/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_mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 17:05:16,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 17:05:17,018 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 17:05:17,023 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 17:05:17,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 17:05:17,024 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 17:05:17,024 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 17:05:17,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 17:05:17,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 17:05:17,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 17:05:17,056 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 17:05:17,056 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 17:05:17,057 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 17:05:17,058 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 17:05:17,058 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 17:05:17,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 17:05:17,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 17:05:17,059 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 17:05:17,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 17:05:17,059 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 17:05:17,059 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 17:05:17,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 17:05:17,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 17:05:17,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 17:05:17,060 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 17:05:17,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 17:05:17,061 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 17:05:17,062 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 17:05:17,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 17:05:17,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 17:05:17,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 17:05:17,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 17:05:17,063 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 17:05:17,064 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 17:05:17,064 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 17:05:17,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 17:05:17,064 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 17:05:17,064 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 17:05:17,064 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 17:05:17,065 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 17:05:17,065 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 17:05:17,065 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 17:05:17,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 17:05:17,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 17:05:17,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 17:05:17,282 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 17:05:17,283 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 17:05:17,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc_bound2.i [2023-08-03 17:05:18,492 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 17:05:18,689 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 17:05:18,690 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc_bound2.i [2023-08-03 17:05:18,704 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b453a61fe/c807a00723584262b7e58cb0b915d484/FLAG9f744a7e9 [2023-08-03 17:05:18,717 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b453a61fe/c807a00723584262b7e58cb0b915d484 [2023-08-03 17:05:18,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 17:05:18,721 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 17:05:18,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 17:05:18,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 17:05:18,727 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 17:05:18,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 05:05:18" (1/1) ... [2023-08-03 17:05:18,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1191b481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:05:18, skipping insertion in model container [2023-08-03 17:05:18,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 05:05:18" (1/1) ... [2023-08-03 17:05:18,772 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 17:05:18,912 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_mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc_bound2.i[996,1009] [2023-08-03 17:05:19,109 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 17:05:19,120 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 17:05:19,132 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_mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc_bound2.i[996,1009] [2023-08-03 17:05:19,150 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 17:05:19,156 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 17:05:19,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 17:05:19,219 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 17:05:19,219 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 17:05:19,224 INFO L206 MainTranslator]: Completed translation [2023-08-03 17:05:19,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:05:19 WrapperNode [2023-08-03 17:05:19,225 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 17:05:19,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 17:05:19,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 17:05:19,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 17:05:19,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:05:19" (1/1) ... [2023-08-03 17:05:19,246 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:05:19" (1/1) ... [2023-08-03 17:05:19,270 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 130 [2023-08-03 17:05:19,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 17:05:19,271 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 17:05:19,271 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 17:05:19,271 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 17:05:19,279 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:05:19" (1/1) ... [2023-08-03 17:05:19,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:05:19" (1/1) ... [2023-08-03 17:05:19,288 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:05:19" (1/1) ... [2023-08-03 17:05:19,288 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:05:19" (1/1) ... [2023-08-03 17:05:19,296 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:05:19" (1/1) ... [2023-08-03 17:05:19,299 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:05:19" (1/1) ... [2023-08-03 17:05:19,301 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:05:19" (1/1) ... [2023-08-03 17:05:19,302 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:05:19" (1/1) ... [2023-08-03 17:05:19,305 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 17:05:19,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 17:05:19,306 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 17:05:19,306 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 17:05:19,307 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:05:19" (1/1) ... [2023-08-03 17:05:19,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 17:05:19,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:05:19,336 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 17:05:19,349 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 17:05:19,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 17:05:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-03 17:05:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 17:05:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 17:05:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 17:05:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-03 17:05:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-03 17:05:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-03 17:05:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-03 17:05:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 17:05:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-03 17:05:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 17:05:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 17:05:19,378 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 17:05:19,485 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 17:05:19,487 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 17:05:19,767 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 17:05:19,855 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 17:05:19,855 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-03 17:05:19,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 05:05:19 BoogieIcfgContainer [2023-08-03 17:05:19,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 17:05:19,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 17:05:19,865 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 17:05:19,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 17:05:19,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 05:05:18" (1/3) ... [2023-08-03 17:05:19,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a706a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 05:05:19, skipping insertion in model container [2023-08-03 17:05:19,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:05:19" (2/3) ... [2023-08-03 17:05:19,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a706a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 05:05:19, skipping insertion in model container [2023-08-03 17:05:19,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 05:05:19" (3/3) ... [2023-08-03 17:05:19,873 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-wmm_mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc_bound2.i [2023-08-03 17:05:19,881 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 17:05:19,890 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 17:05:19,890 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-03 17:05:19,891 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 17:05:19,949 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 17:05:19,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 104 transitions, 218 flow [2023-08-03 17:05:20,085 INFO L124 PetriNetUnfolderBase]: 14/220 cut-off events. [2023-08-03 17:05:20,085 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:05:20,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 220 events. 14/220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 606 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 131. Up to 8 conditions per place. [2023-08-03 17:05:20,091 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 104 transitions, 218 flow [2023-08-03 17:05:20,096 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 104 transitions, 218 flow [2023-08-03 17:05:20,099 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 17:05:20,107 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 104 transitions, 218 flow [2023-08-03 17:05:20,110 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 104 transitions, 218 flow [2023-08-03 17:05:20,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 104 transitions, 218 flow [2023-08-03 17:05:20,148 INFO L124 PetriNetUnfolderBase]: 14/220 cut-off events. [2023-08-03 17:05:20,148 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:05:20,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 220 events. 14/220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 606 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 131. Up to 8 conditions per place. [2023-08-03 17:05:20,151 INFO L119 LiptonReduction]: Number of co-enabled transitions 1552 [2023-08-03 17:05:23,079 INFO L134 LiptonReduction]: Checked pairs total: 4084 [2023-08-03 17:05:23,079 INFO L136 LiptonReduction]: Total number of compositions: 94 [2023-08-03 17:05:23,091 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 17:05:23,096 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;@51194fc7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 17:05:23,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-03 17:05:23,101 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 17:05:23,101 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2023-08-03 17:05:23,101 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:05:23,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:05:23,102 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 17:05:23,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 17:05:23,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:05:23,107 INFO L85 PathProgramCache]: Analyzing trace with hash 14465564, now seen corresponding path program 1 times [2023-08-03 17:05:23,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:05:23,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154873174] [2023-08-03 17:05:23,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:05:23,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:05:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:05:23,462 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 17:05:23,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:05:23,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154873174] [2023-08-03 17:05:23,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154873174] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:05:23,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:05:23,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 17:05:23,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004894209] [2023-08-03 17:05:23,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:05:23,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:05:23,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:05:23,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:05:23,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:05:23,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 198 [2023-08-03 17:05:23,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 17:05:23,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:05:23,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 198 [2023-08-03 17:05:23,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:05:23,714 INFO L124 PetriNetUnfolderBase]: 249/525 cut-off events. [2023-08-03 17:05:23,714 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-03 17:05:23,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1012 conditions, 525 events. 249/525 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2553 event pairs, 48 based on Foata normal form. 0/456 useless extension candidates. Maximal degree in co-relation 859. Up to 334 conditions per place. [2023-08-03 17:05:23,724 INFO L140 encePairwiseOnDemand]: 194/198 looper letters, 29 selfloop transitions, 2 changer transitions 2/37 dead transitions. [2023-08-03 17:05:23,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 37 transitions, 153 flow [2023-08-03 17:05:23,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:05:23,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:05:23,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2023-08-03 17:05:23,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5151515151515151 [2023-08-03 17:05:23,745 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2023-08-03 17:05:23,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2023-08-03 17:05:23,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:05:23,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2023-08-03 17:05:23,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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 17:05:23,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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 17:05:23,760 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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 17:05:23,762 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 60 flow. Second operand 3 states and 306 transitions. [2023-08-03 17:05:23,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 37 transitions, 153 flow [2023-08-03 17:05:23,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 37 transitions, 153 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 17:05:23,766 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 58 flow [2023-08-03 17:05:23,768 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2023-08-03 17:05:23,771 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2023-08-03 17:05:23,772 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 58 flow [2023-08-03 17:05:23,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 17:05:23,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:05:23,772 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-03 17:05:23,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 17:05:23,773 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 17:05:23,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:05:23,782 INFO L85 PathProgramCache]: Analyzing trace with hash 448715202, now seen corresponding path program 1 times [2023-08-03 17:05:23,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:05:23,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853940092] [2023-08-03 17:05:23,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:05:23,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:05:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:05:23,849 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 17:05:23,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:05:23,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853940092] [2023-08-03 17:05:23,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853940092] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:05:23,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:05:23,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 17:05:23,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393895368] [2023-08-03 17:05:23,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:05:23,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:05:23,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:05:23,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:05:23,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:05:23,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 198 [2023-08-03 17:05:23,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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 17:05:23,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:05:23,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 198 [2023-08-03 17:05:23,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:05:23,943 INFO L124 PetriNetUnfolderBase]: 191/372 cut-off events. [2023-08-03 17:05:23,943 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-08-03 17:05:23,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 777 conditions, 372 events. 191/372 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1529 event pairs, 152 based on Foata normal form. 0/340 useless extension candidates. Maximal degree in co-relation 759. Up to 340 conditions per place. [2023-08-03 17:05:23,945 INFO L140 encePairwiseOnDemand]: 195/198 looper letters, 20 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2023-08-03 17:05:23,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 112 flow [2023-08-03 17:05:23,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:05:23,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:05:23,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2023-08-03 17:05:23,947 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4781144781144781 [2023-08-03 17:05:23,947 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 284 transitions. [2023-08-03 17:05:23,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 284 transitions. [2023-08-03 17:05:23,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:05:23,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 284 transitions. [2023-08-03 17:05:23,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 17:05:23,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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 17:05:23,950 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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 17:05:23,950 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 58 flow. Second operand 3 states and 284 transitions. [2023-08-03 17:05:23,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 112 flow [2023-08-03 17:05:23,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 26 transitions, 106 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-03 17:05:23,952 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 62 flow [2023-08-03 17:05:23,952 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2023-08-03 17:05:23,953 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2023-08-03 17:05:23,953 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 62 flow [2023-08-03 17:05:23,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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 17:05:23,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:05:23,953 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-03 17:05:23,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-03 17:05:23,954 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 17:05:23,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:05:23,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1016561387, now seen corresponding path program 1 times [2023-08-03 17:05:23,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:05:23,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028711885] [2023-08-03 17:05:23,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:05:23,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:05:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:05:23,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 17:05:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:05:23,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 17:05:23,988 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 17:05:23,989 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2023-08-03 17:05:23,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-08-03 17:05:23,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2023-08-03 17:05:23,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-08-03 17:05:23,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-08-03 17:05:23,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-03 17:05:23,991 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-03 17:05:23,993 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-03 17:05:23,993 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-03 17:05:24,015 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 17:05:24,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 122 transitions, 268 flow [2023-08-03 17:05:24,058 INFO L124 PetriNetUnfolderBase]: 30/454 cut-off events. [2023-08-03 17:05:24,058 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-03 17:05:24,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 454 events. 30/454 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1884 event pairs, 0 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 329. Up to 18 conditions per place. [2023-08-03 17:05:24,060 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 122 transitions, 268 flow [2023-08-03 17:05:24,062 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 122 transitions, 268 flow [2023-08-03 17:05:24,062 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 17:05:24,062 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 122 transitions, 268 flow [2023-08-03 17:05:24,062 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 122 transitions, 268 flow [2023-08-03 17:05:24,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 122 transitions, 268 flow [2023-08-03 17:05:24,104 INFO L124 PetriNetUnfolderBase]: 30/454 cut-off events. [2023-08-03 17:05:24,104 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-03 17:05:24,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 454 events. 30/454 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1884 event pairs, 0 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 329. Up to 18 conditions per place. [2023-08-03 17:05:24,111 INFO L119 LiptonReduction]: Number of co-enabled transitions 3680 [2023-08-03 17:05:26,981 INFO L134 LiptonReduction]: Checked pairs total: 11267 [2023-08-03 17:05:26,981 INFO L136 LiptonReduction]: Total number of compositions: 99 [2023-08-03 17:05:26,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 17:05:26,984 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;@51194fc7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 17:05:26,984 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-03 17:05:26,986 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 17:05:26,987 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2023-08-03 17:05:26,987 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:05:26,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:05:26,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 17:05:26,987 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 17:05:26,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:05:26,988 INFO L85 PathProgramCache]: Analyzing trace with hash 21858317, now seen corresponding path program 1 times [2023-08-03 17:05:26,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:05:26,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003161839] [2023-08-03 17:05:26,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:05:26,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:05:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:05:27,090 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 17:05:27,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:05:27,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003161839] [2023-08-03 17:05:27,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003161839] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:05:27,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:05:27,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 17:05:27,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544315709] [2023-08-03 17:05:27,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:05:27,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:05:27,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:05:27,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:05:27,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:05:27,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 221 [2023-08-03 17:05:27,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 17:05:27,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:05:27,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 221 [2023-08-03 17:05:27,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:05:29,724 INFO L124 PetriNetUnfolderBase]: 15750/23096 cut-off events. [2023-08-03 17:05:29,725 INFO L125 PetriNetUnfolderBase]: For 443/443 co-relation queries the response was YES. [2023-08-03 17:05:29,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45257 conditions, 23096 events. 15750/23096 cut-off events. For 443/443 co-relation queries the response was YES. Maximal size of possible extension queue 874. Compared 152217 event pairs, 3063 based on Foata normal form. 0/19805 useless extension candidates. Maximal degree in co-relation 38494. Up to 20155 conditions per place. [2023-08-03 17:05:29,957 INFO L140 encePairwiseOnDemand]: 215/221 looper letters, 49 selfloop transitions, 3 changer transitions 0/60 dead transitions. [2023-08-03 17:05:29,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 60 transitions, 261 flow [2023-08-03 17:05:29,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:05:29,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:05:29,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 359 transitions. [2023-08-03 17:05:29,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5414781297134238 [2023-08-03 17:05:29,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 359 transitions. [2023-08-03 17:05:29,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 359 transitions. [2023-08-03 17:05:29,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:05:29,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 359 transitions. [2023-08-03 17:05:29,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 17:05:29,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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 17:05:29,964 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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 17:05:29,964 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 102 flow. Second operand 3 states and 359 transitions. [2023-08-03 17:05:29,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 60 transitions, 261 flow [2023-08-03 17:05:29,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 60 transitions, 257 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-08-03 17:05:29,967 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 117 flow [2023-08-03 17:05:29,967 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2023-08-03 17:05:29,969 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 3 predicate places. [2023-08-03 17:05:29,969 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 117 flow [2023-08-03 17:05:29,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 17:05:29,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:05:29,970 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-03 17:05:29,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-03 17:05:29,970 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-08-03 17:05:29,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:05:29,971 INFO L85 PathProgramCache]: Analyzing trace with hash 677777202, now seen corresponding path program 1 times [2023-08-03 17:05:29,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:05:29,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956965203] [2023-08-03 17:05:29,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:05:29,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:05:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:05:30,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 17:05:30,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:05:30,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956965203] [2023-08-03 17:05:30,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956965203] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:05:30,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:05:30,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 17:05:30,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160404363] [2023-08-03 17:05:30,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:05:30,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:05:30,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:05:30,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:05:30,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:05:30,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 221 [2023-08-03 17:05:30,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 17:05:30,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:05:30,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 221 [2023-08-03 17:05:30,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:05:32,418 INFO L124 PetriNetUnfolderBase]: 15466/22207 cut-off events. [2023-08-03 17:05:32,419 INFO L125 PetriNetUnfolderBase]: For 2350/2350 co-relation queries the response was YES. [2023-08-03 17:05:32,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47858 conditions, 22207 events. 15466/22207 cut-off events. For 2350/2350 co-relation queries the response was YES. Maximal size of possible extension queue 835. Compared 137744 event pairs, 11746 based on Foata normal form. 0/18973 useless extension candidates. Maximal degree in co-relation 31013. Up to 21157 conditions per place. [2023-08-03 17:05:32,557 INFO L140 encePairwiseOnDemand]: 218/221 looper letters, 35 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2023-08-03 17:05:32,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 45 transitions, 204 flow [2023-08-03 17:05:32,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:05:32,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:05:32,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2023-08-03 17:05:32,559 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.497737556561086 [2023-08-03 17:05:32,559 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 330 transitions. [2023-08-03 17:05:32,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 330 transitions. [2023-08-03 17:05:32,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:05:32,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 330 transitions. [2023-08-03 17:05:32,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 17:05:32,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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 17:05:32,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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 17:05:32,562 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 117 flow. Second operand 3 states and 330 transitions. [2023-08-03 17:05:32,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 45 transitions, 204 flow [2023-08-03 17:05:32,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 45 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 17:05:32,566 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 126 flow [2023-08-03 17:05:32,567 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2023-08-03 17:05:32,568 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 5 predicate places. [2023-08-03 17:05:32,568 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 126 flow [2023-08-03 17:05:32,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 17:05:32,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:05:32,569 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 17:05:32,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-03 17:05:32,569 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-08-03 17:05:32,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:05:32,570 INFO L85 PathProgramCache]: Analyzing trace with hash 263725706, now seen corresponding path program 1 times [2023-08-03 17:05:32,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:05:32,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929389076] [2023-08-03 17:05:32,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:05:32,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:05:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:05:32,587 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 17:05:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:05:32,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 17:05:32,619 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 17:05:32,620 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2023-08-03 17:05:32,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-08-03 17:05:32,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2023-08-03 17:05:32,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-08-03 17:05:32,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2023-08-03 17:05:32,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-08-03 17:05:32,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-03 17:05:32,621 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-03 17:05:32,624 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-03 17:05:32,625 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 17:05:32,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 05:05:32 BasicIcfg [2023-08-03 17:05:32,683 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 17:05:32,683 INFO L158 Benchmark]: Toolchain (without parser) took 13962.85ms. Allocated memory was 343.9MB in the beginning and 882.9MB in the end (delta: 539.0MB). Free memory was 293.4MB in the beginning and 240.4MB in the end (delta: 52.9MB). Peak memory consumption was 594.8MB. Max. memory is 16.0GB. [2023-08-03 17:05:32,683 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 343.9MB. Free memory is still 297.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 17:05:32,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 503.32ms. Allocated memory is still 343.9MB. Free memory was 293.4MB in the beginning and 270.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-03 17:05:32,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.55ms. Allocated memory is still 343.9MB. Free memory was 270.3MB in the beginning and 267.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 17:05:32,684 INFO L158 Benchmark]: Boogie Preprocessor took 34.30ms. Allocated memory is still 343.9MB. Free memory was 267.9MB in the beginning and 266.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 17:05:32,684 INFO L158 Benchmark]: RCFGBuilder took 552.06ms. Allocated memory was 343.9MB in the beginning and 486.5MB in the end (delta: 142.6MB). Free memory was 266.2MB in the beginning and 432.0MB in the end (delta: -165.8MB). Peak memory consumption was 23.6MB. Max. memory is 16.0GB. [2023-08-03 17:05:32,685 INFO L158 Benchmark]: TraceAbstraction took 12818.67ms. Allocated memory was 486.5MB in the beginning and 882.9MB in the end (delta: 396.4MB). Free memory was 431.0MB in the beginning and 240.4MB in the end (delta: 190.5MB). Peak memory consumption was 585.8MB. Max. memory is 16.0GB. [2023-08-03 17:05:32,686 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 343.9MB. Free memory is still 297.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 503.32ms. Allocated memory is still 343.9MB. Free memory was 293.4MB in the beginning and 270.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 44.55ms. Allocated memory is still 343.9MB. Free memory was 270.3MB in the beginning and 267.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.30ms. Allocated memory is still 343.9MB. Free memory was 267.9MB in the beginning and 266.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 552.06ms. Allocated memory was 343.9MB in the beginning and 486.5MB in the end (delta: 142.6MB). Free memory was 266.2MB in the beginning and 432.0MB in the end (delta: -165.8MB). Peak memory consumption was 23.6MB. Max. memory is 16.0GB. * TraceAbstraction took 12818.67ms. Allocated memory was 486.5MB in the beginning and 882.9MB in the end (delta: 396.4MB). Free memory was 431.0MB in the beginning and 240.4MB in the end (delta: 190.5MB). Peak memory consumption was 585.8MB. 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, 105 PlacesBefore, 29 PlacesAfterwards, 104 TransitionsBefore, 25 TransitionsAfterwards, 1552 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 3 ChoiceCompositions, 94 TotalNumberOfCompositions, 4084 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1979, independent: 1843, independent conditional: 0, independent unconditional: 1843, dependent: 136, dependent conditional: 0, dependent unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 849, independent: 813, independent conditional: 0, independent unconditional: 813, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1979, independent: 1030, independent conditional: 0, independent unconditional: 1030, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 849, unknown conditional: 0, unknown unconditional: 849] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 127 PlacesBefore, 47 PlacesAfterwards, 122 TransitionsBefore, 39 TransitionsAfterwards, 3680 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 3 ChoiceCompositions, 99 TotalNumberOfCompositions, 11267 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4767, independent: 4533, independent conditional: 0, independent unconditional: 4533, dependent: 234, dependent conditional: 0, dependent unconditional: 234, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1924, independent: 1872, independent conditional: 0, independent unconditional: 1872, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4767, independent: 2661, independent conditional: 0, independent unconditional: 2661, dependent: 182, dependent conditional: 0, dependent unconditional: 182, unknown: 1924, unknown conditional: 0, unknown unconditional: 1924] , Statistics on independence cache: Total cache size (in pairs): 224, Positive cache size: 199, Positive conditional cache size: 0, Positive unconditional cache size: 199, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, 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: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p0_EAX = 0; [L712] 0 int __unbuffered_p1_EAX = 0; [L714] 0 int __unbuffered_p1_EBX = 0; [L715] 0 _Bool main$tmp_guard0; [L716] 0 _Bool main$tmp_guard1; [L718] 0 int x = 0; [L720] 0 int y = 0; [L721] 0 _Bool y$flush_delayed; [L722] 0 int y$mem_tmp; [L723] 0 _Bool y$r_buff0_thd0; [L724] 0 _Bool y$r_buff0_thd1; [L725] 0 _Bool y$r_buff0_thd2; [L726] 0 _Bool y$r_buff1_thd0; [L727] 0 _Bool y$r_buff1_thd1; [L728] 0 _Bool y$r_buff1_thd2; [L729] 0 _Bool y$read_delayed; [L730] 0 int *y$read_delayed_var; [L731] 0 int y$w_buff0; [L732] 0 _Bool y$w_buff0_used; [L733] 0 int y$w_buff1; [L734] 0 _Bool y$w_buff1_used; [L735] 0 _Bool weak$$choice0; [L736] 0 _Bool weak$$choice2; [L812] 0 pthread_t t305[2]; [L813] 0 int asdf=0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, asdf=0, main$tmp_guard0=0, main$tmp_guard1=0, t305={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L813] COND TRUE 0 asdf<2 [L813] FCALL, FORK 0 pthread_create(&t305[asdf], ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, asdf=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t305[asdf], ((void *)0), P0, ((void *)0))=-2, t305={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L740] 1 y$w_buff1 = y$w_buff0 [L741] 1 y$w_buff0 = 1 [L742] 1 y$w_buff1_used = y$w_buff0_used [L743] 1 y$w_buff0_used = (_Bool)1 [L744] CALL 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L744] RET 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L745] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L746] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L747] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L748] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L813] 0 asdf++ VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, asdf=1, main$tmp_guard0=0, main$tmp_guard1=0, t305={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L813] COND TRUE 0 asdf<2 [L813] FCALL, FORK 0 pthread_create(&t305[asdf], ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, asdf=1, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t305[asdf], ((void *)0), P0, ((void *)0))=-1, t305={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L740] 2 y$w_buff1 = y$w_buff0 [L741] 2 y$w_buff0 = 1 [L742] 2 y$w_buff1_used = y$w_buff0_used [L743] 2 y$w_buff0_used = (_Bool)1 [L744] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND TRUE 2 !expression [L18] 2 reach_error() VAL [\old(expression)=0, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, expression=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=1, y$w_buff1_used=1, y=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: 815]: 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: 813]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 119 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 8 mSDtfsCounter, 82 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=62occurred 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, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 7 procedures, 137 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: 8.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 125 IncrementalHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 1 mSDtfsCounter, 125 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=126occurred 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, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 17:05:32,717 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...