/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 PROGRAM_FIRST -tc /storage/repos/CAV22/benchmarks/AutomizerCInline.xml -i /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_92-evilcollapse_racing_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-04 04:09:04,303 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-04 04:09:04,376 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-04 04:09:04,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-04 04:09:04,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-04 04:09:04,383 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-04 04:09:04,383 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-04 04:09:04,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-04 04:09:04,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-04 04:09:04,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-04 04:09:04,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-04 04:09:04,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-04 04:09:04,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-04 04:09:04,431 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-04 04:09:04,431 INFO L153 SettingsManager]: * Use SBE=true [2023-08-04 04:09:04,432 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-04 04:09:04,432 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-04 04:09:04,432 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-04 04:09:04,432 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-04 04:09:04,432 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-04 04:09:04,433 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-04 04:09:04,433 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-04 04:09:04,433 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-04 04:09:04,434 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-04 04:09:04,435 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-04 04:09:04,435 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-04 04:09:04,435 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-04 04:09:04,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-04 04:09:04,436 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-04 04:09:04,436 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-04 04:09:04,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-04 04:09:04,437 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-04 04:09:04,437 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-04 04:09:04,437 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-04 04:09:04,437 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-04 04:09:04,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-04 04:09:04,438 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-04 04:09:04,438 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-04 04:09:04,438 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-04 04:09:04,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-04 04:09:04,438 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-04 04:09:04,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST [2023-08-04 04:09:04,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-04 04:09:04,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-04 04:09:04,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-04 04:09:04,696 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-04 04:09:04,696 INFO L274 PluginConnector]: CDTParser initialized [2023-08-04 04:09:04,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_92-evilcollapse_racing_bound2.i [2023-08-04 04:09:05,882 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-04 04:09:06,178 INFO L384 CDTParser]: Found 1 translation units. [2023-08-04 04:09:06,179 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_92-evilcollapse_racing_bound2.i [2023-08-04 04:09:06,199 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0492755c/00ee195dbc0040be8c5da567237f9ac3/FLAG0eae178af [2023-08-04 04:09:06,217 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0492755c/00ee195dbc0040be8c5da567237f9ac3 [2023-08-04 04:09:06,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-04 04:09:06,224 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-04 04:09:06,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-04 04:09:06,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-04 04:09:06,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-04 04:09:06,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.08 04:09:06" (1/1) ... [2023-08-04 04:09:06,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4799748f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:09:06, skipping insertion in model container [2023-08-04 04:09:06,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.08 04:09:06" (1/1) ... [2023-08-04 04:09:06,290 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-04 04:09:06,642 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_92-evilcollapse_racing_bound2.i[47038,47051] [2023-08-04 04:09:06,655 WARN L1557 CHandler]: Possible shadowing of function new [2023-08-04 04:09:06,655 WARN L1557 CHandler]: Possible shadowing of function new [2023-08-04 04:09:06,656 WARN L1557 CHandler]: Possible shadowing of function new [2023-08-04 04:09:06,658 WARN L1557 CHandler]: Possible shadowing of function new [2023-08-04 04:09:06,691 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-04 04:09:06,706 INFO L201 MainTranslator]: Completed pre-run [2023-08-04 04:09:06,738 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-04 04:09:06,739 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-04 04:09:06,764 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/goblint-regression_28-race_reach_92-evilcollapse_racing_bound2.i[47038,47051] [2023-08-04 04:09:06,767 WARN L1557 CHandler]: Possible shadowing of function new [2023-08-04 04:09:06,767 WARN L1557 CHandler]: Possible shadowing of function new [2023-08-04 04:09:06,767 WARN L1557 CHandler]: Possible shadowing of function new [2023-08-04 04:09:06,768 WARN L1557 CHandler]: Possible shadowing of function new [2023-08-04 04:09:06,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-04 04:09:06,843 INFO L206 MainTranslator]: Completed translation [2023-08-04 04:09:06,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:09:06 WrapperNode [2023-08-04 04:09:06,843 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-04 04:09:06,844 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-04 04:09:06,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-04 04:09:06,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-04 04:09:06,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:09:06" (1/1) ... [2023-08-04 04:09:06,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:09:06" (1/1) ... [2023-08-04 04:09:06,909 INFO L138 Inliner]: procedures = 278, calls = 51, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 225 [2023-08-04 04:09:06,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-04 04:09:06,910 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-04 04:09:06,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-04 04:09:06,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-04 04:09:06,919 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:09:06" (1/1) ... [2023-08-04 04:09:06,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:09:06" (1/1) ... [2023-08-04 04:09:06,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:09:06" (1/1) ... [2023-08-04 04:09:06,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:09:06" (1/1) ... [2023-08-04 04:09:06,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:09:06" (1/1) ... [2023-08-04 04:09:06,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:09:06" (1/1) ... [2023-08-04 04:09:06,949 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:09:06" (1/1) ... [2023-08-04 04:09:06,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:09:06" (1/1) ... [2023-08-04 04:09:06,955 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-04 04:09:06,957 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-04 04:09:06,958 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-04 04:09:06,958 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-04 04:09:06,959 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:09:06" (1/1) ... [2023-08-04 04:09:06,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-04 04:09:06,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 04:09:06,994 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) [2023-08-04 04:09:07,007 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 [2023-08-04 04:09:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-04 04:09:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-04 04:09:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-04 04:09:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-04 04:09:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-04 04:09:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-04 04:09:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-04 04:09:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-04 04:09:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-04 04:09:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-04 04:09:07,037 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-04 04:09:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-04 04:09:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-04 04:09:07,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-04 04:09:07,039 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-04 04:09:07,244 INFO L236 CfgBuilder]: Building ICFG [2023-08-04 04:09:07,246 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-04 04:09:07,644 INFO L277 CfgBuilder]: Performing block encoding [2023-08-04 04:09:07,652 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-04 04:09:07,652 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-08-04 04:09:07,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 04:09:07 BoogieIcfgContainer [2023-08-04 04:09:07,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-04 04:09:07,656 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-04 04:09:07,656 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-04 04:09:07,659 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-04 04:09:07,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.08 04:09:06" (1/3) ... [2023-08-04 04:09:07,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767aed13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 04:09:07, skipping insertion in model container [2023-08-04 04:09:07,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:09:06" (2/3) ... [2023-08-04 04:09:07,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767aed13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 04:09:07, skipping insertion in model container [2023-08-04 04:09:07,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 04:09:07" (3/3) ... [2023-08-04 04:09:07,661 INFO L112 eAbstractionObserver]: Analyzing ICFG goblint-regression_28-race_reach_92-evilcollapse_racing_bound2.i [2023-08-04 04:09:07,668 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-04 04:09:07,677 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-04 04:09:07,678 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-04 04:09:07,678 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-04 04:09:07,780 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-04 04:09:07,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 233 transitions, 474 flow [2023-08-04 04:09:07,917 INFO L124 PetriNetUnfolderBase]: 28/249 cut-off events. [2023-08-04 04:09:07,917 INFO L125 PetriNetUnfolderBase]: For 1/2 co-relation queries the response was YES. [2023-08-04 04:09:07,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 249 events. 28/249 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 387 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 134. Up to 4 conditions per place. [2023-08-04 04:09:07,928 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 233 transitions, 474 flow [2023-08-04 04:09:07,936 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 206 places, 228 transitions, 461 flow [2023-08-04 04:09:07,939 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-04 04:09:07,952 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 206 places, 228 transitions, 461 flow [2023-08-04 04:09:07,954 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 206 places, 228 transitions, 461 flow [2023-08-04 04:09:07,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 228 transitions, 461 flow [2023-08-04 04:09:07,997 INFO L124 PetriNetUnfolderBase]: 27/244 cut-off events. [2023-08-04 04:09:07,997 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:09:07,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 244 events. 27/244 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 337 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 134. Up to 4 conditions per place. [2023-08-04 04:09:08,002 INFO L119 LiptonReduction]: Number of co-enabled transitions 3828 [2023-08-04 04:09:26,552 WARN L233 SmtUtils]: Spent 6.40s on a formula simplification that was a NOOP. DAG size: 172 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-04 04:09:32,938 WARN L233 SmtUtils]: Spent 6.38s on a formula simplification that was a NOOP. DAG size: 180 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-04 04:09:38,309 INFO L134 LiptonReduction]: Checked pairs total: 3792 [2023-08-04 04:09:38,310 INFO L136 LiptonReduction]: Total number of compositions: 237 [2023-08-04 04:09:38,321 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-04 04:09:38,325 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;@294de71e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-04 04:09:38,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-04 04:09:38,332 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-04 04:09:38,333 INFO L124 PetriNetUnfolderBase]: 8/28 cut-off events. [2023-08-04 04:09:38,333 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:09:38,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:09:38,334 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 04:09:38,334 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:09:38,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:09:38,338 INFO L85 PathProgramCache]: Analyzing trace with hash 395511225, now seen corresponding path program 1 times [2023-08-04 04:09:38,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:09:38,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181850404] [2023-08-04 04:09:38,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:09:38,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:09:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 04:09:38,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 04:09:38,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 04:09:38,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181850404] [2023-08-04 04:09:38,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181850404] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 04:09:38,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-04 04:09:38,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-04 04:09:38,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352762138] [2023-08-04 04:09:38,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 04:09:38,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-04 04:09:38,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 04:09:38,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-04 04:09:38,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-04 04:09:38,683 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 470 [2023-08-04 04:09:38,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 36 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 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) [2023-08-04 04:09:38,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 04:09:38,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 470 [2023-08-04 04:09:38,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 04:09:38,844 INFO L124 PetriNetUnfolderBase]: 48/113 cut-off events. [2023-08-04 04:09:38,844 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:09:38,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 113 events. 48/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 292 event pairs, 33 based on Foata normal form. 8/93 useless extension candidates. Maximal degree in co-relation 188. Up to 97 conditions per place. [2023-08-04 04:09:38,846 INFO L140 encePairwiseOnDemand]: 457/470 looper letters, 22 selfloop transitions, 2 changer transitions 1/29 dead transitions. [2023-08-04 04:09:38,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 29 transitions, 113 flow [2023-08-04 04:09:38,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-04 04:09:38,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-04 04:09:38,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 654 transitions. [2023-08-04 04:09:38,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46382978723404256 [2023-08-04 04:09:38,862 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 654 transitions. [2023-08-04 04:09:38,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 654 transitions. [2023-08-04 04:09:38,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 04:09:38,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 654 transitions. [2023-08-04 04:09:38,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 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) [2023-08-04 04:09:38,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 470.0) internal successors, (1880), 4 states have internal predecessors, (1880), 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) [2023-08-04 04:09:38,876 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 470.0) internal successors, (1880), 4 states have internal predecessors, (1880), 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) [2023-08-04 04:09:38,878 INFO L175 Difference]: Start difference. First operand has 25 places, 36 transitions, 77 flow. Second operand 3 states and 654 transitions. [2023-08-04 04:09:38,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 29 transitions, 113 flow [2023-08-04 04:09:38,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 29 transitions, 113 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-04 04:09:38,881 INFO L231 Difference]: Finished difference. Result has 27 places, 26 transitions, 67 flow [2023-08-04 04:09:38,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=470, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=27, PETRI_TRANSITIONS=26} [2023-08-04 04:09:38,887 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2023-08-04 04:09:38,888 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 26 transitions, 67 flow [2023-08-04 04:09:38,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 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) [2023-08-04 04:09:38,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:09:38,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 04:09:38,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-04 04:09:38,890 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:09:38,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:09:38,891 INFO L85 PathProgramCache]: Analyzing trace with hash 343259915, now seen corresponding path program 1 times [2023-08-04 04:09:38,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:09:38,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111048444] [2023-08-04 04:09:38,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:09:38,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:09:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 04:09:38,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 04:09:38,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 04:09:38,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111048444] [2023-08-04 04:09:38,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111048444] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 04:09:38,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-04 04:09:38,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-04 04:09:38,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438309745] [2023-08-04 04:09:38,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 04:09:38,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-04 04:09:38,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 04:09:38,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-04 04:09:38,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-04 04:09:39,001 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 470 [2023-08-04 04:09:39,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 26 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 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) [2023-08-04 04:09:39,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 04:09:39,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 470 [2023-08-04 04:09:39,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 04:09:39,100 INFO L124 PetriNetUnfolderBase]: 45/108 cut-off events. [2023-08-04 04:09:39,100 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:09:39,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 108 events. 45/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 257 event pairs, 30 based on Foata normal form. 2/90 useless extension candidates. Maximal degree in co-relation 198. Up to 93 conditions per place. [2023-08-04 04:09:39,101 INFO L140 encePairwiseOnDemand]: 467/470 looper letters, 21 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2023-08-04 04:09:39,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 115 flow [2023-08-04 04:09:39,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-04 04:09:39,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-04 04:09:39,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 641 transitions. [2023-08-04 04:09:39,104 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4546099290780142 [2023-08-04 04:09:39,104 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 641 transitions. [2023-08-04 04:09:39,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 641 transitions. [2023-08-04 04:09:39,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 04:09:39,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 641 transitions. [2023-08-04 04:09:39,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 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) [2023-08-04 04:09:39,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 470.0) internal successors, (1880), 4 states have internal predecessors, (1880), 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) [2023-08-04 04:09:39,111 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 470.0) internal successors, (1880), 4 states have internal predecessors, (1880), 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) [2023-08-04 04:09:39,111 INFO L175 Difference]: Start difference. First operand has 27 places, 26 transitions, 67 flow. Second operand 3 states and 641 transitions. [2023-08-04 04:09:39,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 115 flow [2023-08-04 04:09:39,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 113 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-04 04:09:39,113 INFO L231 Difference]: Finished difference. Result has 28 places, 27 transitions, 79 flow [2023-08-04 04:09:39,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=470, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=28, PETRI_TRANSITIONS=27} [2023-08-04 04:09:39,114 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2023-08-04 04:09:39,114 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 27 transitions, 79 flow [2023-08-04 04:09:39,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 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) [2023-08-04 04:09:39,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:09:39,115 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 04:09:39,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-04 04:09:39,115 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:09:39,118 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:09:39,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1330266228, now seen corresponding path program 1 times [2023-08-04 04:09:39,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:09:39,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878945851] [2023-08-04 04:09:39,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:09:39,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:09:39,151 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-04 04:09:39,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [947148129] [2023-08-04 04:09:39,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:09:39,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 04:09:39,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 04:09:39,162 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 04:09:39,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-04 04:09:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 04:09:39,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-04 04:09:39,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 04:09:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 04:09:39,421 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-04 04:09:39,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 04:09:39,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 04:09:39,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878945851] [2023-08-04 04:09:39,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-04 04:09:39,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947148129] [2023-08-04 04:09:39,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947148129] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-04 04:09:39,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-04 04:09:39,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-08-04 04:09:39,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112572700] [2023-08-04 04:09:39,441 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-04 04:09:39,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-04 04:09:39,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 04:09:39,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-04 04:09:39,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-04 04:09:39,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 470 [2023-08-04 04:09:39,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 27 transitions, 79 flow. Second operand has 6 states, 6 states have (on average 207.33333333333334) internal successors, (1244), 6 states have internal predecessors, (1244), 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) [2023-08-04 04:09:39,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 04:09:39,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 470 [2023-08-04 04:09:39,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 04:09:39,810 INFO L124 PetriNetUnfolderBase]: 45/114 cut-off events. [2023-08-04 04:09:39,811 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-04 04:09:39,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 114 events. 45/114 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 270 event pairs, 30 based on Foata normal form. 6/100 useless extension candidates. Maximal degree in co-relation 205. Up to 93 conditions per place. [2023-08-04 04:09:39,812 INFO L140 encePairwiseOnDemand]: 467/470 looper letters, 21 selfloop transitions, 5 changer transitions 0/30 dead transitions. [2023-08-04 04:09:39,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 30 transitions, 143 flow [2023-08-04 04:09:39,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-04 04:09:39,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-04 04:09:39,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1258 transitions. [2023-08-04 04:09:39,816 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4460992907801418 [2023-08-04 04:09:39,816 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1258 transitions. [2023-08-04 04:09:39,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1258 transitions. [2023-08-04 04:09:39,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 04:09:39,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1258 transitions. [2023-08-04 04:09:39,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.66666666666666) internal successors, (1258), 6 states have internal predecessors, (1258), 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) [2023-08-04 04:09:39,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-08-04 04:09:39,828 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-08-04 04:09:39,828 INFO L175 Difference]: Start difference. First operand has 28 places, 27 transitions, 79 flow. Second operand 6 states and 1258 transitions. [2023-08-04 04:09:39,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 30 transitions, 143 flow [2023-08-04 04:09:39,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 139 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-04 04:09:39,830 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 117 flow [2023-08-04 04:09:39,830 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=470, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=117, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2023-08-04 04:09:39,831 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 10 predicate places. [2023-08-04 04:09:39,831 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 117 flow [2023-08-04 04:09:39,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 207.33333333333334) internal successors, (1244), 6 states have internal predecessors, (1244), 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) [2023-08-04 04:09:39,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:09:39,832 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 04:09:39,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-04 04:09:40,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 04:09:40,043 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:09:40,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:09:40,044 INFO L85 PathProgramCache]: Analyzing trace with hash 647189323, now seen corresponding path program 2 times [2023-08-04 04:09:40,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:09:40,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937432928] [2023-08-04 04:09:40,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:09:40,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:09:40,128 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-04 04:09:40,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245370577] [2023-08-04 04:09:40,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-04 04:09:40,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 04:09:40,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 04:09:40,130 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 04:09:40,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-04 04:09:40,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-04 04:09:40,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-04 04:09:40,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 1134 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-04 04:09:40,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 04:09:40,529 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 04:09:40,530 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-04 04:09:40,586 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 04:09:40,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 04:09:40,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937432928] [2023-08-04 04:09:40,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-04 04:09:40,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245370577] [2023-08-04 04:09:40,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245370577] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-04 04:09:40,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-04 04:09:40,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-08-04 04:09:40,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699357325] [2023-08-04 04:09:40,592 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-04 04:09:40,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-04 04:09:40,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 04:09:40,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-04 04:09:40,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-08-04 04:09:40,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 470 [2023-08-04 04:09:40,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 117 flow. Second operand has 12 states, 12 states have (on average 206.66666666666666) internal successors, (2480), 12 states have internal predecessors, (2480), 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) [2023-08-04 04:09:40,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 04:09:40,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 470 [2023-08-04 04:09:40,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 04:09:41,173 INFO L124 PetriNetUnfolderBase]: 45/126 cut-off events. [2023-08-04 04:09:41,174 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2023-08-04 04:09:41,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 126 events. 45/126 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 316 event pairs, 30 based on Foata normal form. 12/118 useless extension candidates. Maximal degree in co-relation 201. Up to 93 conditions per place. [2023-08-04 04:09:41,175 INFO L140 encePairwiseOnDemand]: 467/470 looper letters, 21 selfloop transitions, 11 changer transitions 0/36 dead transitions. [2023-08-04 04:09:41,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 36 transitions, 217 flow [2023-08-04 04:09:41,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-04 04:09:41,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-04 04:09:41,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2497 transitions. [2023-08-04 04:09:41,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4427304964539007 [2023-08-04 04:09:41,182 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2497 transitions. [2023-08-04 04:09:41,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2497 transitions. [2023-08-04 04:09:41,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 04:09:41,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2497 transitions. [2023-08-04 04:09:41,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 208.08333333333334) internal successors, (2497), 12 states have internal predecessors, (2497), 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) [2023-08-04 04:09:41,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 470.0) internal successors, (6110), 13 states have internal predecessors, (6110), 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) [2023-08-04 04:09:41,201 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 470.0) internal successors, (6110), 13 states have internal predecessors, (6110), 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) [2023-08-04 04:09:41,201 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 117 flow. Second operand 12 states and 2497 transitions. [2023-08-04 04:09:41,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 36 transitions, 217 flow [2023-08-04 04:09:41,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 203 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-04 04:09:41,203 INFO L231 Difference]: Finished difference. Result has 51 places, 36 transitions, 199 flow [2023-08-04 04:09:41,203 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=470, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=199, PETRI_PLACES=51, PETRI_TRANSITIONS=36} [2023-08-04 04:09:41,204 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 26 predicate places. [2023-08-04 04:09:41,204 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 36 transitions, 199 flow [2023-08-04 04:09:41,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 206.66666666666666) internal successors, (2480), 12 states have internal predecessors, (2480), 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) [2023-08-04 04:09:41,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:09:41,205 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 04:09:41,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-04 04:09:41,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-04 04:09:41,414 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:09:41,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:09:41,414 INFO L85 PathProgramCache]: Analyzing trace with hash -760661077, now seen corresponding path program 3 times [2023-08-04 04:09:41,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:09:41,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034442871] [2023-08-04 04:09:41,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:09:41,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:09:41,547 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-04 04:09:41,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1801322469] [2023-08-04 04:09:41,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-04 04:09:41,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 04:09:41,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 04:09:41,549 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 04:09:41,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-04 04:09:41,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-04 04:09:41,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-04 04:09:41,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-04 04:09:41,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 04:09:41,987 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-04 04:09:41,988 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-04 04:09:42,022 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-04 04:09:42,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 04:09:42,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034442871] [2023-08-04 04:09:42,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-04 04:09:42,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801322469] [2023-08-04 04:09:42,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801322469] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-04 04:09:42,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-04 04:09:42,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-08-04 04:09:42,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525305500] [2023-08-04 04:09:42,023 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-04 04:09:42,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-04 04:09:42,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 04:09:42,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-04 04:09:42,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-04 04:09:42,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 470 [2023-08-04 04:09:42,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 36 transitions, 199 flow. Second operand has 6 states, 6 states have (on average 207.66666666666666) internal successors, (1246), 6 states have internal predecessors, (1246), 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) [2023-08-04 04:09:42,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 04:09:42,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 470 [2023-08-04 04:09:42,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 04:09:42,390 INFO L124 PetriNetUnfolderBase]: 47/153 cut-off events. [2023-08-04 04:09:42,390 INFO L125 PetriNetUnfolderBase]: For 163/163 co-relation queries the response was YES. [2023-08-04 04:09:42,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 153 events. 47/153 cut-off events. For 163/163 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 254 event pairs, 30 based on Foata normal form. 3/136 useless extension candidates. Maximal degree in co-relation 310. Up to 87 conditions per place. [2023-08-04 04:09:42,392 INFO L140 encePairwiseOnDemand]: 466/470 looper letters, 65 selfloop transitions, 6 changer transitions 0/75 dead transitions. [2023-08-04 04:09:42,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 75 transitions, 690 flow [2023-08-04 04:09:42,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-04 04:09:42,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-04 04:09:42,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1264 transitions. [2023-08-04 04:09:42,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4482269503546099 [2023-08-04 04:09:42,396 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1264 transitions. [2023-08-04 04:09:42,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1264 transitions. [2023-08-04 04:09:42,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 04:09:42,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1264 transitions. [2023-08-04 04:09:42,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 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) [2023-08-04 04:09:42,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-08-04 04:09:42,405 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-08-04 04:09:42,405 INFO L175 Difference]: Start difference. First operand has 51 places, 36 transitions, 199 flow. Second operand 6 states and 1264 transitions. [2023-08-04 04:09:42,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 75 transitions, 690 flow [2023-08-04 04:09:42,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 75 transitions, 496 flow, removed 76 selfloop flow, removed 5 redundant places. [2023-08-04 04:09:42,413 INFO L231 Difference]: Finished difference. Result has 55 places, 39 transitions, 234 flow [2023-08-04 04:09:42,413 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=470, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=234, PETRI_PLACES=55, PETRI_TRANSITIONS=39} [2023-08-04 04:09:42,415 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 30 predicate places. [2023-08-04 04:09:42,416 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 39 transitions, 234 flow [2023-08-04 04:09:42,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 207.66666666666666) internal successors, (1246), 6 states have internal predecessors, (1246), 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) [2023-08-04 04:09:42,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:09:42,416 INFO L208 CegarLoopForPetriNet]: trace histogram [40, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 04:09:42,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-04 04:09:42,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 04:09:42,624 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:09:42,624 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:09:42,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1059699585, now seen corresponding path program 4 times [2023-08-04 04:09:42,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:09:42,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545643821] [2023-08-04 04:09:42,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:09:42,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:09:43,086 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-04 04:09:43,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1450277283] [2023-08-04 04:09:43,087 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-04 04:09:43,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 04:09:43,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 04:09:43,089 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 04:09:43,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-04 04:09:45,479 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-04 04:09:45,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-04 04:09:45,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 9564 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-04 04:09:45,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 04:09:45,646 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 367 proven. 55 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2023-08-04 04:09:45,646 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-04 04:09:45,844 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 367 proven. 55 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2023-08-04 04:09:45,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 04:09:45,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545643821] [2023-08-04 04:09:45,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-04 04:09:45,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450277283] [2023-08-04 04:09:45,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450277283] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-04 04:09:45,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-04 04:09:45,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-08-04 04:09:45,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353405636] [2023-08-04 04:09:45,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-04 04:09:45,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-04 04:09:45,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 04:09:45,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-04 04:09:45,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-08-04 04:09:45,906 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 470 [2023-08-04 04:09:45,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 39 transitions, 234 flow. Second operand has 24 states, 24 states have (on average 206.45833333333334) internal successors, (4955), 24 states have internal predecessors, (4955), 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) [2023-08-04 04:09:45,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 04:09:45,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 470 [2023-08-04 04:09:45,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 04:09:46,946 INFO L124 PetriNetUnfolderBase]: 47/201 cut-off events. [2023-08-04 04:09:46,946 INFO L125 PetriNetUnfolderBase]: For 3489/3489 co-relation queries the response was YES. [2023-08-04 04:09:46,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 624 conditions, 201 events. 47/201 cut-off events. For 3489/3489 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 254 event pairs, 30 based on Foata normal form. 48/229 useless extension candidates. Maximal degree in co-relation 423. Up to 99 conditions per place. [2023-08-04 04:09:46,947 INFO L140 encePairwiseOnDemand]: 467/470 looper letters, 23 selfloop transitions, 24 changer transitions 0/51 dead transitions. [2023-08-04 04:09:46,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 51 transitions, 400 flow [2023-08-04 04:09:46,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-04 04:09:46,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-04 04:09:46,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4975 transitions. [2023-08-04 04:09:46,961 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44104609929078015 [2023-08-04 04:09:46,961 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4975 transitions. [2023-08-04 04:09:46,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4975 transitions. [2023-08-04 04:09:46,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 04:09:46,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4975 transitions. [2023-08-04 04:09:46,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 207.29166666666666) internal successors, (4975), 24 states have internal predecessors, (4975), 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) [2023-08-04 04:09:46,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 470.0) internal successors, (11750), 25 states have internal predecessors, (11750), 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) [2023-08-04 04:09:46,996 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 470.0) internal successors, (11750), 25 states have internal predecessors, (11750), 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) [2023-08-04 04:09:46,997 INFO L175 Difference]: Start difference. First operand has 55 places, 39 transitions, 234 flow. Second operand 24 states and 4975 transitions. [2023-08-04 04:09:46,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 51 transitions, 400 flow [2023-08-04 04:09:47,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 51 transitions, 392 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-04 04:09:47,001 INFO L231 Difference]: Finished difference. Result has 89 places, 51 transitions, 468 flow [2023-08-04 04:09:47,001 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=470, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=468, PETRI_PLACES=89, PETRI_TRANSITIONS=51} [2023-08-04 04:09:47,003 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 64 predicate places. [2023-08-04 04:09:47,004 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 51 transitions, 468 flow [2023-08-04 04:09:47,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 206.45833333333334) internal successors, (4955), 24 states have internal predecessors, (4955), 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) [2023-08-04 04:09:47,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:09:47,010 INFO L208 CegarLoopForPetriNet]: trace histogram [88, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 04:09:47,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-04 04:09:47,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 04:09:47,245 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:09:47,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:09:47,245 INFO L85 PathProgramCache]: Analyzing trace with hash -211616639, now seen corresponding path program 5 times [2023-08-04 04:09:47,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:09:47,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744043923] [2023-08-04 04:09:47,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:09:47,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:09:48,166 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-04 04:09:48,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [995681108] [2023-08-04 04:09:48,167 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-04 04:09:48,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 04:09:48,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 04:09:48,168 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 04:09:48,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Received shutdown request... [2023-08-04 04:23:42,004 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-04 04:23:42,004 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-04 04:23:43,073 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 [2023-08-04 04:23:43,213 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2023-08-04 04:23:43,254 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-08-04 04:23:43,256 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-08-04 04:23:43,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2023-08-04 04:23:43,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-04 04:23:43,256 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 106 with TraceHistMax 88,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-08-04 04:23:43,258 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-08-04 04:23:43,258 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2023-08-04 04:23:43,260 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was TIMEOUT,TIMEOUT (1/2) [2023-08-04 04:23:43,263 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-04 04:23:43,263 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-04 04:23:43,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.08 04:23:43 BasicIcfg [2023-08-04 04:23:43,265 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-04 04:23:43,268 INFO L158 Benchmark]: Toolchain (without parser) took 877041.86ms. Allocated memory was 440.4MB in the beginning and 635.4MB in the end (delta: 195.0MB). Free memory was 388.3MB in the beginning and 492.6MB in the end (delta: -104.3MB). Peak memory consumption was 210.1MB. Max. memory is 16.0GB. [2023-08-04 04:23:43,268 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 327.2MB. Free memory is still 277.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-04 04:23:43,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 617.15ms. Allocated memory is still 440.4MB. Free memory was 388.0MB in the beginning and 357.2MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-08-04 04:23:43,269 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.04ms. Allocated memory is still 440.4MB. Free memory was 357.2MB in the beginning and 354.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-04 04:23:43,269 INFO L158 Benchmark]: Boogie Preprocessor took 45.19ms. Allocated memory is still 440.4MB. Free memory was 354.2MB in the beginning and 351.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-04 04:23:43,269 INFO L158 Benchmark]: RCFGBuilder took 697.05ms. Allocated memory is still 440.4MB. Free memory was 351.6MB in the beginning and 386.7MB in the end (delta: -35.1MB). Peak memory consumption was 12.4MB. Max. memory is 16.0GB. [2023-08-04 04:23:43,270 INFO L158 Benchmark]: TraceAbstraction took 875609.18ms. Allocated memory was 440.4MB in the beginning and 635.4MB in the end (delta: 195.0MB). Free memory was 385.7MB in the beginning and 492.6MB in the end (delta: -106.9MB). Peak memory consumption was 206.1MB. Max. memory is 16.0GB. [2023-08-04 04:23:43,271 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 327.2MB. Free memory is still 277.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 617.15ms. Allocated memory is still 440.4MB. Free memory was 388.0MB in the beginning and 357.2MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 65.04ms. Allocated memory is still 440.4MB. Free memory was 357.2MB in the beginning and 354.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 45.19ms. Allocated memory is still 440.4MB. Free memory was 354.2MB in the beginning and 351.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 697.05ms. Allocated memory is still 440.4MB. Free memory was 351.6MB in the beginning and 386.7MB in the end (delta: -35.1MB). Peak memory consumption was 12.4MB. Max. memory is 16.0GB. * TraceAbstraction took 875609.18ms. Allocated memory was 440.4MB in the beginning and 635.4MB in the end (delta: 195.0MB). Free memory was 385.7MB in the beginning and 492.6MB in the end (delta: -106.9MB). Peak memory consumption was 206.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.4s, 206 PlacesBefore, 25 PlacesAfterwards, 228 TransitionsBefore, 36 TransitionsAfterwards, 3828 CoEnabledTransitionPairs, 6 FixpointIterations, 109 TrivialSequentialCompositions, 80 ConcurrentSequentialCompositions, 18 TrivialYvCompositions, 19 ConcurrentYvCompositions, 11 ChoiceCompositions, 237 TotalNumberOfCompositions, 3792 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3097, independent: 3030, independent conditional: 0, independent unconditional: 3030, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1960, independent: 1938, independent conditional: 0, independent unconditional: 1938, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3097, independent: 1092, independent conditional: 0, independent unconditional: 1092, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 1960, unknown conditional: 0, unknown unconditional: 1960] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 999]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 106 with TraceHistMax 88,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 279 locations, 3 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: 875.4s, OverallIterations: 7, TraceHistogramMax: 88, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 30.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 802 IncrementalHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 13 mSDtfsCounter, 802 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 207 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=468occurred in iteration=6, InterpolantAutomatonStates: 54, 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: 0.6s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 125 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 11349 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 1917/2051 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 could not prove your program: Timeout Completed graceful shutdown