/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 18:38:33,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 18:38:33,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 18:38:33,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 18:38:33,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 18:38:33,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 18:38:33,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 18:38:33,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 18:38:33,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 18:38:33,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 18:38:33,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 18:38:33,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 18:38:33,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 18:38:33,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 18:38:33,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 18:38:33,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 18:38:33,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 18:38:33,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 18:38:33,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 18:38:33,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 18:38:33,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 18:38:33,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 18:38:33,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 18:38:33,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 18:38:33,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 18:38:33,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 18:38:33,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 18:38:33,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 18:38:33,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 18:38:33,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 18:38:33,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 18:38:33,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 18:38:33,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 18:38:33,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 18:38:33,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 18:38:33,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 18:38:33,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 18:38:34,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 18:38:34,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 18:38:34,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 18:38:34,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 18:38:34,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 18:38:34,034 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 18:38:34,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 18:38:34,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 18:38:34,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 18:38:34,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 18:38:34,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 18:38:34,037 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 18:38:34,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 18:38:34,037 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 18:38:34,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 18:38:34,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 18:38:34,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 18:38:34,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 18:38:34,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 18:38:34,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 18:38:34,038 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 18:38:34,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 18:38:34,039 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 18:38:34,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 18:38:34,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 18:38:34,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 18:38:34,039 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 18:38:34,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 18:38:34,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 18:38:34,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 18:38:34,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 18:38:34,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 18:38:34,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 18:38:34,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 18:38:34,040 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 18:38:34,040 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 18:38:34,040 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 18:38:34,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 18:38:34,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 18:38:34,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 18:38:34,318 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 18:38:34,323 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 18:38:34,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c [2022-12-06 18:38:35,251 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 18:38:35,400 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 18:38:35,401 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c [2022-12-06 18:38:35,407 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ad4a5757/73bcbb7d3b3a4bdc84ff103868b3f2ab/FLAG0814bc809 [2022-12-06 18:38:35,811 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ad4a5757/73bcbb7d3b3a4bdc84ff103868b3f2ab [2022-12-06 18:38:35,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 18:38:35,813 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 18:38:35,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 18:38:35,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 18:38:35,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 18:38:35,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:38:35" (1/1) ... [2022-12-06 18:38:35,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4927829c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:38:35, skipping insertion in model container [2022-12-06 18:38:35,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:38:35" (1/1) ... [2022-12-06 18:38:35,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 18:38:35,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 18:38:35,981 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c[2641,2654] [2022-12-06 18:38:35,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 18:38:35,999 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 18:38:36,015 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-3.wvr.c[2641,2654] [2022-12-06 18:38:36,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 18:38:36,027 INFO L208 MainTranslator]: Completed translation [2022-12-06 18:38:36,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:38:36 WrapperNode [2022-12-06 18:38:36,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 18:38:36,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 18:38:36,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 18:38:36,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 18:38:36,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:38:36" (1/1) ... [2022-12-06 18:38:36,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:38:36" (1/1) ... [2022-12-06 18:38:36,052 INFO L138 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 162 [2022-12-06 18:38:36,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 18:38:36,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 18:38:36,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 18:38:36,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 18:38:36,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:38:36" (1/1) ... [2022-12-06 18:38:36,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:38:36" (1/1) ... [2022-12-06 18:38:36,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:38:36" (1/1) ... [2022-12-06 18:38:36,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:38:36" (1/1) ... [2022-12-06 18:38:36,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:38:36" (1/1) ... [2022-12-06 18:38:36,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:38:36" (1/1) ... [2022-12-06 18:38:36,076 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:38:36" (1/1) ... [2022-12-06 18:38:36,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:38:36" (1/1) ... [2022-12-06 18:38:36,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 18:38:36,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 18:38:36,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 18:38:36,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 18:38:36,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:38:36" (1/1) ... [2022-12-06 18:38:36,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 18:38:36,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:38:36,113 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) [2022-12-06 18:38:36,116 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 [2022-12-06 18:38:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 18:38:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 18:38:36,151 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 18:38:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 18:38:36,151 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 18:38:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 18:38:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 18:38:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 18:38:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 18:38:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 18:38:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 18:38:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 18:38:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 18:38:36,155 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 18:38:36,288 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 18:38:36,289 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 18:38:36,571 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 18:38:36,578 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 18:38:36,578 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-06 18:38:36,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:38:36 BoogieIcfgContainer [2022-12-06 18:38:36,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 18:38:36,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 18:38:36,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 18:38:36,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 18:38:36,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:38:35" (1/3) ... [2022-12-06 18:38:36,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5251e49e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:38:36, skipping insertion in model container [2022-12-06 18:38:36,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:38:36" (2/3) ... [2022-12-06 18:38:36,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5251e49e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:38:36, skipping insertion in model container [2022-12-06 18:38:36,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:38:36" (3/3) ... [2022-12-06 18:38:36,591 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-3.wvr.c [2022-12-06 18:38:36,609 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 18:38:36,610 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 18:38:36,610 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 18:38:36,672 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 18:38:36,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 191 transitions, 398 flow [2022-12-06 18:38:36,765 INFO L130 PetriNetUnfolder]: 18/189 cut-off events. [2022-12-06 18:38:36,766 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 18:38:36,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 189 events. 18/189 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 293 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2022-12-06 18:38:36,771 INFO L82 GeneralOperation]: Start removeDead. Operand has 180 places, 191 transitions, 398 flow [2022-12-06 18:38:36,779 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 181 transitions, 374 flow [2022-12-06 18:38:36,786 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 18:38:36,792 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=false, 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;@6157c9ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 18:38:36,792 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 18:38:36,836 INFO L130 PetriNetUnfolder]: 16/166 cut-off events. [2022-12-06 18:38:36,837 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 18:38:36,843 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:38:36,843 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:38:36,844 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:38:36,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:38:36,847 INFO L85 PathProgramCache]: Analyzing trace with hash 321458864, now seen corresponding path program 1 times [2022-12-06 18:38:36,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:38:36,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876661724] [2022-12-06 18:38:36,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:38:36,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:38:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:38:37,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:38:37,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:38:37,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876661724] [2022-12-06 18:38:37,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876661724] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:38:37,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:38:37,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 18:38:37,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204935758] [2022-12-06 18:38:37,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:38:37,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 18:38:37,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:38:37,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 18:38:37,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 18:38:37,421 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 191 [2022-12-06 18:38:37,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 181 transitions, 374 flow. Second operand has 4 states, 4 states have (on average 154.75) internal successors, (619), 4 states have internal predecessors, (619), 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) [2022-12-06 18:38:37,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:38:37,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 191 [2022-12-06 18:38:37,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:38:37,570 INFO L130 PetriNetUnfolder]: 127/600 cut-off events. [2022-12-06 18:38:37,570 INFO L131 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2022-12-06 18:38:37,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 600 events. 127/600 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2625 event pairs, 47 based on Foata normal form. 54/554 useless extension candidates. Maximal degree in co-relation 734. Up to 162 conditions per place. [2022-12-06 18:38:37,578 INFO L137 encePairwiseOnDemand]: 173/191 looper letters, 34 selfloop transitions, 4 changer transitions 4/181 dead transitions. [2022-12-06 18:38:37,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 181 transitions, 456 flow [2022-12-06 18:38:37,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 18:38:37,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 18:38:37,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 667 transitions. [2022-12-06 18:38:37,592 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8730366492146597 [2022-12-06 18:38:37,595 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 3 predicate places. [2022-12-06 18:38:37,595 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 181 transitions, 456 flow [2022-12-06 18:38:37,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 154.75) internal successors, (619), 4 states have internal predecessors, (619), 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) [2022-12-06 18:38:37,596 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:38:37,597 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:38:37,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 18:38:37,597 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:38:37,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:38:37,600 INFO L85 PathProgramCache]: Analyzing trace with hash -826416595, now seen corresponding path program 1 times [2022-12-06 18:38:37,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:38:37,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637200873] [2022-12-06 18:38:37,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:38:37,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:38:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:38:37,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:38:37,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:38:37,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637200873] [2022-12-06 18:38:37,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637200873] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:38:37,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:38:37,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 18:38:37,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561339956] [2022-12-06 18:38:37,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:38:37,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 18:38:37,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:38:37,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 18:38:37,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 18:38:37,904 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 191 [2022-12-06 18:38:37,904 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 181 transitions, 456 flow. Second operand has 5 states, 5 states have (on average 151.8) internal successors, (759), 5 states have internal predecessors, (759), 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) [2022-12-06 18:38:37,904 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:38:37,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 191 [2022-12-06 18:38:37,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:38:38,174 INFO L130 PetriNetUnfolder]: 290/1416 cut-off events. [2022-12-06 18:38:38,174 INFO L131 PetriNetUnfolder]: For 373/570 co-relation queries the response was YES. [2022-12-06 18:38:38,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2462 conditions, 1416 events. 290/1416 cut-off events. For 373/570 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 9732 event pairs, 105 based on Foata normal form. 7/1237 useless extension candidates. Maximal degree in co-relation 2080. Up to 320 conditions per place. [2022-12-06 18:38:38,183 INFO L137 encePairwiseOnDemand]: 183/191 looper letters, 98 selfloop transitions, 9 changer transitions 4/247 dead transitions. [2022-12-06 18:38:38,183 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 247 transitions, 951 flow [2022-12-06 18:38:38,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 18:38:38,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 18:38:38,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 969 transitions. [2022-12-06 18:38:38,186 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8455497382198953 [2022-12-06 18:38:38,186 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 8 predicate places. [2022-12-06 18:38:38,187 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 247 transitions, 951 flow [2022-12-06 18:38:38,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 151.8) internal successors, (759), 5 states have internal predecessors, (759), 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) [2022-12-06 18:38:38,188 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:38:38,190 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:38:38,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 18:38:38,194 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:38:38,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:38:38,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1729154087, now seen corresponding path program 2 times [2022-12-06 18:38:38,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:38:38,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777279076] [2022-12-06 18:38:38,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:38:38,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:38:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:38:38,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:38:38,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:38:38,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777279076] [2022-12-06 18:38:38,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777279076] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:38:38,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:38:38,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 18:38:38,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266392480] [2022-12-06 18:38:38,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:38:38,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 18:38:38,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:38:38,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 18:38:38,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-06 18:38:38,487 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 191 [2022-12-06 18:38:38,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 247 transitions, 951 flow. Second operand has 6 states, 6 states have (on average 151.33333333333334) internal successors, (908), 6 states have internal predecessors, (908), 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) [2022-12-06 18:38:38,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:38:38,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 191 [2022-12-06 18:38:38,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:38:38,705 INFO L130 PetriNetUnfolder]: 348/1712 cut-off events. [2022-12-06 18:38:38,705 INFO L131 PetriNetUnfolder]: For 794/1127 co-relation queries the response was YES. [2022-12-06 18:38:38,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3617 conditions, 1712 events. 348/1712 cut-off events. For 794/1127 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 12622 event pairs, 102 based on Foata normal form. 21/1511 useless extension candidates. Maximal degree in co-relation 2780. Up to 365 conditions per place. [2022-12-06 18:38:38,713 INFO L137 encePairwiseOnDemand]: 184/191 looper letters, 129 selfloop transitions, 14 changer transitions 4/283 dead transitions. [2022-12-06 18:38:38,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 283 transitions, 1453 flow [2022-12-06 18:38:38,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 18:38:38,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 18:38:38,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 973 transitions. [2022-12-06 18:38:38,715 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8490401396160558 [2022-12-06 18:38:38,716 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 13 predicate places. [2022-12-06 18:38:38,716 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 283 transitions, 1453 flow [2022-12-06 18:38:38,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.33333333333334) internal successors, (908), 6 states have internal predecessors, (908), 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) [2022-12-06 18:38:38,717 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:38:38,717 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:38:38,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 18:38:38,717 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:38:38,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:38:38,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1017053851, now seen corresponding path program 3 times [2022-12-06 18:38:38,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:38:38,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953694340] [2022-12-06 18:38:38,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:38:38,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:38:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:38:38,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:38:38,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:38:38,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953694340] [2022-12-06 18:38:38,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953694340] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:38:38,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:38:38,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 18:38:38,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422453914] [2022-12-06 18:38:38,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:38:38,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 18:38:38,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:38:38,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 18:38:38,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-06 18:38:38,940 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 191 [2022-12-06 18:38:38,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 283 transitions, 1453 flow. Second operand has 6 states, 6 states have (on average 151.33333333333334) internal successors, (908), 6 states have internal predecessors, (908), 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) [2022-12-06 18:38:38,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:38:38,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 191 [2022-12-06 18:38:38,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:38:39,170 INFO L130 PetriNetUnfolder]: 373/1841 cut-off events. [2022-12-06 18:38:39,170 INFO L131 PetriNetUnfolder]: For 1471/1892 co-relation queries the response was YES. [2022-12-06 18:38:39,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4579 conditions, 1841 events. 373/1841 cut-off events. For 1471/1892 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 13831 event pairs, 95 based on Foata normal form. 20/1621 useless extension candidates. Maximal degree in co-relation 3951. Up to 471 conditions per place. [2022-12-06 18:38:39,179 INFO L137 encePairwiseOnDemand]: 184/191 looper letters, 143 selfloop transitions, 23 changer transitions 4/306 dead transitions. [2022-12-06 18:38:39,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 306 transitions, 1941 flow [2022-12-06 18:38:39,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 18:38:39,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 18:38:39,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 956 transitions. [2022-12-06 18:38:39,181 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8342059336823735 [2022-12-06 18:38:39,181 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 18 predicate places. [2022-12-06 18:38:39,181 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 306 transitions, 1941 flow [2022-12-06 18:38:39,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.33333333333334) internal successors, (908), 6 states have internal predecessors, (908), 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) [2022-12-06 18:38:39,182 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:38:39,182 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:38:39,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 18:38:39,182 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:38:39,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:38:39,182 INFO L85 PathProgramCache]: Analyzing trace with hash 913551585, now seen corresponding path program 4 times [2022-12-06 18:38:39,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:38:39,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651325339] [2022-12-06 18:38:39,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:38:39,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:38:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:38:39,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:38:39,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:38:39,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651325339] [2022-12-06 18:38:39,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651325339] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:38:39,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:38:39,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 18:38:39,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230871775] [2022-12-06 18:38:39,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:38:39,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 18:38:39,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:38:39,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 18:38:39,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-06 18:38:39,342 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 191 [2022-12-06 18:38:39,343 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 306 transitions, 1941 flow. Second operand has 6 states, 6 states have (on average 151.33333333333334) internal successors, (908), 6 states have internal predecessors, (908), 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) [2022-12-06 18:38:39,343 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:38:39,343 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 191 [2022-12-06 18:38:39,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:38:39,632 INFO L130 PetriNetUnfolder]: 446/2147 cut-off events. [2022-12-06 18:38:39,632 INFO L131 PetriNetUnfolder]: For 2505/3422 co-relation queries the response was YES. [2022-12-06 18:38:39,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6182 conditions, 2147 events. 446/2147 cut-off events. For 2505/3422 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 16671 event pairs, 121 based on Foata normal form. 40/1901 useless extension candidates. Maximal degree in co-relation 5365. Up to 595 conditions per place. [2022-12-06 18:38:39,641 INFO L137 encePairwiseOnDemand]: 184/191 looper letters, 173 selfloop transitions, 25 changer transitions 4/338 dead transitions. [2022-12-06 18:38:39,642 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 338 transitions, 2655 flow [2022-12-06 18:38:39,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 18:38:39,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 18:38:39,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1115 transitions. [2022-12-06 18:38:39,644 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8339566192969334 [2022-12-06 18:38:39,644 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 24 predicate places. [2022-12-06 18:38:39,644 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 338 transitions, 2655 flow [2022-12-06 18:38:39,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.33333333333334) internal successors, (908), 6 states have internal predecessors, (908), 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) [2022-12-06 18:38:39,645 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:38:39,645 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:38:39,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 18:38:39,645 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:38:39,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:38:39,646 INFO L85 PathProgramCache]: Analyzing trace with hash 76836315, now seen corresponding path program 5 times [2022-12-06 18:38:39,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:38:39,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365569532] [2022-12-06 18:38:39,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:38:39,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:38:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:38:39,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:38:39,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:38:39,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365569532] [2022-12-06 18:38:39,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365569532] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:38:39,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:38:39,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 18:38:39,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061346709] [2022-12-06 18:38:39,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:38:39,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 18:38:39,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:38:39,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 18:38:39,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 18:38:39,758 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 191 [2022-12-06 18:38:39,759 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 338 transitions, 2655 flow. Second operand has 5 states, 5 states have (on average 151.8) internal successors, (759), 5 states have internal predecessors, (759), 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) [2022-12-06 18:38:39,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:38:39,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 191 [2022-12-06 18:38:39,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:38:40,027 INFO L130 PetriNetUnfolder]: 436/2094 cut-off events. [2022-12-06 18:38:40,027 INFO L131 PetriNetUnfolder]: For 3361/4058 co-relation queries the response was YES. [2022-12-06 18:38:40,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6796 conditions, 2094 events. 436/2094 cut-off events. For 3361/4058 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 16125 event pairs, 112 based on Foata normal form. 31/1859 useless extension candidates. Maximal degree in co-relation 5908. Up to 579 conditions per place. [2022-12-06 18:38:40,038 INFO L137 encePairwiseOnDemand]: 184/191 looper letters, 166 selfloop transitions, 21 changer transitions 4/327 dead transitions. [2022-12-06 18:38:40,038 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 327 transitions, 2888 flow [2022-12-06 18:38:40,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 18:38:40,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 18:38:40,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 814 transitions. [2022-12-06 18:38:40,041 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8523560209424084 [2022-12-06 18:38:40,043 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 28 predicate places. [2022-12-06 18:38:40,043 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 327 transitions, 2888 flow [2022-12-06 18:38:40,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 151.8) internal successors, (759), 5 states have internal predecessors, (759), 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) [2022-12-06 18:38:40,043 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:38:40,043 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:38:40,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 18:38:40,044 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:38:40,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:38:40,044 INFO L85 PathProgramCache]: Analyzing trace with hash 891771863, now seen corresponding path program 6 times [2022-12-06 18:38:40,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:38:40,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009214981] [2022-12-06 18:38:40,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:38:40,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:38:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:38:40,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:38:40,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:38:40,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009214981] [2022-12-06 18:38:40,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009214981] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:38:40,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:38:40,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 18:38:40,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658418922] [2022-12-06 18:38:40,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:38:40,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 18:38:40,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:38:40,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 18:38:40,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-06 18:38:40,211 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 191 [2022-12-06 18:38:40,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 327 transitions, 2888 flow. Second operand has 5 states, 5 states have (on average 151.8) internal successors, (759), 5 states have internal predecessors, (759), 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) [2022-12-06 18:38:40,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:38:40,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 191 [2022-12-06 18:38:40,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:38:40,409 INFO L130 PetriNetUnfolder]: 434/2085 cut-off events. [2022-12-06 18:38:40,409 INFO L131 PetriNetUnfolder]: For 4461/5220 co-relation queries the response was YES. [2022-12-06 18:38:40,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7574 conditions, 2085 events. 434/2085 cut-off events. For 4461/5220 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 16149 event pairs, 115 based on Foata normal form. 35/1861 useless extension candidates. Maximal degree in co-relation 6185. Up to 604 conditions per place. [2022-12-06 18:38:40,422 INFO L137 encePairwiseOnDemand]: 184/191 looper letters, 165 selfloop transitions, 21 changer transitions 4/326 dead transitions. [2022-12-06 18:38:40,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 326 transitions, 3246 flow [2022-12-06 18:38:40,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 18:38:40,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 18:38:40,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 805 transitions. [2022-12-06 18:38:40,424 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8429319371727748 [2022-12-06 18:38:40,425 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 32 predicate places. [2022-12-06 18:38:40,425 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 326 transitions, 3246 flow [2022-12-06 18:38:40,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 151.8) internal successors, (759), 5 states have internal predecessors, (759), 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) [2022-12-06 18:38:40,425 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:38:40,425 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:38:40,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 18:38:40,426 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:38:40,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:38:40,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1754924003, now seen corresponding path program 7 times [2022-12-06 18:38:40,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:38:40,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452462045] [2022-12-06 18:38:40,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:38:40,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:38:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:38:40,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:38:40,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:38:40,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452462045] [2022-12-06 18:38:40,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452462045] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:38:40,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:38:40,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 18:38:40,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130720915] [2022-12-06 18:38:40,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:38:40,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 18:38:40,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:38:40,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 18:38:40,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-06 18:38:40,657 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 191 [2022-12-06 18:38:40,658 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 326 transitions, 3246 flow. Second operand has 6 states, 6 states have (on average 151.33333333333334) internal successors, (908), 6 states have internal predecessors, (908), 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) [2022-12-06 18:38:40,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:38:40,658 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 191 [2022-12-06 18:38:40,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:38:40,880 INFO L130 PetriNetUnfolder]: 415/1982 cut-off events. [2022-12-06 18:38:40,880 INFO L131 PetriNetUnfolder]: For 5974/7622 co-relation queries the response was YES. [2022-12-06 18:38:40,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8013 conditions, 1982 events. 415/1982 cut-off events. For 5974/7622 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 14955 event pairs, 112 based on Foata normal form. 25/1748 useless extension candidates. Maximal degree in co-relation 7658. Up to 583 conditions per place. [2022-12-06 18:38:40,890 INFO L137 encePairwiseOnDemand]: 184/191 looper letters, 154 selfloop transitions, 20 changer transitions 4/314 dead transitions. [2022-12-06 18:38:40,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 314 transitions, 3393 flow [2022-12-06 18:38:40,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 18:38:40,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 18:38:40,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 962 transitions. [2022-12-06 18:38:40,893 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8394415357766143 [2022-12-06 18:38:40,895 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 37 predicate places. [2022-12-06 18:38:40,895 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 314 transitions, 3393 flow [2022-12-06 18:38:40,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.33333333333334) internal successors, (908), 6 states have internal predecessors, (908), 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) [2022-12-06 18:38:40,896 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:38:40,896 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:38:40,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 18:38:40,896 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:38:40,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:38:40,896 INFO L85 PathProgramCache]: Analyzing trace with hash -2070400359, now seen corresponding path program 1 times [2022-12-06 18:38:40,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:38:40,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117385521] [2022-12-06 18:38:40,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:38:40,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:38:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:38:41,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:38:41,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:38:41,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117385521] [2022-12-06 18:38:41,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117385521] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:38:41,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588014368] [2022-12-06 18:38:41,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:38:41,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:38:41,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:38:41,189 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) [2022-12-06 18:38:41,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 18:38:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:38:41,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-06 18:38:41,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:38:41,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-06 18:38:41,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:38:41,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:38:41,780 INFO L321 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2022-12-06 18:38:41,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-12-06 18:38:41,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:38:41,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588014368] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:38:41,841 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:38:41,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 9] total 23 [2022-12-06 18:38:41,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942041625] [2022-12-06 18:38:41,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:38:41,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-06 18:38:41,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:38:41,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-06 18:38:41,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2022-12-06 18:38:41,844 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 191 [2022-12-06 18:38:41,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 314 transitions, 3393 flow. Second operand has 23 states, 23 states have (on average 95.17391304347827) internal successors, (2189), 23 states have internal predecessors, (2189), 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) [2022-12-06 18:38:41,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:38:41,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 191 [2022-12-06 18:38:41,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:38:45,478 INFO L130 PetriNetUnfolder]: 6828/15540 cut-off events. [2022-12-06 18:38:45,478 INFO L131 PetriNetUnfolder]: For 67568/67894 co-relation queries the response was YES. [2022-12-06 18:38:45,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62433 conditions, 15540 events. 6828/15540 cut-off events. For 67568/67894 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 141022 event pairs, 404 based on Foata normal form. 24/14162 useless extension candidates. Maximal degree in co-relation 58606. Up to 3253 conditions per place. [2022-12-06 18:38:45,558 INFO L137 encePairwiseOnDemand]: 155/191 looper letters, 869 selfloop transitions, 190 changer transitions 16/1154 dead transitions. [2022-12-06 18:38:45,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 1154 transitions, 14870 flow [2022-12-06 18:38:45,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-12-06 18:38:45,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2022-12-06 18:38:45,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 5836 transitions. [2022-12-06 18:38:45,569 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5268098934825781 [2022-12-06 18:38:45,569 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 94 predicate places. [2022-12-06 18:38:45,569 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 1154 transitions, 14870 flow [2022-12-06 18:38:45,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 95.17391304347827) internal successors, (2189), 23 states have internal predecessors, (2189), 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) [2022-12-06 18:38:45,570 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:38:45,571 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:38:45,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-06 18:38:45,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:38:45,776 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:38:45,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:38:45,776 INFO L85 PathProgramCache]: Analyzing trace with hash -197708873, now seen corresponding path program 2 times [2022-12-06 18:38:45,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:38:45,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535624328] [2022-12-06 18:38:45,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:38:45,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:38:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:38:46,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:38:46,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:38:46,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535624328] [2022-12-06 18:38:46,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535624328] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:38:46,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089707810] [2022-12-06 18:38:46,075 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 18:38:46,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:38:46,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:38:46,076 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) [2022-12-06 18:38:46,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 18:38:46,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-06 18:38:46,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 18:38:46,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-06 18:38:46,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:38:46,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:38:46,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 18:38:46,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089707810] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:38:46,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 18:38:46,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2022-12-06 18:38:46,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003436101] [2022-12-06 18:38:46,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:38:46,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 18:38:46,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:38:46,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 18:38:46,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-12-06 18:38:46,234 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 191 [2022-12-06 18:38:46,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 1154 transitions, 14870 flow. Second operand has 8 states, 8 states have (on average 138.75) internal successors, (1110), 8 states have internal predecessors, (1110), 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) [2022-12-06 18:38:46,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:38:46,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 191 [2022-12-06 18:38:46,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:38:47,994 INFO L130 PetriNetUnfolder]: 6836/15477 cut-off events. [2022-12-06 18:38:47,994 INFO L131 PetriNetUnfolder]: For 70738/71016 co-relation queries the response was YES. [2022-12-06 18:38:48,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63836 conditions, 15477 events. 6836/15477 cut-off events. For 70738/71016 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 139977 event pairs, 489 based on Foata normal form. 2/14089 useless extension candidates. Maximal degree in co-relation 59802. Up to 3253 conditions per place. [2022-12-06 18:38:48,081 INFO L137 encePairwiseOnDemand]: 178/191 looper letters, 175 selfloop transitions, 11 changer transitions 15/1157 dead transitions. [2022-12-06 18:38:48,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 1157 transitions, 15272 flow [2022-12-06 18:38:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 18:38:48,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 18:38:48,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1532 transitions. [2022-12-06 18:38:48,083 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.729176582579724 [2022-12-06 18:38:48,084 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 103 predicate places. [2022-12-06 18:38:48,084 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 1157 transitions, 15272 flow [2022-12-06 18:38:48,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 138.75) internal successors, (1110), 8 states have internal predecessors, (1110), 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) [2022-12-06 18:38:48,085 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:38:48,085 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:38:48,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-06 18:38:48,289 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,SelfDestructingSolverStorable9 [2022-12-06 18:38:48,290 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:38:48,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:38:48,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1009283584, now seen corresponding path program 1 times [2022-12-06 18:38:48,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:38:48,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363731234] [2022-12-06 18:38:48,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:38:48,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:38:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:38:48,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:38:48,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:38:48,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363731234] [2022-12-06 18:38:48,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363731234] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:38:48,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633987269] [2022-12-06 18:38:48,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:38:48,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:38:48,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:38:48,635 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) [2022-12-06 18:38:48,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 18:38:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:38:48,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-06 18:38:48,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:38:49,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-06 18:38:49,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:38:49,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:38:49,140 INFO L321 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2022-12-06 18:38:49,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-12-06 18:38:49,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:38:49,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633987269] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:38:49,219 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:38:49,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 9] total 22 [2022-12-06 18:38:49,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859097404] [2022-12-06 18:38:49,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:38:49,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-06 18:38:49,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:38:49,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-06 18:38:49,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2022-12-06 18:38:49,221 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 191 [2022-12-06 18:38:49,223 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 1157 transitions, 15272 flow. Second operand has 22 states, 22 states have (on average 95.31818181818181) internal successors, (2097), 22 states have internal predecessors, (2097), 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) [2022-12-06 18:38:49,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:38:49,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 191 [2022-12-06 18:38:49,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:38:53,074 INFO L130 PetriNetUnfolder]: 8104/18259 cut-off events. [2022-12-06 18:38:53,074 INFO L131 PetriNetUnfolder]: For 90007/91141 co-relation queries the response was YES. [2022-12-06 18:38:53,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88011 conditions, 18259 events. 8104/18259 cut-off events. For 90007/91141 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 170160 event pairs, 436 based on Foata normal form. 139/16810 useless extension candidates. Maximal degree in co-relation 81731. Up to 6930 conditions per place. [2022-12-06 18:38:53,173 INFO L137 encePairwiseOnDemand]: 157/191 looper letters, 1329 selfloop transitions, 260 changer transitions 21/1692 dead transitions. [2022-12-06 18:38:53,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 1692 transitions, 23724 flow [2022-12-06 18:38:53,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-12-06 18:38:53,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2022-12-06 18:38:53,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 6274 transitions. [2022-12-06 18:38:53,178 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5053564236810311 [2022-12-06 18:38:53,178 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 167 predicate places. [2022-12-06 18:38:53,178 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 1692 transitions, 23724 flow [2022-12-06 18:38:53,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 95.31818181818181) internal successors, (2097), 22 states have internal predecessors, (2097), 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) [2022-12-06 18:38:53,179 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:38:53,179 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:38:53,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-06 18:38:53,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:38:53,386 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:38:53,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:38:53,387 INFO L85 PathProgramCache]: Analyzing trace with hash -555947876, now seen corresponding path program 2 times [2022-12-06 18:38:53,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:38:53,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655432637] [2022-12-06 18:38:53,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:38:53,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:38:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:38:53,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:38:53,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:38:53,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655432637] [2022-12-06 18:38:53,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655432637] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:38:53,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:38:53,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 18:38:53,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960270302] [2022-12-06 18:38:53,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:38:53,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 18:38:53,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:38:53,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 18:38:53,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-06 18:38:53,603 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 191 [2022-12-06 18:38:53,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 1692 transitions, 23724 flow. Second operand has 8 states, 8 states have (on average 150.25) internal successors, (1202), 8 states have internal predecessors, (1202), 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) [2022-12-06 18:38:53,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:38:53,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 191 [2022-12-06 18:38:53,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:38:56,231 INFO L130 PetriNetUnfolder]: 8413/18995 cut-off events. [2022-12-06 18:38:56,232 INFO L131 PetriNetUnfolder]: For 117393/118356 co-relation queries the response was YES. [2022-12-06 18:38:56,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96852 conditions, 18995 events. 8413/18995 cut-off events. For 117393/118356 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 178027 event pairs, 507 based on Foata normal form. 18/17370 useless extension candidates. Maximal degree in co-relation 89178. Up to 7015 conditions per place. [2022-12-06 18:38:56,349 INFO L137 encePairwiseOnDemand]: 179/191 looper letters, 729 selfloop transitions, 146 changer transitions 21/1728 dead transitions. [2022-12-06 18:38:56,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 1728 transitions, 26178 flow [2022-12-06 18:38:56,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 18:38:56,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 18:38:56,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1430 transitions. [2022-12-06 18:38:56,351 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8318789994182665 [2022-12-06 18:38:56,352 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 175 predicate places. [2022-12-06 18:38:56,352 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 1728 transitions, 26178 flow [2022-12-06 18:38:56,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 150.25) internal successors, (1202), 8 states have internal predecessors, (1202), 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) [2022-12-06 18:38:56,352 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:38:56,352 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:38:56,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-06 18:38:56,353 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:38:56,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:38:56,353 INFO L85 PathProgramCache]: Analyzing trace with hash -596277596, now seen corresponding path program 3 times [2022-12-06 18:38:56,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:38:56,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94636429] [2022-12-06 18:38:56,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:38:56,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:38:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:38:56,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:38:56,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:38:56,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94636429] [2022-12-06 18:38:56,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94636429] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:38:56,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:38:56,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 18:38:56,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261331121] [2022-12-06 18:38:56,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:38:56,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 18:38:56,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:38:56,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 18:38:56,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-06 18:38:56,610 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 191 [2022-12-06 18:38:56,611 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 1728 transitions, 26178 flow. Second operand has 9 states, 9 states have (on average 150.0) internal successors, (1350), 9 states have internal predecessors, (1350), 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) [2022-12-06 18:38:56,611 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:38:56,611 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 191 [2022-12-06 18:38:56,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:38:59,774 INFO L130 PetriNetUnfolder]: 9750/21970 cut-off events. [2022-12-06 18:38:59,775 INFO L131 PetriNetUnfolder]: For 164275/165502 co-relation queries the response was YES. [2022-12-06 18:38:59,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118076 conditions, 21970 events. 9750/21970 cut-off events. For 164275/165502 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 212675 event pairs, 530 based on Foata normal form. 22/20138 useless extension candidates. Maximal degree in co-relation 108289. Up to 9144 conditions per place. [2022-12-06 18:38:59,896 INFO L137 encePairwiseOnDemand]: 179/191 looper letters, 803 selfloop transitions, 170 changer transitions 21/1826 dead transitions. [2022-12-06 18:38:59,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 1826 transitions, 30504 flow [2022-12-06 18:38:59,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 18:38:59,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 18:38:59,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1590 transitions. [2022-12-06 18:38:59,898 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8324607329842932 [2022-12-06 18:38:59,898 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 184 predicate places. [2022-12-06 18:38:59,898 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 1826 transitions, 30504 flow [2022-12-06 18:38:59,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 150.0) internal successors, (1350), 9 states have internal predecessors, (1350), 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) [2022-12-06 18:38:59,899 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:38:59,899 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:38:59,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-06 18:38:59,899 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:38:59,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:38:59,899 INFO L85 PathProgramCache]: Analyzing trace with hash 127259118, now seen corresponding path program 4 times [2022-12-06 18:38:59,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:38:59,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779609719] [2022-12-06 18:38:59,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:38:59,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:38:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:39:00,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:39:00,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:39:00,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779609719] [2022-12-06 18:39:00,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779609719] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:39:00,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:39:00,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 18:39:00,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437150041] [2022-12-06 18:39:00,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:39:00,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 18:39:00,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:39:00,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 18:39:00,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-06 18:39:00,110 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 191 [2022-12-06 18:39:00,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 1826 transitions, 30504 flow. Second operand has 9 states, 9 states have (on average 150.0) internal successors, (1350), 9 states have internal predecessors, (1350), 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) [2022-12-06 18:39:00,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:39:00,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 191 [2022-12-06 18:39:00,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:39:03,798 INFO L130 PetriNetUnfolder]: 10437/23610 cut-off events. [2022-12-06 18:39:03,798 INFO L131 PetriNetUnfolder]: For 209267/210772 co-relation queries the response was YES. [2022-12-06 18:39:03,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133167 conditions, 23610 events. 10437/23610 cut-off events. For 209267/210772 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 232453 event pairs, 589 based on Foata normal form. 36/21651 useless extension candidates. Maximal degree in co-relation 121864. Up to 10167 conditions per place. [2022-12-06 18:39:03,923 INFO L137 encePairwiseOnDemand]: 179/191 looper letters, 888 selfloop transitions, 196 changer transitions 21/1937 dead transitions. [2022-12-06 18:39:03,923 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 1937 transitions, 35589 flow [2022-12-06 18:39:03,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 18:39:03,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 18:39:03,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2049 transitions. [2022-12-06 18:39:03,925 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8252114377768828 [2022-12-06 18:39:03,925 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 196 predicate places. [2022-12-06 18:39:03,925 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 1937 transitions, 35589 flow [2022-12-06 18:39:03,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 150.0) internal successors, (1350), 9 states have internal predecessors, (1350), 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) [2022-12-06 18:39:03,926 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:39:03,926 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:39:03,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-06 18:39:03,926 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:39:03,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:39:03,927 INFO L85 PathProgramCache]: Analyzing trace with hash -203242938, now seen corresponding path program 5 times [2022-12-06 18:39:03,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:39:03,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637865202] [2022-12-06 18:39:03,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:39:03,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:39:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:39:04,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:39:04,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:39:04,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637865202] [2022-12-06 18:39:04,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637865202] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:39:04,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804485357] [2022-12-06 18:39:04,150 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-06 18:39:04,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:39:04,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:39:04,164 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) [2022-12-06 18:39:04,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-06 18:39:04,241 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 18:39:04,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 18:39:04,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 43 conjunts are in the unsatisfiable core [2022-12-06 18:39:04,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:39:04,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-06 18:39:04,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 18:39:04,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 18:39:04,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 18:39:04,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-06 18:39:04,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:39:04,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:39:05,033 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_208 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_208) c_~f~0.base) (+ (* c_~x2~0 4) c_~f~0.offset)) |c_thread1Thread1of1ForFork0_#t~mem1#1|)) is different from false [2022-12-06 18:39:05,048 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_208 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_208) c_~f~0.base) (+ (* c_~x2~0 4) c_~f~0.offset)) (select (select |c_#memory_int| c_~f~0.base) (+ (* c_~x1~0 4) c_~f~0.offset)))) is different from false [2022-12-06 18:39:05,071 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_207 (Array Int Int)) (v_ArrVal_208 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_207))) (= (select (select .cse0 c_~f~0.base) (+ (* c_~x1~0 4) c_~f~0.offset)) (select (select (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_208) c_~f~0.base) (+ (* c_~x2~0 4) c_~f~0.offset))))) is different from false [2022-12-06 18:39:05,084 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_207 (Array Int Int)) (v_ArrVal_208 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_207))) (= (select (select .cse0 |c_ULTIMATE.start_main_#t~ret15#1.base|) (+ (* c_~x1~0 4) |c_ULTIMATE.start_main_#t~ret15#1.offset|)) (select (select (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_main_#t~ret15#1.base|) (+ (* c_~x2~0 4) |c_ULTIMATE.start_main_#t~ret15#1.offset|))))) is different from false [2022-12-06 18:39:05,127 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_207 (Array Int Int)) (v_ArrVal_208 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_207))) (= (select (select (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_208) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) (+ (* c_~x2~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (select (select .cse0 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) (+ (* c_~x1~0 4) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))))) is different from false [2022-12-06 18:39:05,146 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 18:39:05,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 41 [2022-12-06 18:39:05,153 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 18:39:05,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 202 treesize of output 166 [2022-12-06 18:39:05,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 130 [2022-12-06 18:39:05,163 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 18:39:05,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 130 treesize of output 106 [2022-12-06 18:39:05,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-12-06 18:39:05,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804485357] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:39:05,371 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:39:05,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 20, 18] total 38 [2022-12-06 18:39:05,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050156037] [2022-12-06 18:39:05,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:39:05,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-12-06 18:39:05,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:39:05,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-12-06 18:39:05,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=935, Unknown=19, NotChecked=330, Total=1406 [2022-12-06 18:39:05,374 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 191 [2022-12-06 18:39:05,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 1937 transitions, 35589 flow. Second operand has 38 states, 38 states have (on average 80.94736842105263) internal successors, (3076), 38 states have internal predecessors, (3076), 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) [2022-12-06 18:39:05,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:39:05,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 191 [2022-12-06 18:39:05,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:39:16,875 INFO L130 PetriNetUnfolder]: 15929/35623 cut-off events. [2022-12-06 18:39:16,876 INFO L131 PetriNetUnfolder]: For 327798/333369 co-relation queries the response was YES. [2022-12-06 18:39:16,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224745 conditions, 35623 events. 15929/35623 cut-off events. For 327798/333369 co-relation queries the response was YES. Maximal size of possible extension queue 1076. Compared 376271 event pairs, 673 based on Foata normal form. 437/33212 useless extension candidates. Maximal degree in co-relation 209324. Up to 16227 conditions per place. [2022-12-06 18:39:17,087 INFO L137 encePairwiseOnDemand]: 145/191 looper letters, 2405 selfloop transitions, 705 changer transitions 41/3227 dead transitions. [2022-12-06 18:39:17,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 3227 transitions, 64543 flow [2022-12-06 18:39:17,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-12-06 18:39:17,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2022-12-06 18:39:17,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 8364 transitions. [2022-12-06 18:39:17,115 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4468426113901058 [2022-12-06 18:39:17,116 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 293 predicate places. [2022-12-06 18:39:17,116 INFO L495 AbstractCegarLoop]: Abstraction has has 463 places, 3227 transitions, 64543 flow [2022-12-06 18:39:17,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 80.94736842105263) internal successors, (3076), 38 states have internal predecessors, (3076), 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) [2022-12-06 18:39:17,117 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:39:17,117 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:39:17,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-06 18:39:17,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-06 18:39:17,321 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:39:17,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:39:17,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1098084120, now seen corresponding path program 6 times [2022-12-06 18:39:17,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:39:17,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784692413] [2022-12-06 18:39:17,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:39:17,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:39:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:39:17,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:39:17,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:39:17,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784692413] [2022-12-06 18:39:17,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784692413] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:39:17,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387303266] [2022-12-06 18:39:17,539 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-06 18:39:17,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:39:17,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:39:17,540 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) [2022-12-06 18:39:17,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-06 18:39:17,607 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-12-06 18:39:17,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 18:39:17,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 34 conjunts are in the unsatisfiable core [2022-12-06 18:39:17,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:39:17,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 18:39:17,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-06 18:39:18,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-06 18:39:18,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:39:18,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:39:18,183 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_233 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_233) c_~f~0.base) (+ (* c_~x2~0 4) c_~f~0.offset)) c_~x1~0)) is different from false [2022-12-06 18:39:18,234 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 18:39:18,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 34 [2022-12-06 18:39:18,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-12-06 18:39:18,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:39:18,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387303266] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:39:18,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:39:18,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 17, 16] total 33 [2022-12-06 18:39:18,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830091703] [2022-12-06 18:39:18,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:39:18,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-12-06 18:39:18,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:39:18,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-12-06 18:39:18,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=886, Unknown=9, NotChecked=60, Total=1056 [2022-12-06 18:39:18,700 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 191 [2022-12-06 18:39:18,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 3227 transitions, 64543 flow. Second operand has 33 states, 33 states have (on average 88.24242424242425) internal successors, (2912), 33 states have internal predecessors, (2912), 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) [2022-12-06 18:39:18,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:39:18,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 191 [2022-12-06 18:39:18,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:39:44,453 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (div c_~n~0 4294967296)) (.cse5 (div (+ 4294967294 c_~n~0) 4294967296))) (let ((.cse0 (* .cse5 4294967296)) (.cse1 (<= |c_thread1Thread1of1ForFork0_~i~0#1| 1)) (.cse2 (<= (+ 1 .cse4) (+ (div |c_thread1Thread1of1ForFork0_~i~0#1| 4294967296) .cse5))) (.cse3 (+ (* c_~x2~0 4) c_~f~0.offset))) (and (= |c_thread2Thread1of1ForFork1_~i~1#1| 0) (<= (+ .cse0 |c_thread1Thread1of1ForFork0_~i~0#1|) (+ 4294967295 c_~n~0)) (or (<= (+ .cse0 1) (+ (* (div |c_thread2Thread1of1ForFork1_~i~1#1| 4294967296) 4294967296) c_~n~0)) (and .cse1 .cse2)) (forall ((v_ArrVal_233 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_233) c_~f~0.base) .cse3) |c_thread1Thread1of1ForFork0_#t~mem1#1|)) (or .cse1 (not .cse2)) (= c_~x1~0 (select (select |c_#memory_int| c_~f~0.base) .cse3)) .cse2 (or (<= (+ (* 4294967296 .cse4) 1) (+ (* (div (+ (- 1) c_~n~0) 4294967296) 4294967296) |c_thread1Thread1of1ForFork0_~i~0#1|)) .cse2) (forall ((v_ArrVal_233 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_233) c_~f~0.base) .cse3) c_~x1~0))))) is different from false [2022-12-06 18:39:44,648 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (div c_~n~0 4294967296)) (.cse0 (div (+ 4294967294 c_~n~0) 4294967296))) (let ((.cse2 (<= (+ 1 .cse3) (+ (div |c_thread1Thread1of1ForFork0_~i~0#1| 4294967296) .cse0))) (.cse1 (+ (* c_~x2~0 4) c_~f~0.offset))) (and (<= (+ (* .cse0 4294967296) |c_thread1Thread1of1ForFork0_~i~0#1|) (+ 4294967295 c_~n~0)) (forall ((v_ArrVal_233 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_233) c_~f~0.base) .cse1) |c_thread1Thread1of1ForFork0_#t~mem1#1|)) (or (<= |c_thread1Thread1of1ForFork0_~i~0#1| 1) (not .cse2)) (= c_~x1~0 (select (select |c_#memory_int| c_~f~0.base) .cse1)) .cse2 (or (<= (+ (* 4294967296 .cse3) 1) (+ (* (div (+ (- 1) c_~n~0) 4294967296) 4294967296) |c_thread1Thread1of1ForFork0_~i~0#1|)) .cse2) (forall ((v_ArrVal_233 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_233) c_~f~0.base) .cse1) c_~x1~0))))) is different from false [2022-12-06 18:39:53,023 INFO L130 PetriNetUnfolder]: 19639/43535 cut-off events. [2022-12-06 18:39:53,023 INFO L131 PetriNetUnfolder]: For 453212/459980 co-relation queries the response was YES. [2022-12-06 18:39:53,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315352 conditions, 43535 events. 19639/43535 cut-off events. For 453212/459980 co-relation queries the response was YES. Maximal size of possible extension queue 1271. Compared 469720 event pairs, 460 based on Foata normal form. 731/41067 useless extension candidates. Maximal degree in co-relation 298214. Up to 22044 conditions per place. [2022-12-06 18:39:53,353 INFO L137 encePairwiseOnDemand]: 145/191 looper letters, 3254 selfloop transitions, 1419 changer transitions 48/4805 dead transitions. [2022-12-06 18:39:53,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 4805 transitions, 105927 flow [2022-12-06 18:39:53,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2022-12-06 18:39:53,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2022-12-06 18:39:53,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 11194 transitions. [2022-12-06 18:39:53,361 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4843580978754706 [2022-12-06 18:39:53,362 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 413 predicate places. [2022-12-06 18:39:53,362 INFO L495 AbstractCegarLoop]: Abstraction has has 583 places, 4805 transitions, 105927 flow [2022-12-06 18:39:53,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 88.24242424242425) internal successors, (2912), 33 states have internal predecessors, (2912), 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) [2022-12-06 18:39:53,363 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:39:53,363 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:39:53,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-06 18:39:53,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-06 18:39:53,568 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:39:53,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:39:53,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1260953312, now seen corresponding path program 7 times [2022-12-06 18:39:53,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:39:53,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805280669] [2022-12-06 18:39:53,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:39:53,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:39:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:39:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:39:53,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:39:53,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805280669] [2022-12-06 18:39:53,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805280669] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:39:53,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115659335] [2022-12-06 18:39:53,805 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-06 18:39:53,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:39:53,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:39:53,806 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 18:39:53,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-06 18:39:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:39:53,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-06 18:39:53,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:39:54,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-06 18:39:54,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:39:54,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:39:54,279 INFO L321 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2022-12-06 18:39:54,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-12-06 18:39:54,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:39:54,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115659335] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:39:54,489 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:39:54,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 15, 9] total 21 [2022-12-06 18:39:54,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005007907] [2022-12-06 18:39:54,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:39:54,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-06 18:39:54,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:39:54,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-06 18:39:54,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-12-06 18:39:54,491 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 191 [2022-12-06 18:39:54,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 4805 transitions, 105927 flow. Second operand has 21 states, 21 states have (on average 95.66666666666667) internal successors, (2009), 21 states have internal predecessors, (2009), 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) [2022-12-06 18:39:54,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:39:54,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 191 [2022-12-06 18:39:54,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:40:15,978 INFO L130 PetriNetUnfolder]: 21234/46914 cut-off events. [2022-12-06 18:40:15,979 INFO L131 PetriNetUnfolder]: For 524058/531229 co-relation queries the response was YES. [2022-12-06 18:40:16,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375526 conditions, 46914 events. 21234/46914 cut-off events. For 524058/531229 co-relation queries the response was YES. Maximal size of possible extension queue 1396. Compared 513347 event pairs, 447 based on Foata normal form. 384/43920 useless extension candidates. Maximal degree in co-relation 356393. Up to 23664 conditions per place. [2022-12-06 18:40:16,338 INFO L137 encePairwiseOnDemand]: 158/191 looper letters, 4891 selfloop transitions, 804 changer transitions 54/5836 dead transitions. [2022-12-06 18:40:16,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 654 places, 5836 transitions, 134347 flow [2022-12-06 18:40:16,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-12-06 18:40:16,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2022-12-06 18:40:16,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 6922 transitions. [2022-12-06 18:40:16,342 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5033449680046539 [2022-12-06 18:40:16,343 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 484 predicate places. [2022-12-06 18:40:16,343 INFO L495 AbstractCegarLoop]: Abstraction has has 654 places, 5836 transitions, 134347 flow [2022-12-06 18:40:16,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 95.66666666666667) internal successors, (2009), 21 states have internal predecessors, (2009), 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) [2022-12-06 18:40:16,344 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:40:16,344 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:40:16,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-06 18:40:16,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-06 18:40:16,549 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:40:16,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:40:16,549 INFO L85 PathProgramCache]: Analyzing trace with hash 920150356, now seen corresponding path program 8 times [2022-12-06 18:40:16,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:40:16,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509986500] [2022-12-06 18:40:16,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:40:16,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:40:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:40:16,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:40:16,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:40:16,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509986500] [2022-12-06 18:40:16,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509986500] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:40:16,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:40:16,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 18:40:16,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612982345] [2022-12-06 18:40:16,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:40:16,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 18:40:16,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:40:16,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 18:40:16,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-06 18:40:16,780 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 191 [2022-12-06 18:40:16,781 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 5836 transitions, 134347 flow. Second operand has 7 states, 7 states have (on average 150.57142857142858) internal successors, (1054), 7 states have internal predecessors, (1054), 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) [2022-12-06 18:40:16,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:40:16,781 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 191 [2022-12-06 18:40:16,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:40:37,981 INFO L130 PetriNetUnfolder]: 22670/50091 cut-off events. [2022-12-06 18:40:37,981 INFO L131 PetriNetUnfolder]: For 640023/647938 co-relation queries the response was YES. [2022-12-06 18:40:38,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415499 conditions, 50091 events. 22670/50091 cut-off events. For 640023/647938 co-relation queries the response was YES. Maximal size of possible extension queue 1543. Compared 555397 event pairs, 613 based on Foata normal form. 101/46660 useless extension candidates. Maximal degree in co-relation 393159. Up to 26094 conditions per place. [2022-12-06 18:40:38,485 INFO L137 encePairwiseOnDemand]: 181/191 looper letters, 2572 selfloop transitions, 527 changer transitions 56/5997 dead transitions. [2022-12-06 18:40:38,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 662 places, 5997 transitions, 145924 flow [2022-12-06 18:40:38,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 18:40:38,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 18:40:38,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1428 transitions. [2022-12-06 18:40:38,486 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8307155322862129 [2022-12-06 18:40:38,486 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 492 predicate places. [2022-12-06 18:40:38,487 INFO L495 AbstractCegarLoop]: Abstraction has has 662 places, 5997 transitions, 145924 flow [2022-12-06 18:40:38,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 150.57142857142858) internal successors, (1054), 7 states have internal predecessors, (1054), 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) [2022-12-06 18:40:38,487 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:40:38,487 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:40:38,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-06 18:40:38,487 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:40:38,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:40:38,488 INFO L85 PathProgramCache]: Analyzing trace with hash -326390846, now seen corresponding path program 9 times [2022-12-06 18:40:38,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:40:38,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460464752] [2022-12-06 18:40:38,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:40:38,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:40:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:40:38,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:40:38,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:40:38,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460464752] [2022-12-06 18:40:38,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460464752] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:40:38,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:40:38,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 18:40:38,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305789928] [2022-12-06 18:40:38,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:40:38,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 18:40:38,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:40:38,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 18:40:38,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-06 18:40:38,711 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 191 [2022-12-06 18:40:38,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 662 places, 5997 transitions, 145924 flow. Second operand has 8 states, 8 states have (on average 150.25) internal successors, (1202), 8 states have internal predecessors, (1202), 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) [2022-12-06 18:40:38,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:40:38,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 191 [2022-12-06 18:40:38,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:41:06,080 INFO L130 PetriNetUnfolder]: 25919/57677 cut-off events. [2022-12-06 18:41:06,080 INFO L131 PetriNetUnfolder]: For 862548/873084 co-relation queries the response was YES. [2022-12-06 18:41:06,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494240 conditions, 57677 events. 25919/57677 cut-off events. For 862548/873084 co-relation queries the response was YES. Maximal size of possible extension queue 1884. Compared 658801 event pairs, 550 based on Foata normal form. 263/53925 useless extension candidates. Maximal degree in co-relation 467205. Up to 31151 conditions per place. [2022-12-06 18:41:06,532 INFO L137 encePairwiseOnDemand]: 181/191 looper letters, 3138 selfloop transitions, 545 changer transitions 56/6581 dead transitions. [2022-12-06 18:41:06,532 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 671 places, 6581 transitions, 174190 flow [2022-12-06 18:41:06,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 18:41:06,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 18:41:06,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1581 transitions. [2022-12-06 18:41:06,560 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8277486910994765 [2022-12-06 18:41:06,561 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 501 predicate places. [2022-12-06 18:41:06,561 INFO L495 AbstractCegarLoop]: Abstraction has has 671 places, 6581 transitions, 174190 flow [2022-12-06 18:41:06,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 150.25) internal successors, (1202), 8 states have internal predecessors, (1202), 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) [2022-12-06 18:41:06,561 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:41:06,561 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:41:06,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-06 18:41:06,562 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:41:06,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:41:06,562 INFO L85 PathProgramCache]: Analyzing trace with hash 255353026, now seen corresponding path program 10 times [2022-12-06 18:41:06,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:41:06,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855553717] [2022-12-06 18:41:06,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:41:06,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:41:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:41:06,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:41:06,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:41:06,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855553717] [2022-12-06 18:41:06,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855553717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:41:06,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:41:06,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 18:41:06,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353342055] [2022-12-06 18:41:06,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:41:06,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 18:41:06,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:41:06,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 18:41:06,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-06 18:41:06,774 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 191 [2022-12-06 18:41:06,774 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 671 places, 6581 transitions, 174190 flow. Second operand has 8 states, 8 states have (on average 150.25) internal successors, (1202), 8 states have internal predecessors, (1202), 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) [2022-12-06 18:41:06,774 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:41:06,774 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 191 [2022-12-06 18:41:06,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:41:39,986 INFO L130 PetriNetUnfolder]: 26896/59868 cut-off events. [2022-12-06 18:41:39,995 INFO L131 PetriNetUnfolder]: For 1024211/1036775 co-relation queries the response was YES. [2022-12-06 18:41:40,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530820 conditions, 59868 events. 26896/59868 cut-off events. For 1024211/1036775 co-relation queries the response was YES. Maximal size of possible extension queue 1996. Compared 688512 event pairs, 637 based on Foata normal form. 508/56152 useless extension candidates. Maximal degree in co-relation 500911. Up to 32606 conditions per place. [2022-12-06 18:41:40,473 INFO L137 encePairwiseOnDemand]: 181/191 looper letters, 3015 selfloop transitions, 819 changer transitions 56/6732 dead transitions. [2022-12-06 18:41:40,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 682 places, 6732 transitions, 187625 flow [2022-12-06 18:41:40,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 18:41:40,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 18:41:40,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1886 transitions. [2022-12-06 18:41:40,475 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8228621291448517 [2022-12-06 18:41:40,475 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 512 predicate places. [2022-12-06 18:41:40,475 INFO L495 AbstractCegarLoop]: Abstraction has has 682 places, 6732 transitions, 187625 flow [2022-12-06 18:41:40,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 150.25) internal successors, (1202), 8 states have internal predecessors, (1202), 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) [2022-12-06 18:41:40,475 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:41:40,475 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:41:40,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-06 18:41:40,476 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:41:40,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:41:40,476 INFO L85 PathProgramCache]: Analyzing trace with hash 579523014, now seen corresponding path program 11 times [2022-12-06 18:41:40,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:41:40,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894726839] [2022-12-06 18:41:40,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:41:40,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:41:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:41:40,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:41:40,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:41:40,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894726839] [2022-12-06 18:41:40,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894726839] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:41:40,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:41:40,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 18:41:40,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585427971] [2022-12-06 18:41:40,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:41:40,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 18:41:40,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:41:40,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 18:41:40,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-06 18:41:40,713 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 191 [2022-12-06 18:41:40,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 682 places, 6732 transitions, 187625 flow. Second operand has 7 states, 7 states have (on average 150.57142857142858) internal successors, (1054), 7 states have internal predecessors, (1054), 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) [2022-12-06 18:41:40,713 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:41:40,713 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 191 [2022-12-06 18:41:40,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:42:17,124 INFO L130 PetriNetUnfolder]: 27892/62210 cut-off events. [2022-12-06 18:42:17,124 INFO L131 PetriNetUnfolder]: For 1187775/1200514 co-relation queries the response was YES. [2022-12-06 18:42:17,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568136 conditions, 62210 events. 27892/62210 cut-off events. For 1187775/1200514 co-relation queries the response was YES. Maximal size of possible extension queue 2111. Compared 721911 event pairs, 747 based on Foata normal form. 125/58047 useless extension candidates. Maximal degree in co-relation 535170. Up to 34184 conditions per place. [2022-12-06 18:42:17,658 INFO L137 encePairwiseOnDemand]: 181/191 looper letters, 3253 selfloop transitions, 724 changer transitions 56/6875 dead transitions. [2022-12-06 18:42:17,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 690 places, 6875 transitions, 201132 flow [2022-12-06 18:42:17,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 18:42:17,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 18:42:17,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1413 transitions. [2022-12-06 18:42:17,660 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8219895287958116 [2022-12-06 18:42:17,660 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 520 predicate places. [2022-12-06 18:42:17,660 INFO L495 AbstractCegarLoop]: Abstraction has has 690 places, 6875 transitions, 201132 flow [2022-12-06 18:42:17,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 150.57142857142858) internal successors, (1054), 7 states have internal predecessors, (1054), 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) [2022-12-06 18:42:17,661 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:42:17,661 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:42:17,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-06 18:42:17,661 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:42:17,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:42:17,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1614562684, now seen corresponding path program 12 times [2022-12-06 18:42:17,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:42:17,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364644340] [2022-12-06 18:42:17,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:42:17,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:42:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:42:17,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:42:17,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:42:17,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364644340] [2022-12-06 18:42:17,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364644340] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:42:17,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:42:17,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 18:42:17,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106715863] [2022-12-06 18:42:17,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:42:17,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 18:42:17,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:42:17,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 18:42:17,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-06 18:42:17,900 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 191 [2022-12-06 18:42:17,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 690 places, 6875 transitions, 201132 flow. Second operand has 8 states, 8 states have (on average 150.25) internal successors, (1202), 8 states have internal predecessors, (1202), 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) [2022-12-06 18:42:17,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:42:17,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 191 [2022-12-06 18:42:17,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:42:55,289 INFO L130 PetriNetUnfolder]: 27305/61118 cut-off events. [2022-12-06 18:42:55,289 INFO L131 PetriNetUnfolder]: For 1311652/1325406 co-relation queries the response was YES. [2022-12-06 18:42:55,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 572490 conditions, 61118 events. 27305/61118 cut-off events. For 1311652/1325406 co-relation queries the response was YES. Maximal size of possible extension queue 2069. Compared 708209 event pairs, 673 based on Foata normal form. 615/57913 useless extension candidates. Maximal degree in co-relation 539628. Up to 33386 conditions per place. [2022-12-06 18:42:55,823 INFO L137 encePairwiseOnDemand]: 181/191 looper letters, 3055 selfloop transitions, 1079 changer transitions 33/6989 dead transitions. [2022-12-06 18:42:55,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 687 places, 6989 transitions, 215013 flow [2022-12-06 18:42:55,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 18:42:55,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 18:42:55,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1721 transitions. [2022-12-06 18:42:55,826 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8191337458353165 [2022-12-06 18:42:55,826 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 517 predicate places. [2022-12-06 18:42:55,826 INFO L495 AbstractCegarLoop]: Abstraction has has 687 places, 6989 transitions, 215013 flow [2022-12-06 18:42:55,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 150.25) internal successors, (1202), 8 states have internal predecessors, (1202), 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) [2022-12-06 18:42:55,826 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:42:55,826 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:42:55,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-06 18:42:55,827 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:42:55,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:42:55,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2028683805, now seen corresponding path program 1 times [2022-12-06 18:42:55,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:42:55,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167649589] [2022-12-06 18:42:55,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:42:55,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:42:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:42:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:42:56,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:42:56,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167649589] [2022-12-06 18:42:56,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167649589] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:42:56,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775171583] [2022-12-06 18:42:56,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:42:56,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:42:56,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:42:56,097 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 18:42:56,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-06 18:42:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:42:56,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 40 conjunts are in the unsatisfiable core [2022-12-06 18:42:56,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:42:57,043 INFO L321 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-12-06 18:42:57,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 13 [2022-12-06 18:42:57,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:42:57,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:42:57,530 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 18:42:57,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 22 [2022-12-06 18:42:58,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:42:58,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775171583] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:42:58,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:42:58,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 21, 22] total 46 [2022-12-06 18:42:58,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315673062] [2022-12-06 18:42:58,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:42:58,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-12-06 18:42:58,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:42:58,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-12-06 18:42:58,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1901, Unknown=0, NotChecked=0, Total=2070 [2022-12-06 18:42:58,409 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 191 [2022-12-06 18:42:58,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 687 places, 6989 transitions, 215013 flow. Second operand has 46 states, 46 states have (on average 67.8695652173913) internal successors, (3122), 46 states have internal predecessors, (3122), 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) [2022-12-06 18:42:58,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:42:58,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 191 [2022-12-06 18:42:58,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:44:36,608 INFO L130 PetriNetUnfolder]: 45718/94443 cut-off events. [2022-12-06 18:44:36,608 INFO L131 PetriNetUnfolder]: For 2605352/2618600 co-relation queries the response was YES. [2022-12-06 18:44:36,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 909068 conditions, 94443 events. 45718/94443 cut-off events. For 2605352/2618600 co-relation queries the response was YES. Maximal size of possible extension queue 2889. Compared 1092056 event pairs, 3108 based on Foata normal form. 163/87465 useless extension candidates. Maximal degree in co-relation 806343. Up to 49108 conditions per place. [2022-12-06 18:44:37,478 INFO L137 encePairwiseOnDemand]: 126/191 looper letters, 6852 selfloop transitions, 658 changer transitions 1111/9229 dead transitions. [2022-12-06 18:44:37,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 800 places, 9229 transitions, 286630 flow [2022-12-06 18:44:37,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-12-06 18:44:37,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2022-12-06 18:44:37,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 8557 transitions. [2022-12-06 18:44:37,516 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.37966989085100716 [2022-12-06 18:44:37,516 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 630 predicate places. [2022-12-06 18:44:37,517 INFO L495 AbstractCegarLoop]: Abstraction has has 800 places, 9229 transitions, 286630 flow [2022-12-06 18:44:37,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 67.8695652173913) internal successors, (3122), 46 states have internal predecessors, (3122), 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) [2022-12-06 18:44:37,518 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:44:37,518 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:44:37,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-06 18:44:37,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:44:37,723 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:44:37,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:44:37,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1395105181, now seen corresponding path program 1 times [2022-12-06 18:44:37,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:44:37,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092423170] [2022-12-06 18:44:37,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:44:37,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:44:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:44:37,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:44:37,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:44:37,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092423170] [2022-12-06 18:44:37,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092423170] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:44:37,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621256312] [2022-12-06 18:44:37,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:44:37,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:44:37,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:44:38,004 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 18:44:38,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-06 18:44:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:44:38,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-06 18:44:38,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:44:38,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:44:38,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:44:38,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:44:38,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621256312] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:44:38,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:44:38,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 20 [2022-12-06 18:44:38,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383438667] [2022-12-06 18:44:38,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:44:38,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-06 18:44:38,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:44:38,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-06 18:44:38,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2022-12-06 18:44:38,332 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 191 [2022-12-06 18:44:38,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 800 places, 9229 transitions, 286630 flow. Second operand has 20 states, 20 states have (on average 149.35) internal successors, (2987), 20 states have internal predecessors, (2987), 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) [2022-12-06 18:44:38,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:44:38,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 191 [2022-12-06 18:44:38,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:46:33,240 INFO L130 PetriNetUnfolder]: 61239/128279 cut-off events. [2022-12-06 18:46:33,240 INFO L131 PetriNetUnfolder]: For 3809488/3825892 co-relation queries the response was YES. [2022-12-06 18:46:33,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1248781 conditions, 128279 events. 61239/128279 cut-off events. For 3809488/3825892 co-relation queries the response was YES. Maximal size of possible extension queue 3777. Compared 1549151 event pairs, 4507 based on Foata normal form. 359/118901 useless extension candidates. Maximal degree in co-relation 1104997. Up to 67133 conditions per place. [2022-12-06 18:46:34,386 INFO L137 encePairwiseOnDemand]: 168/191 looper letters, 3738 selfloop transitions, 2227 changer transitions 1399/10934 dead transitions. [2022-12-06 18:46:34,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 841 places, 10934 transitions, 373745 flow [2022-12-06 18:46:34,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-06 18:46:34,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-12-06 18:46:34,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 6484 transitions. [2022-12-06 18:46:34,390 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8082772375966093 [2022-12-06 18:46:34,390 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 671 predicate places. [2022-12-06 18:46:34,390 INFO L495 AbstractCegarLoop]: Abstraction has has 841 places, 10934 transitions, 373745 flow [2022-12-06 18:46:34,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 149.35) internal successors, (2987), 20 states have internal predecessors, (2987), 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) [2022-12-06 18:46:34,391 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:46:34,391 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:46:34,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-06 18:46:34,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-12-06 18:46:34,597 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:46:34,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:46:34,597 INFO L85 PathProgramCache]: Analyzing trace with hash -359730199, now seen corresponding path program 2 times [2022-12-06 18:46:34,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:46:34,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553078340] [2022-12-06 18:46:34,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:46:34,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:46:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:46:34,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:46:34,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:46:34,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553078340] [2022-12-06 18:46:34,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553078340] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:46:34,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275935733] [2022-12-06 18:46:34,859 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 18:46:34,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:46:34,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:46:34,875 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 18:46:34,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-06 18:46:35,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 18:46:35,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 18:46:35,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-06 18:46:35,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:46:35,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:46:35,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:46:35,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:46:35,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275935733] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:46:35,375 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:46:35,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 19 [2022-12-06 18:46:35,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108931719] [2022-12-06 18:46:35,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:46:35,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-06 18:46:35,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:46:35,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-06 18:46:35,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-12-06 18:46:35,377 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 191 [2022-12-06 18:46:35,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 841 places, 10934 transitions, 373745 flow. Second operand has 19 states, 19 states have (on average 149.52631578947367) internal successors, (2841), 19 states have internal predecessors, (2841), 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) [2022-12-06 18:46:35,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:46:35,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 191 [2022-12-06 18:46:35,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:50:18,664 INFO L130 PetriNetUnfolder]: 85504/176304 cut-off events. [2022-12-06 18:50:18,665 INFO L131 PetriNetUnfolder]: For 5619799/5646301 co-relation queries the response was YES. [2022-12-06 18:50:19,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1759179 conditions, 176304 events. 85504/176304 cut-off events. For 5619799/5646301 co-relation queries the response was YES. Maximal size of possible extension queue 6088. Compared 2204062 event pairs, 8045 based on Foata normal form. 521/164247 useless extension candidates. Maximal degree in co-relation 1614992. Up to 100173 conditions per place. [2022-12-06 18:50:20,163 INFO L137 encePairwiseOnDemand]: 174/191 looper letters, 5216 selfloop transitions, 3567 changer transitions 1421/13800 dead transitions. [2022-12-06 18:50:20,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 899 places, 13800 transitions, 519632 flow [2022-12-06 18:50:20,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-12-06 18:50:20,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2022-12-06 18:50:20,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 8984 transitions. [2022-12-06 18:50:20,167 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7972313426213506 [2022-12-06 18:50:20,167 INFO L294 CegarLoopForPetriNet]: 170 programPoint places, 729 predicate places. [2022-12-06 18:50:20,167 INFO L495 AbstractCegarLoop]: Abstraction has has 899 places, 13800 transitions, 519632 flow [2022-12-06 18:50:20,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 149.52631578947367) internal successors, (2841), 19 states have internal predecessors, (2841), 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) [2022-12-06 18:50:20,168 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:50:20,168 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:50:20,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-06 18:50:20,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-06 18:50:20,373 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 18:50:20,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:50:20,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1343078581, now seen corresponding path program 3 times [2022-12-06 18:50:20,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:50:20,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947734485] [2022-12-06 18:50:20,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:50:20,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:50:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:50:20,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:50:20,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:50:20,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947734485] [2022-12-06 18:50:20,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947734485] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:50:20,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736620833] [2022-12-06 18:50:20,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 18:50:20,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:50:20,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:50:20,545 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 18:50:20,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-06 18:50:20,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-06 18:50:20,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 18:50:20,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-06 18:50:20,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:50:21,114 INFO L321 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-12-06 18:50:21,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-12-06 18:50:21,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:50:21,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:50:21,432 INFO L321 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2022-12-06 18:50:21,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2022-12-06 18:50:21,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:50:21,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736620833] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:50:21,931 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:50:21,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 18, 18] total 35 [2022-12-06 18:50:21,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308325725] [2022-12-06 18:50:21,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:50:21,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-12-06 18:50:21,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:50:21,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-12-06 18:50:21,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1077, Unknown=0, NotChecked=0, Total=1190 [2022-12-06 18:50:21,935 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 191 [2022-12-06 18:50:21,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 899 places, 13800 transitions, 519632 flow. Second operand has 35 states, 35 states have (on average 70.77142857142857) internal successors, (2477), 35 states have internal predecessors, (2477), 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) [2022-12-06 18:50:21,936 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:50:21,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 191 [2022-12-06 18:50:21,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-06 18:52:09,591 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 [2022-12-06 18:52:09,591 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 18:52:09,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-12-06 18:52:09,698 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 18:52:09,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-06 18:52:09,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-06 18:52:09,902 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (35states, 65/191 universal loopers) in iteration 26,while PetriNetUnfolder was constructing finite prefix that currently has 524673 conditions, 47620 events (23454/47619 cut-off events. For 1490769/1500599 co-relation queries the response was YES. Maximal size of possible extension queue 6555. Compared 594425 event pairs, 643 based on Foata normal form. 360/51039 useless extension candidates. Maximal degree in co-relation 407885. Up to 18154 conditions per place.). [2022-12-06 18:52:09,903 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 18:52:09,904 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-06 18:52:09,904 INFO L458 BasicCegarLoop]: Path program histogram: [12, 7, 3, 2, 1, 1] [2022-12-06 18:52:09,906 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 18:52:09,906 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 18:52:09,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:52:09 BasicIcfg [2022-12-06 18:52:09,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 18:52:09,908 INFO L158 Benchmark]: Toolchain (without parser) took 814095.00ms. Allocated memory was 212.9MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 172.4MB in the beginning and 1.1GB in the end (delta: -885.4MB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. [2022-12-06 18:52:09,908 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 212.9MB. Free memory is still 189.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 18:52:09,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.34ms. Allocated memory is still 212.9MB. Free memory was 171.8MB in the beginning and 160.3MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-06 18:52:09,909 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.32ms. Allocated memory is still 212.9MB. Free memory was 160.3MB in the beginning and 158.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 18:52:09,909 INFO L158 Benchmark]: Boogie Preprocessor took 25.74ms. Allocated memory is still 212.9MB. Free memory was 158.2MB in the beginning and 156.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 18:52:09,909 INFO L158 Benchmark]: RCFGBuilder took 500.01ms. Allocated memory is still 212.9MB. Free memory was 156.6MB in the beginning and 138.3MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 18:52:09,909 INFO L158 Benchmark]: TraceAbstraction took 813321.27ms. Allocated memory was 212.9MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 137.8MB in the beginning and 1.1GB in the end (delta: -920.0MB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. [2022-12-06 18:52:09,910 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 212.9MB. Free memory is still 189.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 213.34ms. Allocated memory is still 212.9MB. Free memory was 171.8MB in the beginning and 160.3MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.32ms. Allocated memory is still 212.9MB. Free memory was 160.3MB in the beginning and 158.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.74ms. Allocated memory is still 212.9MB. Free memory was 158.2MB in the beginning and 156.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 500.01ms. Allocated memory is still 212.9MB. Free memory was 156.6MB in the beginning and 138.3MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 813321.27ms. Allocated memory was 212.9MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 137.8MB in the beginning and 1.1GB in the end (delta: -920.0MB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 99]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (35states, 65/191 universal loopers) in iteration 26,while PetriNetUnfolder was constructing finite prefix that currently has 524673 conditions, 47620 events (23454/47619 cut-off events. For 1490769/1500599 co-relation queries the response was YES. Maximal size of possible extension queue 6555. Compared 594425 event pairs, 643 based on Foata normal form. 360/51039 useless extension candidates. Maximal degree in co-relation 407885. Up to 18154 conditions per place.). - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (35states, 65/191 universal loopers) in iteration 26,while PetriNetUnfolder was constructing finite prefix that currently has 524673 conditions, 47620 events (23454/47619 cut-off events. For 1490769/1500599 co-relation queries the response was YES. Maximal size of possible extension queue 6555. Compared 594425 event pairs, 643 based on Foata normal form. 360/51039 useless extension candidates. Maximal degree in co-relation 407885. Up to 18154 conditions per place.). - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (35states, 65/191 universal loopers) in iteration 26,while PetriNetUnfolder was constructing finite prefix that currently has 524673 conditions, 47620 events (23454/47619 cut-off events. For 1490769/1500599 co-relation queries the response was YES. Maximal size of possible extension queue 6555. Compared 594425 event pairs, 643 based on Foata normal form. 360/51039 useless extension candidates. Maximal degree in co-relation 407885. Up to 18154 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 260 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 813.2s, OverallIterations: 26, TraceHistogramMax: 1, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 795.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11037 SdHoareTripleChecker+Valid, 15.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11037 mSDsluCounter, 22477 SdHoareTripleChecker+Invalid, 12.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 2270 IncrementalHoareTripleChecker+Unchecked, 20362 mSDsCounter, 399 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30462 IncrementalHoareTripleChecker+Invalid, 33131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 399 mSolverCounterUnsat, 2115 mSDtfsCounter, 30462 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3407 GetRequests, 2344 SyntacticMatches, 28 SemanticMatches, 1035 ConstructedPredicates, 8 IntricatePredicates, 3 DeprecatedPredicates, 35120 ImplicationChecksByTransitivity, 41.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=519632occurred in iteration=25, InterpolantAutomatonStates: 772, 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: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 13.6s InterpolantComputationTime, 3893 NumberOfCodeBlocks, 3872 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 4884 ConstructedInterpolants, 71 QuantifiedInterpolants, 32983 SizeOfPredicates, 167 NumberOfNonLiveVariables, 2461 ConjunctsInSsa, 268 ConjunctsInUnsatCore, 45 InterpolantComputations, 17 PerfectInterpolantSequences, 35/69 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