18:40:30,401 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 18:40:30,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 18:40:30,402 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 18:40:30,402 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 18:40:30,402 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 18:40:30,403 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 18:40:30,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 18:40:30,403 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 18:40:30,404 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 18:40:30,404 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 18:40:30,404 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 18:40:30,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 18:40:30,404 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 18:40:30,405 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 18:40:30,405 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 18:40:30,405 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 18:40:30,405 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 18:40:30,406 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 18:40:30,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 18:40:30,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 18:40:30,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 18:40:30,664 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 18:40:30,665 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 18:40:30,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_safe021_power.oepc_pso.oepc_rmo.oepc_rmo.opt_bound2.i [2023-08-03 18:40:31,789 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 18:40:32,015 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 18:40:32,016 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_safe021_power.oepc_pso.oepc_rmo.oepc_rmo.opt_bound2.i [2023-08-03 18:40:32,041 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/480ddb8fc/dab5595cbf0c411f8b90712100c0b7c5/FLAGe256c737b [2023-08-03 18:40:32,058 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/480ddb8fc/dab5595cbf0c411f8b90712100c0b7c5 [2023-08-03 18:40:32,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 18:40:32,066 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 18:40:32,069 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 18:40:32,070 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 18:40:32,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 18:40:32,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 06:40:32" (1/1) ... [2023-08-03 18:40:32,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bc71b97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:40:32, skipping insertion in model container [2023-08-03 18:40:32,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 06:40:32" (1/1) ... [2023-08-03 18:40:32,130 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 18:40:32,293 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_safe021_power.oepc_pso.oepc_rmo.oepc_rmo.opt_bound2.i[978,991] [2023-08-03 18:40:32,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 18:40:32,473 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 18:40:32,491 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_safe021_power.oepc_pso.oepc_rmo.oepc_rmo.opt_bound2.i[978,991] [2023-08-03 18:40:32,497 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 18:40:32,498 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 18:40:32,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 18:40:32,550 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 18:40:32,550 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 18:40:32,555 INFO L206 MainTranslator]: Completed translation [2023-08-03 18:40:32,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:40:32 WrapperNode [2023-08-03 18:40:32,556 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 18:40:32,557 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 18:40:32,557 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 18:40:32,557 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 18:40:32,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:40:32" (1/1) ... [2023-08-03 18:40:32,576 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:40:32" (1/1) ... [2023-08-03 18:40:32,606 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 152 [2023-08-03 18:40:32,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 18:40:32,607 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 18:40:32,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 18:40:32,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 18:40:32,615 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:40:32" (1/1) ... [2023-08-03 18:40:32,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:40:32" (1/1) ... [2023-08-03 18:40:32,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:40:32" (1/1) ... [2023-08-03 18:40:32,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:40:32" (1/1) ... [2023-08-03 18:40:32,627 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:40:32" (1/1) ... [2023-08-03 18:40:32,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:40:32" (1/1) ... [2023-08-03 18:40:32,633 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:40:32" (1/1) ... [2023-08-03 18:40:32,634 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:40:32" (1/1) ... [2023-08-03 18:40:32,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 18:40:32,638 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 18:40:32,638 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 18:40:32,638 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 18:40:32,639 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:40:32" (1/1) ... [2023-08-03 18:40:32,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 18:40:32,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 18:40:33,168 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 18:40:33,178 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 18:40:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 18:40:33,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-03 18:40:33,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 18:40:33,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 18:40:33,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 18:40:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-03 18:40:33,214 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-03 18:40:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-03 18:40:33,214 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-03 18:40:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-03 18:40:33,214 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-03 18:40:33,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 18:40:33,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-03 18:40:33,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 18:40:33,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 18:40:33,216 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 18:40:33,356 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 18:40:33,357 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 18:40:33,612 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 18:40:33,775 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 18:40:33,775 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-03 18:40:33,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 06:40:33 BoogieIcfgContainer [2023-08-03 18:40:33,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 18:40:33,780 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 18:40:33,781 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 18:40:33,784 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 18:40:33,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 06:40:32" (1/3) ... [2023-08-03 18:40:33,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b59ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 06:40:33, skipping insertion in model container [2023-08-03 18:40:33,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 06:40:32" (2/3) ... [2023-08-03 18:40:33,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b59ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 06:40:33, skipping insertion in model container [2023-08-03 18:40:33,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 06:40:33" (3/3) ... [2023-08-03 18:40:33,788 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-wmm_safe021_power.oepc_pso.oepc_rmo.oepc_rmo.opt_bound2.i [2023-08-03 18:40:33,796 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 18:40:33,804 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 18:40:33,805 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-03 18:40:33,805 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 18:40:33,867 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 18:40:33,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 129 transitions, 273 flow [2023-08-03 18:40:34,088 INFO L124 PetriNetUnfolderBase]: 30/448 cut-off events. [2023-08-03 18:40:34,088 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 18:40:34,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 448 events. 30/448 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1963 event pairs, 0 based on Foata normal form. 0/395 useless extension candidates. Maximal degree in co-relation 269. Up to 16 conditions per place. [2023-08-03 18:40:34,094 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 129 transitions, 273 flow [2023-08-03 18:40:34,104 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 129 transitions, 273 flow [2023-08-03 18:40:34,107 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 18:40:34,126 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 129 transitions, 273 flow [2023-08-03 18:40:34,128 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 129 transitions, 273 flow [2023-08-03 18:40:34,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 129 transitions, 273 flow [2023-08-03 18:40:34,187 INFO L124 PetriNetUnfolderBase]: 30/448 cut-off events. [2023-08-03 18:40:34,187 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 18:40:34,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 448 events. 30/448 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1963 event pairs, 0 based on Foata normal form. 0/395 useless extension candidates. Maximal degree in co-relation 269. Up to 16 conditions per place. [2023-08-03 18:40:34,196 INFO L119 LiptonReduction]: Number of co-enabled transitions 2728 [2023-08-03 18:40:37,507 INFO L134 LiptonReduction]: Checked pairs total: 6412 [2023-08-03 18:40:37,508 INFO L136 LiptonReduction]: Total number of compositions: 112 [2023-08-03 18:40:37,527 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 18:40:37,534 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;@799a74f3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 18:40:37,534 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-03 18:40:37,539 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 18:40:37,539 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-08-03 18:40:37,540 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 18:40:37,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 18:40:37,540 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 18:40:37,541 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 18:40:37,547 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 18:40:37,547 INFO L85 PathProgramCache]: Analyzing trace with hash 17354814, now seen corresponding path program 1 times [2023-08-03 18:40:37,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 18:40:37,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493316688] [2023-08-03 18:40:37,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 18:40:37,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 18:40:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 18:40:37,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 18:40:37,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 18:40:37,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493316688] [2023-08-03 18:40:37,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493316688] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 18:40:37,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 18:40:37,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 18:40:37,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089465026] [2023-08-03 18:40:37,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 18:40:37,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 18:40:37,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 18:40:37,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 18:40:37,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 18:40:37,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 241 [2023-08-03 18:40:37,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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 18:40:37,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 18:40:37,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 241 [2023-08-03 18:40:37,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 18:40:38,473 INFO L124 PetriNetUnfolderBase]: 1908/3274 cut-off events. [2023-08-03 18:40:38,473 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-08-03 18:40:38,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6377 conditions, 3274 events. 1908/3274 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 19757 event pairs, 498 based on Foata normal form. 0/2936 useless extension candidates. Maximal degree in co-relation 5388. Up to 2077 conditions per place. [2023-08-03 18:40:38,495 INFO L140 encePairwiseOnDemand]: 237/241 looper letters, 43 selfloop transitions, 2 changer transitions 2/52 dead transitions. [2023-08-03 18:40:38,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 52 transitions, 219 flow [2023-08-03 18:40:38,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 18:40:38,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 18:40:38,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2023-08-03 18:40:38,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5338865836791148 [2023-08-03 18:40:38,516 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 386 transitions. [2023-08-03 18:40:38,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 386 transitions. [2023-08-03 18:40:38,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 18:40:38,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 386 transitions. [2023-08-03 18:40:38,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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 18:40:38,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 18:40:38,532 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 18:40:38,534 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 81 flow. Second operand 3 states and 386 transitions. [2023-08-03 18:40:38,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 52 transitions, 219 flow [2023-08-03 18:40:38,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 52 transitions, 219 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 18:40:38,538 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 79 flow [2023-08-03 18:40:38,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2023-08-03 18:40:38,543 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-08-03 18:40:38,544 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 79 flow [2023-08-03 18:40:38,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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 18:40:38,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 18:40:38,544 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-03 18:40:38,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 18:40:38,545 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 18:40:38,545 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 18:40:38,545 INFO L85 PathProgramCache]: Analyzing trace with hash -494761012, now seen corresponding path program 1 times [2023-08-03 18:40:38,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 18:40:38,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464361350] [2023-08-03 18:40:38,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 18:40:38,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 18:40:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 18:40:38,601 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 18:40:38,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 18:40:38,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464361350] [2023-08-03 18:40:38,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464361350] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 18:40:38,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 18:40:38,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 18:40:38,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213702507] [2023-08-03 18:40:38,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 18:40:38,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 18:40:38,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 18:40:38,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 18:40:38,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 18:40:38,613 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 241 [2023-08-03 18:40:38,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 18:40:38,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 18:40:38,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 241 [2023-08-03 18:40:38,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 18:40:38,905 INFO L124 PetriNetUnfolderBase]: 1417/2260 cut-off events. [2023-08-03 18:40:38,905 INFO L125 PetriNetUnfolderBase]: For 203/203 co-relation queries the response was YES. [2023-08-03 18:40:38,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4736 conditions, 2260 events. 1417/2260 cut-off events. For 203/203 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 11558 event pairs, 844 based on Foata normal form. 0/2104 useless extension candidates. Maximal degree in co-relation 4713. Up to 2182 conditions per place. [2023-08-03 18:40:38,920 INFO L140 encePairwiseOnDemand]: 238/241 looper letters, 27 selfloop transitions, 2 changer transitions 0/34 dead transitions. [2023-08-03 18:40:38,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 34 transitions, 147 flow [2023-08-03 18:40:38,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 18:40:38,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 18:40:38,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2023-08-03 18:40:38,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49377593360995853 [2023-08-03 18:40:38,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 357 transitions. [2023-08-03 18:40:38,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 357 transitions. [2023-08-03 18:40:38,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 18:40:38,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 357 transitions. [2023-08-03 18:40:38,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 18:40:38,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 18:40:38,926 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 18:40:38,926 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 79 flow. Second operand 3 states and 357 transitions. [2023-08-03 18:40:38,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 34 transitions, 147 flow [2023-08-03 18:40:38,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 141 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-03 18:40:38,928 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 83 flow [2023-08-03 18:40:38,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2023-08-03 18:40:38,929 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-08-03 18:40:38,929 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 83 flow [2023-08-03 18:40:38,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 18:40:38,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 18:40:38,930 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-03 18:40:38,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-03 18:40:38,930 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-08-03 18:40:38,930 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 18:40:38,930 INFO L85 PathProgramCache]: Analyzing trace with hash -501827067, now seen corresponding path program 1 times [2023-08-03 18:40:38,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 18:40:38,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120449054] [2023-08-03 18:40:38,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 18:40:38,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 18:40:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 18:40:38,958 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 18:40:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 18:40:38,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 18:40:38,996 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 18:40:38,997 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2023-08-03 18:40:38,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-08-03 18:40:39,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2023-08-03 18:40:39,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-08-03 18:40:39,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2023-08-03 18:40:39,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-08-03 18:40:39,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-03 18:40:39,001 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-03 18:40:39,003 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-03 18:40:39,003 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-03 18:40:39,038 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 18:40:39,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 154 transitions, 344 flow [2023-08-03 18:40:39,197 INFO L124 PetriNetUnfolderBase]: 93/1377 cut-off events. [2023-08-03 18:40:39,197 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-03 18:40:39,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1475 conditions, 1377 events. 93/1377 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9466 event pairs, 0 based on Foata normal form. 0/1216 useless extension candidates. Maximal degree in co-relation 1000. Up to 54 conditions per place. [2023-08-03 18:40:39,205 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 154 transitions, 344 flow [2023-08-03 18:40:39,211 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 154 transitions, 344 flow [2023-08-03 18:40:39,211 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 18:40:39,211 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 154 transitions, 344 flow [2023-08-03 18:40:39,211 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 154 transitions, 344 flow [2023-08-03 18:40:39,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 154 transitions, 344 flow [2023-08-03 18:40:39,354 INFO L124 PetriNetUnfolderBase]: 93/1377 cut-off events. [2023-08-03 18:40:39,354 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-03 18:40:39,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1475 conditions, 1377 events. 93/1377 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9466 event pairs, 0 based on Foata normal form. 0/1216 useless extension candidates. Maximal degree in co-relation 1000. Up to 54 conditions per place. [2023-08-03 18:40:39,387 INFO L119 LiptonReduction]: Number of co-enabled transitions 6560 [2023-08-03 18:40:42,544 INFO L134 LiptonReduction]: Checked pairs total: 19162 [2023-08-03 18:40:42,545 INFO L136 LiptonReduction]: Total number of compositions: 119 [2023-08-03 18:40:42,547 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 18:40:42,548 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;@799a74f3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 18:40:42,548 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-03 18:40:42,551 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 18:40:42,551 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-08-03 18:40:42,551 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 18:40:42,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 18:40:42,552 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 18:40:42,552 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 18:40:42,552 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 18:40:42,552 INFO L85 PathProgramCache]: Analyzing trace with hash 26501305, now seen corresponding path program 1 times [2023-08-03 18:40:42,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 18:40:42,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180508226] [2023-08-03 18:40:42,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 18:40:42,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 18:40:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 18:40:42,682 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 18:40:42,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 18:40:42,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180508226] [2023-08-03 18:40:42,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180508226] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 18:40:42,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 18:40:42,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 18:40:42,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992467577] [2023-08-03 18:40:42,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 18:40:42,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 18:40:42,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 18:40:42,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 18:40:42,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 18:40:42,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 273 [2023-08-03 18:40:42,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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 18:40:42,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 18:40:42,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 273 [2023-08-03 18:40:42,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 18:41:39,434 INFO L124 PetriNetUnfolderBase]: 490490/643558 cut-off events. [2023-08-03 18:41:39,434 INFO L125 PetriNetUnfolderBase]: For 9497/9497 co-relation queries the response was YES. [2023-08-03 18:41:40,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1268549 conditions, 643558 events. 490490/643558 cut-off events. For 9497/9497 co-relation queries the response was YES. Maximal size of possible extension queue 15812. Compared 4682790 event pairs, 81617 based on Foata normal form. 0/574838 useless extension candidates. Maximal degree in co-relation 1068852. Up to 565329 conditions per place. [2023-08-03 18:41:42,889 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 71 selfloop transitions, 3 changer transitions 0/84 dead transitions. [2023-08-03 18:41:42,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 84 transitions, 373 flow [2023-08-03 18:41:42,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 18:41:42,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 18:41:42,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 462 transitions. [2023-08-03 18:41:42,891 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2023-08-03 18:41:42,891 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 462 transitions. [2023-08-03 18:41:42,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 462 transitions. [2023-08-03 18:41:42,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 18:41:42,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 462 transitions. [2023-08-03 18:41:42,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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 18:41:42,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 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 18:41:42,895 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 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 18:41:42,895 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 140 flow. Second operand 3 states and 462 transitions. [2023-08-03 18:41:42,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 84 transitions, 373 flow [2023-08-03 18:41:42,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 84 transitions, 367 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-03 18:41:42,911 INFO L231 Difference]: Finished difference. Result has 67 places, 53 transitions, 153 flow [2023-08-03 18:41:42,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=67, PETRI_TRANSITIONS=53} [2023-08-03 18:41:42,912 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 3 predicate places. [2023-08-03 18:41:42,912 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 53 transitions, 153 flow [2023-08-03 18:41:42,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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 18:41:42,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 18:41:42,913 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-03 18:41:42,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-03 18:41:42,913 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 18:41:42,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 18:41:42,913 INFO L85 PathProgramCache]: Analyzing trace with hash -294593969, now seen corresponding path program 1 times [2023-08-03 18:41:42,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 18:41:42,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101638515] [2023-08-03 18:41:42,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 18:41:42,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 18:41:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 18:41:42,968 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 18:41:42,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 18:41:42,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101638515] [2023-08-03 18:41:42,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101638515] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 18:41:42,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 18:41:42,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 18:41:42,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163098239] [2023-08-03 18:41:42,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 18:41:42,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 18:41:42,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 18:41:42,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 18:41:42,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 18:41:42,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 273 [2023-08-03 18:41:42,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 53 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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 18:41:42,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 18:41:42,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 273 [2023-08-03 18:41:42,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 18:42:36,470 INFO L124 PetriNetUnfolderBase]: 478628/608918 cut-off events. [2023-08-03 18:42:36,472 INFO L125 PetriNetUnfolderBase]: For 50118/50118 co-relation queries the response was YES. [2023-08-03 18:42:38,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1300681 conditions, 608918 events. 478628/608918 cut-off events. For 50118/50118 co-relation queries the response was YES. Maximal size of possible extension queue 14461. Compared 3958666 event pairs, 400414 based on Foata normal form. 0/542983 useless extension candidates. Maximal degree in co-relation 855896. Up to 598251 conditions per place. [2023-08-03 18:42:41,426 INFO L140 encePairwiseOnDemand]: 270/273 looper letters, 46 selfloop transitions, 2 changer transitions 0/58 dead transitions. [2023-08-03 18:42:41,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 58 transitions, 262 flow [2023-08-03 18:42:41,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 18:42:41,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 18:42:41,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 422 transitions. [2023-08-03 18:42:41,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5152625152625152 [2023-08-03 18:42:41,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 422 transitions. [2023-08-03 18:42:41,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 422 transitions. [2023-08-03 18:42:41,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 18:42:41,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 422 transitions. [2023-08-03 18:42:41,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 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 18:42:41,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 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 18:42:41,434 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 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 18:42:41,434 INFO L175 Difference]: Start difference. First operand has 67 places, 53 transitions, 153 flow. Second operand 3 states and 422 transitions. [2023-08-03 18:42:41,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 58 transitions, 262 flow [2023-08-03 18:42:41,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 58 transitions, 258 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 18:42:41,454 INFO L231 Difference]: Finished difference. Result has 69 places, 54 transitions, 162 flow [2023-08-03 18:42:41,454 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=69, PETRI_TRANSITIONS=54} [2023-08-03 18:42:41,456 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 5 predicate places. [2023-08-03 18:42:41,457 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 54 transitions, 162 flow [2023-08-03 18:42:41,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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 18:42:41,457 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 18:42:41,457 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 18:42:41,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-03 18:42:41,458 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 18:42:41,458 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 18:42:41,458 INFO L85 PathProgramCache]: Analyzing trace with hash 148657518, now seen corresponding path program 1 times [2023-08-03 18:42:41,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 18:42:41,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862573311] [2023-08-03 18:42:41,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 18:42:41,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 18:42:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 18:42:41,473 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 18:42:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 18:42:41,513 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 18:42:41,513 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 18:42:41,513 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-08-03 18:42:41,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-08-03 18:42:41,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-08-03 18:42:41,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-03 18:42:41,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-08-03 18:42:41,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2023-08-03 18:42:41,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-08-03 18:42:41,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-03 18:42:41,514 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-03 18:42:41,518 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-03 18:42:41,518 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 18:42:41,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 06:42:41 BasicIcfg [2023-08-03 18:42:41,613 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 18:42:41,614 INFO L158 Benchmark]: Toolchain (without parser) took 129548.22ms. Allocated memory was 331.4MB in the beginning and 16.0GB in the end (delta: 15.7GB). Free memory was 287.7MB in the beginning and 11.1GB in the end (delta: -10.8GB). Peak memory consumption was 4.9GB. Max. memory is 16.0GB. [2023-08-03 18:42:41,614 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 331.4MB. Free memory is still 283.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 18:42:41,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 486.70ms. Allocated memory is still 331.4MB. Free memory was 287.7MB in the beginning and 263.6MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-03 18:42:41,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.22ms. Allocated memory is still 331.4MB. Free memory was 263.6MB in the beginning and 261.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 18:42:41,615 INFO L158 Benchmark]: Boogie Preprocessor took 30.22ms. Allocated memory is still 331.4MB. Free memory was 261.5MB in the beginning and 259.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 18:42:41,615 INFO L158 Benchmark]: RCFGBuilder took 1139.58ms. Allocated memory is still 331.4MB. Free memory was 259.4MB in the beginning and 220.7MB in the end (delta: 38.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-03 18:42:41,615 INFO L158 Benchmark]: TraceAbstraction took 127832.84ms. Allocated memory was 331.4MB in the beginning and 16.0GB in the end (delta: 15.7GB). Free memory was 219.6MB in the beginning and 11.1GB in the end (delta: -10.9GB). Peak memory consumption was 4.8GB. Max. memory is 16.0GB. [2023-08-03 18:42:41,621 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 331.4MB. Free memory is still 283.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 486.70ms. Allocated memory is still 331.4MB. Free memory was 287.7MB in the beginning and 263.6MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 50.22ms. Allocated memory is still 331.4MB. Free memory was 263.6MB in the beginning and 261.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.22ms. Allocated memory is still 331.4MB. Free memory was 261.5MB in the beginning and 259.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 1139.58ms. Allocated memory is still 331.4MB. Free memory was 259.4MB in the beginning and 220.7MB in the end (delta: 38.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * TraceAbstraction took 127832.84ms. Allocated memory was 331.4MB in the beginning and 16.0GB in the end (delta: 15.7GB). Free memory was 219.6MB in the beginning and 11.1GB in the end (delta: -10.9GB). Peak memory consumption was 4.8GB. 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: 3.4s, 131 PlacesBefore, 39 PlacesAfterwards, 129 TransitionsBefore, 33 TransitionsAfterwards, 2728 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 57 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 4 ChoiceCompositions, 112 TotalNumberOfCompositions, 6412 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2853, independent: 2695, independent conditional: 0, independent unconditional: 2695, dependent: 158, dependent conditional: 0, dependent unconditional: 158, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1426, independent: 1384, independent conditional: 0, independent unconditional: 1384, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2853, independent: 1311, independent conditional: 0, independent unconditional: 1311, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 1426, unknown conditional: 0, unknown unconditional: 1426] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 114, Positive conditional cache size: 0, Positive unconditional cache size: 114, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 162 PlacesBefore, 64 PlacesAfterwards, 154 TransitionsBefore, 52 TransitionsAfterwards, 6560 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 4 ChoiceCompositions, 119 TotalNumberOfCompositions, 19162 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7659, independent: 7369, independent conditional: 0, independent unconditional: 7369, dependent: 290, dependent conditional: 0, dependent unconditional: 290, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3268, independent: 3187, independent conditional: 0, independent unconditional: 3187, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7659, independent: 4182, independent conditional: 0, independent unconditional: 4182, dependent: 209, dependent conditional: 0, dependent unconditional: 209, unknown: 3268, unknown conditional: 0, unknown unconditional: 3268] , Statistics on independence cache: Total cache size (in pairs): 341, Positive cache size: 315, Positive conditional cache size: 0, Positive unconditional cache size: 315, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, 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_p2_EAX = 0; [L713] 0 int __unbuffered_p2_EBX = 0; [L714] 0 _Bool main$tmp_guard0; [L715] 0 _Bool main$tmp_guard1; [L717] 0 int x = 0; [L719] 0 int y = 0; [L721] 0 int z = 0; [L722] 0 _Bool z$flush_delayed; [L723] 0 int z$mem_tmp; [L724] 0 _Bool z$r_buff0_thd0; [L725] 0 _Bool z$r_buff0_thd1; [L726] 0 _Bool z$r_buff0_thd2; [L727] 0 _Bool z$r_buff0_thd3; [L728] 0 _Bool z$r_buff1_thd0; [L729] 0 _Bool z$r_buff1_thd1; [L730] 0 _Bool z$r_buff1_thd2; [L731] 0 _Bool z$r_buff1_thd3; [L732] 0 _Bool z$read_delayed; [L733] 0 int *z$read_delayed_var; [L734] 0 int z$w_buff0; [L735] 0 _Bool z$w_buff0_used; [L736] 0 int z$w_buff1; [L737] 0 _Bool z$w_buff1_used; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L833] 0 pthread_t t2281[2]; [L834] 0 int asdf=0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, asdf=0, main$tmp_guard0=0, main$tmp_guard1=0, t2281={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] [L834] COND TRUE 0 asdf<2 [L834] FCALL, FORK 0 pthread_create(&t2281[asdf], ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, asdf=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2281[asdf], ((void *)0), P0, ((void *)0))=-1, t2281={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] [L743] 1 z$w_buff1 = z$w_buff0 [L744] 1 z$w_buff0 = 1 [L745] 1 z$w_buff1_used = z$w_buff0_used [L746] 1 z$w_buff0_used = (_Bool)1 [L747] CALL 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L747] RET 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L748] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L749] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L750] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L751] 1 z$r_buff1_thd3 = z$r_buff0_thd3 [L752] 1 z$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$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] [L834] 0 asdf++ VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, asdf=1, main$tmp_guard0=0, main$tmp_guard1=0, t2281={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] [L834] COND TRUE 0 asdf<2 [L834] FCALL, FORK 0 pthread_create(&t2281[asdf], ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, asdf=1, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2281[asdf], ((void *)0), P0, ((void *)0))=0, t2281={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] [L743] 2 z$w_buff1 = z$w_buff0 [L744] 2 z$w_buff0 = 1 [L745] 2 z$w_buff1_used = z$w_buff0_used [L746] 2 z$w_buff0_used = (_Bool)1 [L747] 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_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: 834]: 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: 836]: 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: 838]: 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, 150 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: 5.1s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, 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=83occurred 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, 0.3s 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, 175 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: 122.5s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 118.7s, 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=162occurred 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, 0.2s 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 18:42:41,677 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...