/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_mix024_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 17:17:20,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 17:17:20,849 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 17:17:20,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 17:17:20,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 17:17:20,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 17:17:20,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 17:17:20,880 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 17:17:20,881 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 17:17:20,881 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 17:17:20,881 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 17:17:20,882 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 17:17:20,882 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 17:17:20,882 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 17:17:20,882 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 17:17:20,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 17:17:20,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 17:17:20,883 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 17:17:20,883 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 17:17:20,884 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 17:17:20,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 17:17:20,887 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 17:17:20,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 17:17:20,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 17:17:20,890 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 17:17:20,890 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 17:17:20,891 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 17:17:20,892 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 17:17:20,892 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 17:17:20,892 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 17:17:20,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 17:17:20,893 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 17:17:20,893 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 17:17:20,893 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 17:17:20,893 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 17:17:20,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 17:17:20,893 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 17:17:20,893 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 17:17:20,893 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 17:17:20,894 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 17:17:20,894 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 17:17:20,894 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 17:17:21,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 17:17:21,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 17:17:21,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 17:17:21,085 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 17:17:21,086 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 17:17:21,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix024_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt_bound2.i [2023-08-03 17:17:22,126 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 17:17:22,328 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 17:17:22,329 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix024_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt_bound2.i [2023-08-03 17:17:22,341 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3c5a127a/fb561fe6ee7141e4a6286774cf13b13c/FLAGb28fe41ce [2023-08-03 17:17:22,362 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3c5a127a/fb561fe6ee7141e4a6286774cf13b13c [2023-08-03 17:17:22,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 17:17:22,365 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 17:17:22,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 17:17:22,366 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 17:17:22,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 17:17:22,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 05:17:22" (1/1) ... [2023-08-03 17:17:22,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@437304c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:17:22, skipping insertion in model container [2023-08-03 17:17:22,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 05:17:22" (1/1) ... [2023-08-03 17:17:22,406 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 17:17:22,530 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_mix024_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt_bound2.i[986,999] [2023-08-03 17:17:22,698 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 17:17:22,706 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 17:17:22,714 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_mix024_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt_bound2.i[986,999] [2023-08-03 17:17:22,728 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 17:17:22,729 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 17:17:22,761 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 17:17:22,784 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 17:17:22,784 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 17:17:22,788 INFO L206 MainTranslator]: Completed translation [2023-08-03 17:17:22,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:17:22 WrapperNode [2023-08-03 17:17:22,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 17:17:22,791 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 17:17:22,791 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 17:17:22,791 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 17:17:22,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:17:22" (1/1) ... [2023-08-03 17:17:22,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:17:22" (1/1) ... [2023-08-03 17:17:22,845 INFO L138 Inliner]: procedures = 176, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 161 [2023-08-03 17:17:22,845 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 17:17:22,845 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 17:17:22,846 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 17:17:22,846 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 17:17:22,854 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:17:22" (1/1) ... [2023-08-03 17:17:22,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:17:22" (1/1) ... [2023-08-03 17:17:22,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:17:22" (1/1) ... [2023-08-03 17:17:22,862 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:17:22" (1/1) ... [2023-08-03 17:17:22,867 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:17:22" (1/1) ... [2023-08-03 17:17:22,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:17:22" (1/1) ... [2023-08-03 17:17:22,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:17:22" (1/1) ... [2023-08-03 17:17:22,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:17:22" (1/1) ... [2023-08-03 17:17:22,888 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 17:17:22,889 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 17:17:22,889 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 17:17:22,889 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 17:17:22,889 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:17:22" (1/1) ... [2023-08-03 17:17:22,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 17:17:22,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:17:22,910 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 17:17:22,915 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 17:17:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 17:17:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-03 17:17:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 17:17:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 17:17:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 17:17:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-03 17:17:22,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-03 17:17:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-03 17:17:22,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-03 17:17:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-03 17:17:22,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-03 17:17:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 17:17:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-03 17:17:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 17:17:22,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 17:17:22,936 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 17:17:23,022 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 17:17:23,023 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 17:17:23,249 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 17:17:23,380 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 17:17:23,381 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-03 17:17:23,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 05:17:23 BoogieIcfgContainer [2023-08-03 17:17:23,384 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 17:17:23,385 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 17:17:23,386 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 17:17:23,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 17:17:23,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 05:17:22" (1/3) ... [2023-08-03 17:17:23,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b408a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 05:17:23, skipping insertion in model container [2023-08-03 17:17:23,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:17:22" (2/3) ... [2023-08-03 17:17:23,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b408a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 05:17:23, skipping insertion in model container [2023-08-03 17:17:23,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 05:17:23" (3/3) ... [2023-08-03 17:17:23,391 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-wmm_mix024_power.oepc_pso.oepc_rmo.oepc_tso.oepc_tso.opt_bound2.i [2023-08-03 17:17:23,396 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 17:17:23,402 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 17:17:23,402 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-03 17:17:23,402 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 17:17:23,445 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 17:17:23,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 135 transitions, 285 flow [2023-08-03 17:17:23,592 INFO L124 PetriNetUnfolderBase]: 30/457 cut-off events. [2023-08-03 17:17:23,592 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:17:23,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 457 events. 30/457 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2016 event pairs, 0 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 274. Up to 16 conditions per place. [2023-08-03 17:17:23,599 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 135 transitions, 285 flow [2023-08-03 17:17:23,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 135 transitions, 285 flow [2023-08-03 17:17:23,604 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 17:17:23,610 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 135 transitions, 285 flow [2023-08-03 17:17:23,611 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 135 transitions, 285 flow [2023-08-03 17:17:23,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 135 transitions, 285 flow [2023-08-03 17:17:23,666 INFO L124 PetriNetUnfolderBase]: 30/457 cut-off events. [2023-08-03 17:17:23,667 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:17:23,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 457 events. 30/457 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2016 event pairs, 0 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 274. Up to 16 conditions per place. [2023-08-03 17:17:23,671 INFO L119 LiptonReduction]: Number of co-enabled transitions 3172 [2023-08-03 17:17:26,627 INFO L134 LiptonReduction]: Checked pairs total: 8937 [2023-08-03 17:17:26,627 INFO L136 LiptonReduction]: Total number of compositions: 114 [2023-08-03 17:17:26,644 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 17:17:26,651 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;@79359d01, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 17:17:26,651 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-03 17:17:26,654 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 17:17:26,654 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-03 17:17:26,654 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:17:26,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:17:26,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 17:17:26,655 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 17:17:26,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:17:26,659 INFO L85 PathProgramCache]: Analyzing trace with hash 17882887, now seen corresponding path program 1 times [2023-08-03 17:17:26,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:17:26,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407451597] [2023-08-03 17:17:26,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:17:26,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:17:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:17:26,956 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 17:17:26,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:17:26,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407451597] [2023-08-03 17:17:26,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407451597] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:17:26,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:17:26,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 17:17:26,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952218620] [2023-08-03 17:17:26,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:17:26,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:17:26,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:17:26,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:17:26,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:17:26,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 249 [2023-08-03 17:17:26,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 37 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 17:17:26,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:17:26,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 249 [2023-08-03 17:17:26,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:17:27,468 INFO L124 PetriNetUnfolderBase]: 3074/5132 cut-off events. [2023-08-03 17:17:27,468 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-03 17:17:27,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9987 conditions, 5132 events. 3074/5132 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 32957 event pairs, 650 based on Foata normal form. 180/4714 useless extension candidates. Maximal degree in co-relation 8705. Up to 3553 conditions per place. [2023-08-03 17:17:27,489 INFO L140 encePairwiseOnDemand]: 245/249 looper letters, 46 selfloop transitions, 2 changer transitions 4/58 dead transitions. [2023-08-03 17:17:27,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 58 transitions, 241 flow [2023-08-03 17:17:27,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:17:27,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:17:27,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 409 transitions. [2023-08-03 17:17:27,505 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5475234270414994 [2023-08-03 17:17:27,506 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 409 transitions. [2023-08-03 17:17:27,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 409 transitions. [2023-08-03 17:17:27,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:17:27,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 409 transitions. [2023-08-03 17:17:27,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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 17:17:27,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 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 17:17:27,522 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 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 17:17:27,523 INFO L175 Difference]: Start difference. First operand has 43 places, 37 transitions, 89 flow. Second operand 3 states and 409 transitions. [2023-08-03 17:17:27,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 58 transitions, 241 flow [2023-08-03 17:17:27,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 58 transitions, 241 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 17:17:27,528 INFO L231 Difference]: Finished difference. Result has 44 places, 33 transitions, 85 flow [2023-08-03 17:17:27,530 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=44, PETRI_TRANSITIONS=33} [2023-08-03 17:17:27,534 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2023-08-03 17:17:27,534 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 33 transitions, 85 flow [2023-08-03 17:17:27,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 17:17:27,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:17:27,534 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-03 17:17:27,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 17:17:27,535 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-08-03 17:17:27,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:17:27,536 INFO L85 PathProgramCache]: Analyzing trace with hash 5656588, now seen corresponding path program 1 times [2023-08-03 17:17:27,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:17:27,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920395076] [2023-08-03 17:17:27,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:17:27,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:17:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:17:27,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 17:17:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:17:27,601 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 17:17:27,602 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 17:17:27,603 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2023-08-03 17:17:27,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-08-03 17:17:27,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2023-08-03 17:17:27,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-08-03 17:17:27,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2023-08-03 17:17:27,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-08-03 17:17:27,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-03 17:17:27,607 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-03 17:17:27,609 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-03 17:17:27,609 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-03 17:17:27,639 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 17:17:27,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 171 places, 163 transitions, 362 flow [2023-08-03 17:17:27,745 INFO L124 PetriNetUnfolderBase]: 93/1402 cut-off events. [2023-08-03 17:17:27,745 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-03 17:17:27,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1500 conditions, 1402 events. 93/1402 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9717 event pairs, 0 based on Foata normal form. 0/1241 useless extension candidates. Maximal degree in co-relation 1016. Up to 54 conditions per place. [2023-08-03 17:17:27,749 INFO L82 GeneralOperation]: Start removeDead. Operand has 171 places, 163 transitions, 362 flow [2023-08-03 17:17:27,753 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 171 places, 163 transitions, 362 flow [2023-08-03 17:17:27,753 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 17:17:27,753 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 171 places, 163 transitions, 362 flow [2023-08-03 17:17:27,753 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 171 places, 163 transitions, 362 flow [2023-08-03 17:17:27,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 171 places, 163 transitions, 362 flow [2023-08-03 17:17:27,864 INFO L124 PetriNetUnfolderBase]: 93/1402 cut-off events. [2023-08-03 17:17:27,865 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-03 17:17:27,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1500 conditions, 1402 events. 93/1402 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9717 event pairs, 0 based on Foata normal form. 0/1241 useless extension candidates. Maximal degree in co-relation 1016. Up to 54 conditions per place. [2023-08-03 17:17:27,887 INFO L119 LiptonReduction]: Number of co-enabled transitions 7752 [2023-08-03 17:17:30,678 INFO L134 LiptonReduction]: Checked pairs total: 29669 [2023-08-03 17:17:30,679 INFO L136 LiptonReduction]: Total number of compositions: 120 [2023-08-03 17:17:30,683 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 17:17:30,688 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;@79359d01, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 17:17:30,688 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-03 17:17:30,691 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 17:17:30,691 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2023-08-03 17:17:30,691 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:17:30,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:17:30,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 17:17:30,692 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 17:17:30,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:17:30,692 INFO L85 PathProgramCache]: Analyzing trace with hash 27455545, now seen corresponding path program 1 times [2023-08-03 17:17:30,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:17:30,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420187660] [2023-08-03 17:17:30,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:17:30,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:17:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:17:30,778 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 17:17:30,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:17:30,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420187660] [2023-08-03 17:17:30,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420187660] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:17:30,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:17:30,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 17:17:30,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181621704] [2023-08-03 17:17:30,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:17:30,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:17:30,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:17:30,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:17:30,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:17:30,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 283 [2023-08-03 17:17:30,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 60 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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 17:17:30,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:17:30,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 283 [2023-08-03 17:17:30,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:18:41,359 INFO L124 PetriNetUnfolderBase]: 633758/884884 cut-off events. [2023-08-03 17:18:41,359 INFO L125 PetriNetUnfolderBase]: For 9470/9470 co-relation queries the response was YES. [2023-08-03 17:18:43,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1688243 conditions, 884884 events. 633758/884884 cut-off events. For 9470/9470 co-relation queries the response was YES. Maximal size of possible extension queue 23050. Compared 7721575 event pairs, 105182 based on Foata normal form. 17577/787992 useless extension candidates. Maximal degree in co-relation 1418113. Up to 729279 conditions per place. [2023-08-03 17:18:46,072 INFO L140 encePairwiseOnDemand]: 277/283 looper letters, 75 selfloop transitions, 3 changer transitions 0/94 dead transitions. [2023-08-03 17:18:46,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 94 transitions, 401 flow [2023-08-03 17:18:46,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:18:46,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:18:46,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 493 transitions. [2023-08-03 17:18:46,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5806831566548881 [2023-08-03 17:18:46,075 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 493 transitions. [2023-08-03 17:18:46,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 493 transitions. [2023-08-03 17:18:46,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:18:46,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 493 transitions. [2023-08-03 17:18:46,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 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 17:18:46,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 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 17:18:46,078 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 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 17:18:46,078 INFO L175 Difference]: Start difference. First operand has 72 places, 60 transitions, 156 flow. Second operand 3 states and 493 transitions. [2023-08-03 17:18:46,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 94 transitions, 401 flow [2023-08-03 17:18:46,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 94 transitions, 395 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-03 17:18:46,093 INFO L231 Difference]: Finished difference. Result has 75 places, 61 transitions, 169 flow [2023-08-03 17:18:46,093 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=169, PETRI_PLACES=75, PETRI_TRANSITIONS=61} [2023-08-03 17:18:46,094 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 3 predicate places. [2023-08-03 17:18:46,094 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 61 transitions, 169 flow [2023-08-03 17:18:46,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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 17:18:46,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:18:46,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-03 17:18:46,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-03 17:18:46,094 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 17:18:46,095 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:18:46,095 INFO L85 PathProgramCache]: Analyzing trace with hash -2120228506, now seen corresponding path program 1 times [2023-08-03 17:18:46,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:18:46,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865729348] [2023-08-03 17:18:46,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:18:46,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:18:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:18:46,121 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 17:18:46,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:18:46,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865729348] [2023-08-03 17:18:46,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865729348] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:18:46,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:18:46,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 17:18:46,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383279383] [2023-08-03 17:18:46,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:18:46,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:18:46,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:18:46,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:18:46,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:18:46,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 283 [2023-08-03 17:18:46,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 61 transitions, 169 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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 17:18:46,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:18:46,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 283 [2023-08-03 17:18:46,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:19:52,193 INFO L124 PetriNetUnfolderBase]: 618374/797207 cut-off events. [2023-08-03 17:19:52,193 INFO L125 PetriNetUnfolderBase]: For 61912/61912 co-relation queries the response was YES. [2023-08-03 17:19:54,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1685619 conditions, 797207 events. 618374/797207 cut-off events. For 61912/61912 co-relation queries the response was YES. Maximal size of possible extension queue 24623. Compared 5841094 event pairs, 588858 based on Foata normal form. 0/699580 useless extension candidates. Maximal degree in co-relation 1109922. Up to 771849 conditions per place. [2023-08-03 17:19:56,920 INFO L140 encePairwiseOnDemand]: 280/283 looper letters, 48 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2023-08-03 17:19:56,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 66 transitions, 282 flow [2023-08-03 17:19:56,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:19:56,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:19:56,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 451 transitions. [2023-08-03 17:19:56,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5312131919905771 [2023-08-03 17:19:56,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 451 transitions. [2023-08-03 17:19:56,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 451 transitions. [2023-08-03 17:19:56,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:19:56,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 451 transitions. [2023-08-03 17:19:56,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 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 17:19:56,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 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 17:19:56,925 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 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 17:19:56,925 INFO L175 Difference]: Start difference. First operand has 75 places, 61 transitions, 169 flow. Second operand 3 states and 451 transitions. [2023-08-03 17:19:56,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 66 transitions, 282 flow [2023-08-03 17:19:56,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 66 transitions, 278 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 17:19:56,943 INFO L231 Difference]: Finished difference. Result has 77 places, 62 transitions, 178 flow [2023-08-03 17:19:56,943 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=77, PETRI_TRANSITIONS=62} [2023-08-03 17:19:56,943 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 5 predicate places. [2023-08-03 17:19:56,944 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 62 transitions, 178 flow [2023-08-03 17:19:56,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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 17:19:56,944 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:19:56,944 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 17:19:56,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-03 17:19:56,944 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 17:19:56,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:19:56,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1500770491, now seen corresponding path program 1 times [2023-08-03 17:19:56,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:19:56,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63789665] [2023-08-03 17:19:56,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:19:56,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:19:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:19:56,956 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 17:19:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:19:56,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 17:19:56,968 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 17:19:56,968 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-08-03 17:19:56,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-08-03 17:19:56,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-08-03 17:19:56,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-03 17:19:56,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-08-03 17:19:56,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2023-08-03 17:19:56,974 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-08-03 17:19:56,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-03 17:19:56,975 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-03 17:19:56,978 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-03 17:19:56,978 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 17:19:57,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 05:19:57 BasicIcfg [2023-08-03 17:19:57,023 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 17:19:57,026 INFO L158 Benchmark]: Toolchain (without parser) took 154658.44ms. Allocated memory was 356.5MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 320.1MB in the beginning and 9.1GB in the end (delta: -8.8GB). Peak memory consumption was 6.9GB. Max. memory is 16.0GB. [2023-08-03 17:19:57,027 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 356.5MB. Free memory is still 313.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 17:19:57,028 INFO L158 Benchmark]: CACSL2BoogieTranslator took 424.46ms. Allocated memory is still 356.5MB. Free memory was 320.1MB in the beginning and 295.5MB in the end (delta: 24.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-03 17:19:57,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.02ms. Allocated memory is still 356.5MB. Free memory was 295.5MB in the beginning and 292.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-03 17:19:57,030 INFO L158 Benchmark]: Boogie Preprocessor took 42.81ms. Allocated memory is still 356.5MB. Free memory was 292.9MB in the beginning and 290.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 17:19:57,031 INFO L158 Benchmark]: RCFGBuilder took 494.93ms. Allocated memory was 356.5MB in the beginning and 467.7MB in the end (delta: 111.1MB). Free memory was 290.8MB in the beginning and 434.6MB in the end (delta: -143.9MB). Peak memory consumption was 43.2MB. Max. memory is 16.0GB. [2023-08-03 17:19:57,032 INFO L158 Benchmark]: TraceAbstraction took 153637.89ms. Allocated memory was 467.7MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 433.6MB in the beginning and 9.1GB in the end (delta: -8.7GB). Peak memory consumption was 6.9GB. Max. memory is 16.0GB. [2023-08-03 17:19:57,035 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 356.5MB. Free memory is still 313.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 424.46ms. Allocated memory is still 356.5MB. Free memory was 320.1MB in the beginning and 295.5MB in the end (delta: 24.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 54.02ms. Allocated memory is still 356.5MB. Free memory was 295.5MB in the beginning and 292.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 42.81ms. Allocated memory is still 356.5MB. Free memory was 292.9MB in the beginning and 290.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 494.93ms. Allocated memory was 356.5MB in the beginning and 467.7MB in the end (delta: 111.1MB). Free memory was 290.8MB in the beginning and 434.6MB in the end (delta: -143.9MB). Peak memory consumption was 43.2MB. Max. memory is 16.0GB. * TraceAbstraction took 153637.89ms. Allocated memory was 467.7MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 433.6MB in the beginning and 9.1GB in the end (delta: -8.7GB). Peak memory consumption was 6.9GB. 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: 3.0s, 137 PlacesBefore, 43 PlacesAfterwards, 135 TransitionsBefore, 37 TransitionsAfterwards, 3172 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 4 ChoiceCompositions, 114 TotalNumberOfCompositions, 8937 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4701, independent: 4481, independent conditional: 0, independent unconditional: 4481, dependent: 220, dependent conditional: 0, dependent unconditional: 220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1677, independent: 1648, independent conditional: 0, independent unconditional: 1648, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4701, independent: 2833, independent conditional: 0, independent unconditional: 2833, dependent: 191, dependent conditional: 0, dependent unconditional: 191, unknown: 1677, unknown conditional: 0, unknown unconditional: 1677] , Statistics on independence cache: Total cache size (in pairs): 202, Positive cache size: 186, Positive conditional cache size: 0, Positive unconditional cache size: 186, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 171 PlacesBefore, 72 PlacesAfterwards, 163 TransitionsBefore, 60 TransitionsAfterwards, 7752 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 4 ChoiceCompositions, 120 TotalNumberOfCompositions, 29669 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10576, independent: 10145, independent conditional: 0, independent unconditional: 10145, dependent: 431, dependent conditional: 0, dependent unconditional: 431, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3741, independent: 3671, independent conditional: 0, independent unconditional: 3671, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10576, independent: 6474, independent conditional: 0, independent unconditional: 6474, dependent: 361, dependent conditional: 0, dependent unconditional: 361, unknown: 3741, unknown conditional: 0, unknown unconditional: 3741] , Statistics on independence cache: Total cache size (in pairs): 481, Positive cache size: 445, Positive conditional cache size: 0, Positive unconditional cache size: 445, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, 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_p0_EAX = 0; [L713] 0 int __unbuffered_p0_EBX = 0; [L715] 0 int __unbuffered_p2_EAX = 0; [L717] 0 int __unbuffered_p2_EBX = 0; [L719] 0 int a = 0; [L720] 0 _Bool a$flush_delayed; [L721] 0 int a$mem_tmp; [L722] 0 _Bool a$r_buff0_thd0; [L723] 0 _Bool a$r_buff0_thd1; [L724] 0 _Bool a$r_buff0_thd2; [L725] 0 _Bool a$r_buff0_thd3; [L726] 0 _Bool a$r_buff1_thd0; [L727] 0 _Bool a$r_buff1_thd1; [L728] 0 _Bool a$r_buff1_thd2; [L729] 0 _Bool a$r_buff1_thd3; [L730] 0 _Bool a$read_delayed; [L731] 0 int *a$read_delayed_var; [L732] 0 int a$w_buff0; [L733] 0 _Bool a$w_buff0_used; [L734] 0 int a$w_buff1; [L735] 0 _Bool a$w_buff1_used; [L736] 0 _Bool main$tmp_guard0; [L737] 0 _Bool main$tmp_guard1; [L739] 0 int x = 0; [L741] 0 int y = 0; [L743] 0 int z = 0; [L744] 0 _Bool weak$$choice0; [L745] 0 _Bool weak$$choice2; [L848] 0 pthread_t t633[2]; [L849] 0 int asdf=0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=0, asdf=0, main$tmp_guard0=0, main$tmp_guard1=0, t633={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L849] COND TRUE 0 asdf<2 [L849] FCALL, FORK 0 pthread_create(&t633[asdf], ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=0, asdf=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t633[asdf], ((void *)0), P0, ((void *)0))=-1, t633={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L749] 1 a$w_buff1 = a$w_buff0 [L750] 1 a$w_buff0 = 1 [L751] 1 a$w_buff1_used = a$w_buff0_used [L752] 1 a$w_buff0_used = (_Bool)1 [L753] CALL 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L753] RET 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L754] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L755] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L756] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L757] 1 a$r_buff1_thd3 = a$r_buff0_thd3 [L758] 1 a$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L849] 0 asdf++ VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, asdf=1, main$tmp_guard0=0, main$tmp_guard1=0, t633={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L849] COND TRUE 0 asdf<2 [L849] FCALL, FORK 0 pthread_create(&t633[asdf], ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, asdf=1, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t633[asdf], ((void *)0), P0, ((void *)0))=0, t633={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L749] 2 a$w_buff1 = a$w_buff0 [L750] 2 a$w_buff0 = 1 [L751] 2 a$w_buff1_used = a$w_buff0_used [L752] 2 a$w_buff0_used = (_Bool)1 [L753] CALL 2 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND TRUE 2 !expression [L18] 2 reach_error() VAL [\old(expression)=1, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=1, a$w_buff1_used=1, a=0, expression=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, 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: 849]: 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: 853]: 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: 851]: 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, 159 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: 4.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 1 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 10 procedures, 187 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: 149.3s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 146.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 180 IncrementalHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 1 mSDtfsCounter, 180 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=178occurred 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, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 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 17:19:57,059 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...