/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_safe003_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 17:57:03,783 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 17:57:03,858 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 17:57:03,865 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 17:57:03,865 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 17:57:03,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 17:57:03,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 17:57:03,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 17:57:03,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 17:57:03,897 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 17:57:03,897 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 17:57:03,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 17:57:03,898 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 17:57:03,899 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 17:57:03,899 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 17:57:03,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 17:57:03,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 17:57:03,900 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 17:57:03,900 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 17:57:03,900 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 17:57:03,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 17:57:03,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 17:57:03,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 17:57:03,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 17:57:03,902 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 17:57:03,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 17:57:03,903 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 17:57:03,903 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 17:57:03,903 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 17:57:03,904 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 17:57:03,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 17:57:03,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 17:57:03,904 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 17:57:03,905 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 17:57:03,905 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 17:57:03,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 17:57:03,905 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 17:57:03,906 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 17:57:03,906 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 17:57:03,906 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 17:57:03,906 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 17:57:03,908 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 17:57:04,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 17:57:04,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 17:57:04,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 17:57:04,124 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 17:57:04,124 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 17:57:04,125 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_safe003_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt_bound2.i [2023-08-03 17:57:05,269 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 17:57:05,481 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 17:57:05,482 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_safe003_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt_bound2.i [2023-08-03 17:57:05,497 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8220a10d1/b24ea4ff86704726ab84cd4b234f0343/FLAG672618873 [2023-08-03 17:57:05,512 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8220a10d1/b24ea4ff86704726ab84cd4b234f0343 [2023-08-03 17:57:05,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 17:57:05,516 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 17:57:05,517 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 17:57:05,517 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 17:57:05,520 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 17:57:05,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 05:57:05" (1/1) ... [2023-08-03 17:57:05,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44077145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:57:05, skipping insertion in model container [2023-08-03 17:57:05,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 05:57:05" (1/1) ... [2023-08-03 17:57:05,562 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 17:57:05,697 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_safe003_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt_bound2.i[986,999] [2023-08-03 17:57:05,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 17:57:05,926 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 17:57:05,937 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_safe003_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt_bound2.i[986,999] [2023-08-03 17:57:05,945 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 17:57:05,947 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 17:57:05,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 17:57:06,019 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 17:57:06,019 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 17:57:06,025 INFO L206 MainTranslator]: Completed translation [2023-08-03 17:57:06,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:57:06 WrapperNode [2023-08-03 17:57:06,025 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 17:57:06,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 17:57:06,026 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 17:57:06,026 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 17:57:06,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:57:06" (1/1) ... [2023-08-03 17:57:06,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:57:06" (1/1) ... [2023-08-03 17:57:06,071 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 169 [2023-08-03 17:57:06,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 17:57:06,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 17:57:06,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 17:57:06,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 17:57:06,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:57:06" (1/1) ... [2023-08-03 17:57:06,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:57:06" (1/1) ... [2023-08-03 17:57:06,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:57:06" (1/1) ... [2023-08-03 17:57:06,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:57:06" (1/1) ... [2023-08-03 17:57:06,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:57:06" (1/1) ... [2023-08-03 17:57:06,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:57:06" (1/1) ... [2023-08-03 17:57:06,099 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:57:06" (1/1) ... [2023-08-03 17:57:06,100 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:57:06" (1/1) ... [2023-08-03 17:57:06,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 17:57:06,105 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 17:57:06,105 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 17:57:06,105 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 17:57:06,106 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:57:06" (1/1) ... [2023-08-03 17:57:06,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 17:57:06,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:57:06,138 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 17:57:06,145 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 17:57:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 17:57:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-03 17:57:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 17:57:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 17:57:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 17:57:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-03 17:57:06,173 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-03 17:57:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-03 17:57:06,173 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-03 17:57:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-03 17:57:06,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-03 17:57:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 17:57:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-03 17:57:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 17:57:06,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 17:57:06,175 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 17:57:06,310 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 17:57:06,312 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 17:57:06,683 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 17:57:06,834 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 17:57:06,834 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-03 17:57:06,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 05:57:06 BoogieIcfgContainer [2023-08-03 17:57:06,836 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 17:57:06,838 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 17:57:06,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 17:57:06,841 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 17:57:06,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 05:57:05" (1/3) ... [2023-08-03 17:57:06,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711da59d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 05:57:06, skipping insertion in model container [2023-08-03 17:57:06,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:57:06" (2/3) ... [2023-08-03 17:57:06,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711da59d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 05:57:06, skipping insertion in model container [2023-08-03 17:57:06,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 05:57:06" (3/3) ... [2023-08-03 17:57:06,845 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-wmm_safe003_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt_bound2.i [2023-08-03 17:57:06,852 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 17:57:06,860 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 17:57:06,860 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-03 17:57:06,860 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 17:57:06,911 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 17:57:06,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 129 transitions, 273 flow [2023-08-03 17:57:07,123 INFO L124 PetriNetUnfolderBase]: 30/448 cut-off events. [2023-08-03 17:57:07,124 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:57:07,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 448 events. 30/448 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1969 event pairs, 0 based on Foata normal form. 0/395 useless extension candidates. Maximal degree in co-relation 269. Up to 16 conditions per place. [2023-08-03 17:57:07,130 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 129 transitions, 273 flow [2023-08-03 17:57:07,138 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 129 transitions, 273 flow [2023-08-03 17:57:07,141 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 17:57:07,155 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 129 transitions, 273 flow [2023-08-03 17:57:07,157 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 129 transitions, 273 flow [2023-08-03 17:57:07,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 129 transitions, 273 flow [2023-08-03 17:57:07,215 INFO L124 PetriNetUnfolderBase]: 30/448 cut-off events. [2023-08-03 17:57:07,215 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:57:07,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 448 events. 30/448 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1969 event pairs, 0 based on Foata normal form. 0/395 useless extension candidates. Maximal degree in co-relation 269. Up to 16 conditions per place. [2023-08-03 17:57:07,224 INFO L119 LiptonReduction]: Number of co-enabled transitions 2728 [2023-08-03 17:57:11,248 INFO L134 LiptonReduction]: Checked pairs total: 6728 [2023-08-03 17:57:11,248 INFO L136 LiptonReduction]: Total number of compositions: 112 [2023-08-03 17:57:11,260 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 17:57:11,265 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;@5d1b1e3a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 17:57:11,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-03 17:57:11,267 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 17:57:11,268 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-03 17:57:11,268 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:57:11,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:57:11,268 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 17:57:11,269 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 17:57:11,272 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:57:11,273 INFO L85 PathProgramCache]: Analyzing trace with hash 19445246, now seen corresponding path program 1 times [2023-08-03 17:57:11,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:57:11,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724079867] [2023-08-03 17:57:11,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:57:11,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:57:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:57:11,619 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 17:57:11,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:57:11,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724079867] [2023-08-03 17:57:11,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724079867] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:57:11,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:57:11,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 17:57:11,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748492520] [2023-08-03 17:57:11,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:57:11,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:57:11,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:57:11,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:57:11,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:57:11,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 241 [2023-08-03 17:57:11,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 17:57:11,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:57:11,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 241 [2023-08-03 17:57:11,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:57:12,189 INFO L124 PetriNetUnfolderBase]: 1908/3256 cut-off events. [2023-08-03 17:57:12,189 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-08-03 17:57:12,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6355 conditions, 3256 events. 1908/3256 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 19686 event pairs, 498 based on Foata normal form. 0/2924 useless extension candidates. Maximal degree in co-relation 5377. Up to 2077 conditions per place. [2023-08-03 17:57:12,206 INFO L140 encePairwiseOnDemand]: 238/241 looper letters, 43 selfloop transitions, 2 changer transitions 2/52 dead transitions. [2023-08-03 17:57:12,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 52 transitions, 219 flow [2023-08-03 17:57:12,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:57:12,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:57:12,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2023-08-03 17:57:12,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5228215767634855 [2023-08-03 17:57:12,218 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 378 transitions. [2023-08-03 17:57:12,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 378 transitions. [2023-08-03 17:57:12,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:57:12,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 378 transitions. [2023-08-03 17:57:12,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 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 17:57:12,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:57:12,229 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:57:12,230 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 79 flow. Second operand 3 states and 378 transitions. [2023-08-03 17:57:12,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 52 transitions, 219 flow [2023-08-03 17:57:12,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 52 transitions, 219 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 17:57:12,235 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 79 flow [2023-08-03 17:57:12,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2023-08-03 17:57:12,239 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-08-03 17:57:12,239 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 79 flow [2023-08-03 17:57:12,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 17:57:12,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:57:12,239 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-03 17:57:12,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 17:57:12,240 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 17:57:12,240 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:57:12,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1507084012, now seen corresponding path program 1 times [2023-08-03 17:57:12,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:57:12,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230461586] [2023-08-03 17:57:12,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:57:12,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:57:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:57:12,254 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 17:57:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:57:12,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 17:57:12,279 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 17:57:12,280 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2023-08-03 17:57:12,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-08-03 17:57:12,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2023-08-03 17:57:12,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-08-03 17:57:12,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2023-08-03 17:57:12,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-08-03 17:57:12,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-03 17:57:12,283 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-03 17:57:12,285 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-03 17:57:12,285 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-03 17:57:12,315 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 17:57:12,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 154 transitions, 344 flow [2023-08-03 17:57:12,511 INFO L124 PetriNetUnfolderBase]: 93/1377 cut-off events. [2023-08-03 17:57:12,512 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-03 17:57:12,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1475 conditions, 1377 events. 93/1377 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9487 event pairs, 0 based on Foata normal form. 0/1216 useless extension candidates. Maximal degree in co-relation 1000. Up to 54 conditions per place. [2023-08-03 17:57:12,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 154 transitions, 344 flow [2023-08-03 17:57:12,523 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 154 transitions, 344 flow [2023-08-03 17:57:12,523 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 17:57:12,523 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 154 transitions, 344 flow [2023-08-03 17:57:12,524 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 154 transitions, 344 flow [2023-08-03 17:57:12,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 154 transitions, 344 flow [2023-08-03 17:57:12,712 INFO L124 PetriNetUnfolderBase]: 93/1377 cut-off events. [2023-08-03 17:57:12,712 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-08-03 17:57:12,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1475 conditions, 1377 events. 93/1377 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9487 event pairs, 0 based on Foata normal form. 0/1216 useless extension candidates. Maximal degree in co-relation 1000. Up to 54 conditions per place. [2023-08-03 17:57:12,755 INFO L119 LiptonReduction]: Number of co-enabled transitions 6560 [2023-08-03 17:57:16,912 INFO L134 LiptonReduction]: Checked pairs total: 20641 [2023-08-03 17:57:16,912 INFO L136 LiptonReduction]: Total number of compositions: 119 [2023-08-03 17:57:16,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 17:57:16,923 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;@5d1b1e3a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 17:57:16,926 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-03 17:57:16,929 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 17:57:16,932 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-08-03 17:57:16,932 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:57:16,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:57:16,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 17:57:16,933 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 17:57:16,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:57:16,933 INFO L85 PathProgramCache]: Analyzing trace with hash 28623447, now seen corresponding path program 1 times [2023-08-03 17:57:16,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:57:16,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280005989] [2023-08-03 17:57:16,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:57:16,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:57:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:57:17,059 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 17:57:17,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:57:17,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280005989] [2023-08-03 17:57:17,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280005989] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:57:17,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:57:17,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 17:57:17,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392890429] [2023-08-03 17:57:17,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:57:17,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:57:17,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:57:17,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:57:17,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:57:17,068 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 273 [2023-08-03 17:57:17,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 51 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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 17:57:17,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:57:17,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 273 [2023-08-03 17:57:17,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:58:22,322 INFO L124 PetriNetUnfolderBase]: 490490/643558 cut-off events. [2023-08-03 17:58:22,323 INFO L125 PetriNetUnfolderBase]: For 9497/9497 co-relation queries the response was YES. [2023-08-03 17:58:23,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1268549 conditions, 643558 events. 490490/643558 cut-off events. For 9497/9497 co-relation queries the response was YES. Maximal size of possible extension queue 15812. Compared 4687178 event pairs, 81617 based on Foata normal form. 0/579435 useless extension candidates. Maximal degree in co-relation 1068852. Up to 565329 conditions per place. [2023-08-03 17:58:25,999 INFO L140 encePairwiseOnDemand]: 268/273 looper letters, 71 selfloop transitions, 3 changer transitions 0/84 dead transitions. [2023-08-03 17:58:25,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 84 transitions, 373 flow [2023-08-03 17:58:26,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:58:26,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:58:26,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 451 transitions. [2023-08-03 17:58:26,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5506715506715507 [2023-08-03 17:58:26,009 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 451 transitions. [2023-08-03 17:58:26,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 451 transitions. [2023-08-03 17:58:26,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:58:26,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 451 transitions. [2023-08-03 17:58:26,012 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 17:58:26,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:58:26,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:58:26,017 INFO L175 Difference]: Start difference. First operand has 64 places, 51 transitions, 138 flow. Second operand 3 states and 451 transitions. [2023-08-03 17:58:26,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 84 transitions, 373 flow [2023-08-03 17:58:26,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 84 transitions, 367 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-03 17:58:26,029 INFO L231 Difference]: Finished difference. Result has 67 places, 53 transitions, 153 flow [2023-08-03 17:58:26,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=67, PETRI_TRANSITIONS=53} [2023-08-03 17:58:26,030 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 3 predicate places. [2023-08-03 17:58:26,030 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 53 transitions, 153 flow [2023-08-03 17:58:26,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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 17:58:26,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:58:26,031 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-03 17:58:26,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-03 17:58:26,031 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 17:58:26,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:58:26,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1745649649, now seen corresponding path program 1 times [2023-08-03 17:58:26,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:58:26,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560200224] [2023-08-03 17:58:26,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:58:26,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:58:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:58:26,106 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 17:58:26,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:58:26,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560200224] [2023-08-03 17:58:26,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560200224] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:58:26,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:58:26,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 17:58:26,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672839529] [2023-08-03 17:58:26,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:58:26,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:58:26,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:58:26,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:58:26,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:58:26,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 273 [2023-08-03 17:58:26,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 53 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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 17:58:26,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:58:26,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 273 [2023-08-03 17:58:26,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:59:29,323 INFO L124 PetriNetUnfolderBase]: 478628/608918 cut-off events. [2023-08-03 17:59:29,324 INFO L125 PetriNetUnfolderBase]: For 50118/50118 co-relation queries the response was YES. [2023-08-03 17:59:31,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1300681 conditions, 608918 events. 478628/608918 cut-off events. For 50118/50118 co-relation queries the response was YES. Maximal size of possible extension queue 14210. Compared 3955517 event pairs, 400414 based on Foata normal form. 0/542974 useless extension candidates. Maximal degree in co-relation 855896. Up to 598251 conditions per place. [2023-08-03 17:59:34,081 INFO L140 encePairwiseOnDemand]: 270/273 looper letters, 46 selfloop transitions, 2 changer transitions 0/58 dead transitions. [2023-08-03 17:59:34,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 58 transitions, 262 flow [2023-08-03 17:59:34,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:59:34,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:59:34,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2023-08-03 17:59:34,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5042735042735043 [2023-08-03 17:59:34,094 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2023-08-03 17:59:34,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2023-08-03 17:59:34,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:59:34,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2023-08-03 17:59:34,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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 17:59:34,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:59:34,101 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 273.0) internal successors, (1092), 4 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:59:34,101 INFO L175 Difference]: Start difference. First operand has 67 places, 53 transitions, 153 flow. Second operand 3 states and 413 transitions. [2023-08-03 17:59:34,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 58 transitions, 262 flow [2023-08-03 17:59:34,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 58 transitions, 258 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 17:59:34,163 INFO L231 Difference]: Finished difference. Result has 69 places, 54 transitions, 162 flow [2023-08-03 17:59:34,164 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=69, PETRI_TRANSITIONS=54} [2023-08-03 17:59:34,166 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 5 predicate places. [2023-08-03 17:59:34,166 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 54 transitions, 162 flow [2023-08-03 17:59:34,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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 17:59:34,167 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:59:34,167 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 17:59:34,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-03 17:59:34,167 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 17:59:34,167 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:59:34,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1196713035, now seen corresponding path program 1 times [2023-08-03 17:59:34,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:59:34,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840021322] [2023-08-03 17:59:34,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:59:34,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:59:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:59:34,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 17:59:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:59:34,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 17:59:34,237 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 17:59:34,237 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-08-03 17:59:34,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-08-03 17:59:34,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-08-03 17:59:34,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-03 17:59:34,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-08-03 17:59:34,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2023-08-03 17:59:34,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-08-03 17:59:34,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-03 17:59:34,238 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-03 17:59:34,247 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-03 17:59:34,248 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 17:59:34,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 05:59:34 BasicIcfg [2023-08-03 17:59:34,304 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 17:59:34,304 INFO L158 Benchmark]: Toolchain (without parser) took 148788.53ms. Allocated memory was 580.9MB in the beginning and 16.0GB in the end (delta: 15.4GB). Free memory was 528.8MB in the beginning and 10.7GB in the end (delta: -10.2GB). Peak memory consumption was 5.2GB. Max. memory is 16.0GB. [2023-08-03 17:59:34,305 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 352.3MB. Free memory is still 301.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 17:59:34,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 508.60ms. Allocated memory is still 580.9MB. Free memory was 528.8MB in the beginning and 502.9MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-03 17:59:34,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.51ms. Allocated memory is still 580.9MB. Free memory was 502.9MB in the beginning and 499.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-03 17:59:34,305 INFO L158 Benchmark]: Boogie Preprocessor took 31.78ms. Allocated memory is still 580.9MB. Free memory was 499.9MB in the beginning and 497.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 17:59:34,306 INFO L158 Benchmark]: RCFGBuilder took 731.66ms. Allocated memory is still 580.9MB. Free memory was 497.4MB in the beginning and 502.1MB in the end (delta: -4.7MB). Peak memory consumption was 16.3MB. Max. memory is 16.0GB. [2023-08-03 17:59:34,306 INFO L158 Benchmark]: TraceAbstraction took 147465.71ms. Allocated memory was 580.9MB in the beginning and 16.0GB in the end (delta: 15.4GB). Free memory was 502.1MB in the beginning and 10.7GB in the end (delta: -10.2GB). Peak memory consumption was 5.2GB. Max. memory is 16.0GB. [2023-08-03 17:59:34,307 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 352.3MB. Free memory is still 301.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 508.60ms. Allocated memory is still 580.9MB. Free memory was 528.8MB in the beginning and 502.9MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.51ms. Allocated memory is still 580.9MB. Free memory was 502.9MB in the beginning and 499.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.78ms. Allocated memory is still 580.9MB. Free memory was 499.9MB in the beginning and 497.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 731.66ms. Allocated memory is still 580.9MB. Free memory was 497.4MB in the beginning and 502.1MB in the end (delta: -4.7MB). Peak memory consumption was 16.3MB. Max. memory is 16.0GB. * TraceAbstraction took 147465.71ms. Allocated memory was 580.9MB in the beginning and 16.0GB in the end (delta: 15.4GB). Free memory was 502.1MB in the beginning and 10.7GB in the end (delta: -10.2GB). Peak memory consumption was 5.2GB. 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: 4.1s, 131 PlacesBefore, 39 PlacesAfterwards, 129 TransitionsBefore, 32 TransitionsAfterwards, 2728 CoEnabledTransitionPairs, 7 FixpointIterations, 36 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 5 ChoiceCompositions, 112 TotalNumberOfCompositions, 6728 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2876, independent: 2697, independent conditional: 0, independent unconditional: 2697, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1392, independent: 1352, independent conditional: 0, independent unconditional: 1352, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2876, independent: 1345, independent conditional: 0, independent unconditional: 1345, dependent: 139, dependent conditional: 0, dependent unconditional: 139, unknown: 1392, unknown conditional: 0, unknown unconditional: 1392] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 162 PlacesBefore, 64 PlacesAfterwards, 154 TransitionsBefore, 51 TransitionsAfterwards, 6560 CoEnabledTransitionPairs, 7 FixpointIterations, 36 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 5 ChoiceCompositions, 119 TotalNumberOfCompositions, 20641 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7207, independent: 6876, independent conditional: 0, independent unconditional: 6876, dependent: 331, dependent conditional: 0, dependent unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3135, independent: 3075, independent conditional: 0, independent unconditional: 3075, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7207, independent: 3801, independent conditional: 0, independent unconditional: 3801, dependent: 271, dependent conditional: 0, dependent unconditional: 271, unknown: 3135, unknown conditional: 0, unknown unconditional: 3135] , Statistics on independence cache: Total cache size (in pairs): 285, Positive cache size: 258, Positive conditional cache size: 0, Positive unconditional cache size: 258, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p1_EAX = 0; [L713] 0 int __unbuffered_p2_EAX = 0; [L715] 0 int __unbuffered_p2_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff0_thd3; [L728] 0 _Bool y$r_buff1_thd0; [L729] 0 _Bool y$r_buff1_thd1; [L730] 0 _Bool y$r_buff1_thd2; [L731] 0 _Bool y$r_buff1_thd3; [L732] 0 _Bool y$read_delayed; [L733] 0 int *y$read_delayed_var; [L734] 0 int y$w_buff0; [L735] 0 _Bool y$w_buff0_used; [L736] 0 int y$w_buff1; [L737] 0 _Bool y$w_buff1_used; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L846] 0 pthread_t t1849[2]; [L847] 0 int asdf=0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, asdf=0, main$tmp_guard0=0, main$tmp_guard1=0, t1849={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_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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] [L847] COND TRUE 0 asdf<2 [L847] FCALL, FORK 0 pthread_create(&t1849[asdf], ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, asdf=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1849[asdf], ((void *)0), P0, ((void *)0))=-1, t1849={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_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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] [L743] 1 y$w_buff1 = y$w_buff0 [L744] 1 y$w_buff0 = 2 [L745] 1 y$w_buff1_used = y$w_buff0_used [L746] 1 y$w_buff0_used = (_Bool)1 [L747] CALL 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L747] RET 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L748] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L749] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L750] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L751] 1 y$r_buff1_thd3 = y$r_buff0_thd3 [L752] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L847] 0 asdf++ VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, asdf=1, main$tmp_guard0=0, main$tmp_guard1=0, t1849={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_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L847] COND TRUE 0 asdf<2 [L847] FCALL, FORK 0 pthread_create(&t1849[asdf], ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, asdf=1, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1849[asdf], ((void *)0), P0, ((void *)0))=0, t1849={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_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L743] 2 y$w_buff1 = y$w_buff0 [L744] 2 y$w_buff0 = 2 [L745] 2 y$w_buff1_used = y$w_buff0_used [L746] 2 y$w_buff0_used = (_Bool)1 [L747] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND TRUE 2 !expression [L18] 2 reach_error() VAL [\old(expression)=1, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, expression=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=2, y$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: 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: 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. - UnprovableResult [Line: 847]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 150 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 1 mSDtfsCounter, 50 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=79occurred 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, 0.0s 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, 175 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 141.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 137.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 172 IncrementalHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 8 mSDtfsCounter, 172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-03 17:59:34,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...