/usr/bin/java -Xmx16000000000 -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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/floating_read-25.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 03:12:50,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 03:12:50,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 03:12:50,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 03:12:50,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 03:12:50,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 03:12:50,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 03:12:50,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 03:12:50,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 03:12:50,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 03:12:50,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 03:12:50,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 03:12:50,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 03:12:50,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 03:12:50,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 03:12:50,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 03:12:50,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 03:12:50,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 03:12:50,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 03:12:50,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 03:12:50,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 03:12:50,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 03:12:50,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 03:12:50,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 03:12:50,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 03:12:50,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 03:12:50,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 03:12:50,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 03:12:50,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 03:12:50,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 03:12:50,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 03:12:50,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 03:12:50,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 03:12:50,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 03:12:50,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 03:12:50,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 03:12:50,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 03:12:50,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 03:12:50,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 03:12:50,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 03:12:50,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 03:12:50,685 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 [2022-01-19 03:12:50,708 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 03:12:50,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 03:12:50,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 03:12:50,709 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 03:12:50,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 03:12:50,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 03:12:50,710 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 03:12:50,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 03:12:50,710 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 03:12:50,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 03:12:50,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 03:12:50,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 03:12:50,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 03:12:50,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 03:12:50,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 03:12:50,711 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 03:12:50,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 03:12:50,711 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 03:12:50,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 03:12:50,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 03:12:50,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 03:12:50,711 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 03:12:50,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 03:12:50,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 03:12:50,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 03:12:50,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 03:12:50,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 03:12:50,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 03:12:50,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 03:12:50,712 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 03:12:50,712 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 03:12:50,712 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 03:12:50,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 03:12:50,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 03:12:50,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 03:12:50,929 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 03:12:50,931 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 03:12:50,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/floating_read-25.i [2022-01-19 03:12:51,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d69c7e90/797fd46b472247958a5221d3e98ea8d4/FLAG4b5d7eb1d [2022-01-19 03:12:51,496 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 03:12:51,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/floating_read-25.i [2022-01-19 03:12:51,514 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d69c7e90/797fd46b472247958a5221d3e98ea8d4/FLAG4b5d7eb1d [2022-01-19 03:12:51,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d69c7e90/797fd46b472247958a5221d3e98ea8d4 [2022-01-19 03:12:51,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 03:12:51,955 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 03:12:51,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 03:12:51,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 03:12:51,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 03:12:51,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 03:12:51" (1/1) ... [2022-01-19 03:12:51,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef1122f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:12:51, skipping insertion in model container [2022-01-19 03:12:51,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 03:12:51" (1/1) ... [2022-01-19 03:12:51,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 03:12:51,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 03:12:52,244 WARN L1533 CHandler]: Possible shadowing of function thread [2022-01-19 03:12:52,251 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/floating_read-25.i[31197,31210] [2022-01-19 03:12:52,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 03:12:52,266 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 03:12:52,294 WARN L1533 CHandler]: Possible shadowing of function thread [2022-01-19 03:12:52,296 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/floating_read-25.i[31197,31210] [2022-01-19 03:12:52,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 03:12:52,324 INFO L208 MainTranslator]: Completed translation [2022-01-19 03:12:52,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:12:52 WrapperNode [2022-01-19 03:12:52,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 03:12:52,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 03:12:52,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 03:12:52,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 03:12:52,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:12:52" (1/1) ... [2022-01-19 03:12:52,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:12:52" (1/1) ... [2022-01-19 03:12:52,358 INFO L137 Inliner]: procedures = 162, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2022-01-19 03:12:52,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 03:12:52,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 03:12:52,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 03:12:52,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 03:12:52,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:12:52" (1/1) ... [2022-01-19 03:12:52,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:12:52" (1/1) ... [2022-01-19 03:12:52,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:12:52" (1/1) ... [2022-01-19 03:12:52,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:12:52" (1/1) ... [2022-01-19 03:12:52,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:12:52" (1/1) ... [2022-01-19 03:12:52,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:12:52" (1/1) ... [2022-01-19 03:12:52,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:12:52" (1/1) ... [2022-01-19 03:12:52,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 03:12:52,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 03:12:52,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 03:12:52,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 03:12:52,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:12:52" (1/1) ... [2022-01-19 03:12:52,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 03:12:52,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:12:52,417 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) [2022-01-19 03:12:52,423 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 [2022-01-19 03:12:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 03:12:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 03:12:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 03:12:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 03:12:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 03:12:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 03:12:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 03:12:52,448 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-01-19 03:12:52,448 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-01-19 03:12:52,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 03:12:52,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 03:12:52,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 03:12:52,450 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 03:12:52,536 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 03:12:52,537 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 03:12:52,680 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 03:12:52,685 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 03:12:52,686 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-19 03:12:52,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 03:12:52 BoogieIcfgContainer [2022-01-19 03:12:52,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 03:12:52,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 03:12:52,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 03:12:52,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 03:12:52,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 03:12:51" (1/3) ... [2022-01-19 03:12:52,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551de2ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 03:12:52, skipping insertion in model container [2022-01-19 03:12:52,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 03:12:52" (2/3) ... [2022-01-19 03:12:52,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551de2ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 03:12:52, skipping insertion in model container [2022-01-19 03:12:52,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 03:12:52" (3/3) ... [2022-01-19 03:12:52,700 INFO L111 eAbstractionObserver]: Analyzing ICFG floating_read-25.i [2022-01-19 03:12:52,704 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 03:12:52,704 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 03:12:52,704 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 03:12:52,730 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,730 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,730 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,731 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,731 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,731 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,731 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,731 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,732 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,732 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,732 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,732 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,733 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,733 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,733 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,733 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,733 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,734 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,734 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,734 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,737 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,737 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,737 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,737 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,737 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:52,740 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-19 03:12:52,777 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 03:12:52,783 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 03:12:52,783 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 03:12:52,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 59 transitions, 126 flow [2022-01-19 03:12:52,820 INFO L129 PetriNetUnfolder]: 7/81 cut-off events. [2022-01-19 03:12:52,821 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 03:12:52,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 81 events. 7/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 104 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 42. Up to 4 conditions per place. [2022-01-19 03:12:52,823 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 59 transitions, 126 flow [2022-01-19 03:12:52,827 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 40 transitions, 85 flow [2022-01-19 03:12:52,833 INFO L129 PetriNetUnfolder]: 1/25 cut-off events. [2022-01-19 03:12:52,833 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 03:12:52,833 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:52,834 INFO L254 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] [2022-01-19 03:12:52,835 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:52,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:52,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1781753840, now seen corresponding path program 1 times [2022-01-19 03:12:52,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:52,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949422892] [2022-01-19 03:12:52,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:52,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:52,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:52,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:12:52,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949422892] [2022-01-19 03:12:52,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949422892] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:12:52,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:12:52,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 03:12:52,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287710471] [2022-01-19 03:12:52,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:12:52,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 03:12:52,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:12:53,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 03:12:53,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 03:12:53,032 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 59 [2022-01-19 03:12:53,039 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 40 transitions, 85 flow. Second operand has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 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) [2022-01-19 03:12:53,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:12:53,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 59 [2022-01-19 03:12:53,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:12:53,079 INFO L129 PetriNetUnfolder]: 0/46 cut-off events. [2022-01-19 03:12:53,079 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 03:12:53,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 46 events. 0/46 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 2/46 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-01-19 03:12:53,080 INFO L132 encePairwiseOnDemand]: 58/59 looper letters, 1 selfloop transitions, 0 changer transitions 0/39 dead transitions. [2022-01-19 03:12:53,080 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 39 transitions, 85 flow [2022-01-19 03:12:53,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 03:12:53,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 03:12:53,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 108 transitions. [2022-01-19 03:12:53,094 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9152542372881356 [2022-01-19 03:12:53,094 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 108 transitions. [2022-01-19 03:12:53,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 108 transitions. [2022-01-19 03:12:53,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:12:53,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 108 transitions. [2022-01-19 03:12:53,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 54.0) internal successors, (108), 2 states have internal predecessors, (108), 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) [2022-01-19 03:12:53,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2022-01-19 03:12:53,113 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2022-01-19 03:12:53,115 INFO L186 Difference]: Start difference. First operand has 42 places, 40 transitions, 85 flow. Second operand 2 states and 108 transitions. [2022-01-19 03:12:53,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 39 transitions, 85 flow [2022-01-19 03:12:53,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 39 transitions, 85 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 03:12:53,120 INFO L242 Difference]: Finished difference. Result has 43 places, 39 transitions, 83 flow [2022-01-19 03:12:53,122 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=83, PETRI_PLACES=43, PETRI_TRANSITIONS=39} [2022-01-19 03:12:53,129 INFO L334 CegarLoopForPetriNet]: 42 programPoint places, 1 predicate places. [2022-01-19 03:12:53,129 INFO L470 AbstractCegarLoop]: Abstraction has has 43 places, 39 transitions, 83 flow [2022-01-19 03:12:53,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 53.5) internal successors, (107), 2 states have internal predecessors, (107), 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) [2022-01-19 03:12:53,130 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:53,130 INFO L254 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] [2022-01-19 03:12:53,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 03:12:53,131 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:53,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:53,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1781754801, now seen corresponding path program 1 times [2022-01-19 03:12:53,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:53,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151200043] [2022-01-19 03:12:53,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:53,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:53,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:53,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:12:53,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151200043] [2022-01-19 03:12:53,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151200043] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:12:53,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:12:53,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:12:53,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998597179] [2022-01-19 03:12:53,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:12:53,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:12:53,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:12:53,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:12:53,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:12:53,255 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 59 [2022-01-19 03:12:53,255 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 39 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2022-01-19 03:12:53,255 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:12:53,255 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 59 [2022-01-19 03:12:53,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:12:53,286 INFO L129 PetriNetUnfolder]: 0/43 cut-off events. [2022-01-19 03:12:53,286 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 03:12:53,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 43 events. 0/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 15 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2022-01-19 03:12:53,287 INFO L132 encePairwiseOnDemand]: 56/59 looper letters, 8 selfloop transitions, 2 changer transitions 0/41 dead transitions. [2022-01-19 03:12:53,287 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 41 transitions, 107 flow [2022-01-19 03:12:53,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:12:53,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:12:53,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2022-01-19 03:12:53,293 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8418079096045198 [2022-01-19 03:12:53,293 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 149 transitions. [2022-01-19 03:12:53,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 149 transitions. [2022-01-19 03:12:53,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:12:53,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 149 transitions. [2022-01-19 03:12:53,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2022-01-19 03:12:53,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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) [2022-01-19 03:12:53,298 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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) [2022-01-19 03:12:53,298 INFO L186 Difference]: Start difference. First operand has 43 places, 39 transitions, 83 flow. Second operand 3 states and 149 transitions. [2022-01-19 03:12:53,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 41 transitions, 107 flow [2022-01-19 03:12:53,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 107 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 03:12:53,302 INFO L242 Difference]: Finished difference. Result has 46 places, 39 transitions, 91 flow [2022-01-19 03:12:53,302 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2022-01-19 03:12:53,303 INFO L334 CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places. [2022-01-19 03:12:53,303 INFO L470 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 91 flow [2022-01-19 03:12:53,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2022-01-19 03:12:53,304 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:53,304 INFO L254 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] [2022-01-19 03:12:53,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 03:12:53,304 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:53,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:53,305 INFO L85 PathProgramCache]: Analyzing trace with hash -315270955, now seen corresponding path program 1 times [2022-01-19 03:12:53,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:53,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855784443] [2022-01-19 03:12:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:53,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:53,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 03:12:53,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:12:53,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855784443] [2022-01-19 03:12:53,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855784443] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:12:53,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:12:53,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:12:53,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069612342] [2022-01-19 03:12:53,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:12:53,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:12:53,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:12:53,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:12:53,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:12:53,372 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 59 [2022-01-19 03:12:53,372 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2022-01-19 03:12:53,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:12:53,373 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 59 [2022-01-19 03:12:53,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:12:53,387 INFO L129 PetriNetUnfolder]: 0/43 cut-off events. [2022-01-19 03:12:53,387 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 03:12:53,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 43 events. 0/43 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 15 event pairs, 0 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-01-19 03:12:53,388 INFO L132 encePairwiseOnDemand]: 56/59 looper letters, 3 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2022-01-19 03:12:53,388 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 39 transitions, 101 flow [2022-01-19 03:12:53,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:12:53,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:12:53,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 150 transitions. [2022-01-19 03:12:53,389 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.847457627118644 [2022-01-19 03:12:53,389 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 150 transitions. [2022-01-19 03:12:53,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 150 transitions. [2022-01-19 03:12:53,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:12:53,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 150 transitions. [2022-01-19 03:12:53,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2022-01-19 03:12:53,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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) [2022-01-19 03:12:53,393 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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) [2022-01-19 03:12:53,393 INFO L186 Difference]: Start difference. First operand has 46 places, 39 transitions, 91 flow. Second operand 3 states and 150 transitions. [2022-01-19 03:12:53,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 39 transitions, 101 flow [2022-01-19 03:12:53,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 97 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 03:12:53,395 INFO L242 Difference]: Finished difference. Result has 47 places, 39 transitions, 95 flow [2022-01-19 03:12:53,395 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2022-01-19 03:12:53,396 INFO L334 CegarLoopForPetriNet]: 42 programPoint places, 5 predicate places. [2022-01-19 03:12:53,396 INFO L470 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 95 flow [2022-01-19 03:12:53,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2022-01-19 03:12:53,396 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:53,397 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:12:53,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 03:12:53,397 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:53,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:53,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1968634815, now seen corresponding path program 1 times [2022-01-19 03:12:53,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:53,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777779666] [2022-01-19 03:12:53,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:53,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 03:12:53,429 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 03:12:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 03:12:53,483 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 03:12:53,483 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 03:12:53,484 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-19 03:12:53,485 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-19 03:12:53,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 03:12:53,489 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-19 03:12:53,491 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 03:12:53,491 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-01-19 03:12:53,517 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,517 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,517 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,518 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,518 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,518 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,518 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,518 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,519 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,519 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,519 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,522 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,522 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,522 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,522 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,523 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,523 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,523 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,523 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,523 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,523 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,524 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,524 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,524 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,524 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,524 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,524 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,524 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,524 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,524 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,525 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,525 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,525 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,525 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,525 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,525 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,526 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,526 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,526 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,526 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,527 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,527 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,527 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,527 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,527 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,529 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,530 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,530 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,530 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,530 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:53,534 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-19 03:12:53,539 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 03:12:53,542 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 03:12:53,542 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 03:12:53,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 66 transitions, 150 flow [2022-01-19 03:12:53,566 INFO L129 PetriNetUnfolder]: 13/135 cut-off events. [2022-01-19 03:12:53,566 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-01-19 03:12:53,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 135 events. 13/135 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 236 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 83. Up to 8 conditions per place. [2022-01-19 03:12:53,568 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 66 transitions, 150 flow [2022-01-19 03:12:53,569 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 46 transitions, 104 flow [2022-01-19 03:12:53,572 INFO L129 PetriNetUnfolder]: 1/26 cut-off events. [2022-01-19 03:12:53,572 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 03:12:53,572 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:53,572 INFO L254 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] [2022-01-19 03:12:53,573 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:53,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:53,573 INFO L85 PathProgramCache]: Analyzing trace with hash 775346483, now seen corresponding path program 1 times [2022-01-19 03:12:53,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:53,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270560675] [2022-01-19 03:12:53,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:53,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:53,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:53,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:53,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:12:53,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270560675] [2022-01-19 03:12:53,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270560675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:12:53,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:12:53,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:12:53,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330271528] [2022-01-19 03:12:53,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:12:53,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:12:53,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:12:53,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:12:53,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:12:53,604 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 66 [2022-01-19 03:12:53,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2022-01-19 03:12:53,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:12:53,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 66 [2022-01-19 03:12:53,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:12:53,639 INFO L129 PetriNetUnfolder]: 0/61 cut-off events. [2022-01-19 03:12:53,639 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 03:12:53,639 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 61 events. 0/61 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2022-01-19 03:12:53,640 INFO L132 encePairwiseOnDemand]: 62/66 looper letters, 11 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2022-01-19 03:12:53,640 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 49 transitions, 136 flow [2022-01-19 03:12:53,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:12:53,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:12:53,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2022-01-19 03:12:53,641 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8535353535353535 [2022-01-19 03:12:53,641 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 169 transitions. [2022-01-19 03:12:53,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 169 transitions. [2022-01-19 03:12:53,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:12:53,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 169 transitions. [2022-01-19 03:12:53,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2022-01-19 03:12:53,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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) [2022-01-19 03:12:53,643 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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) [2022-01-19 03:12:53,644 INFO L186 Difference]: Start difference. First operand has 50 places, 46 transitions, 104 flow. Second operand 3 states and 169 transitions. [2022-01-19 03:12:53,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 49 transitions, 136 flow [2022-01-19 03:12:53,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 49 transitions, 134 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-01-19 03:12:53,646 INFO L242 Difference]: Finished difference. Result has 53 places, 46 transitions, 112 flow [2022-01-19 03:12:53,647 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=53, PETRI_TRANSITIONS=46} [2022-01-19 03:12:53,648 INFO L334 CegarLoopForPetriNet]: 50 programPoint places, 3 predicate places. [2022-01-19 03:12:53,648 INFO L470 AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 112 flow [2022-01-19 03:12:53,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2022-01-19 03:12:53,649 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:53,649 INFO L254 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] [2022-01-19 03:12:53,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 03:12:53,649 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:53,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:53,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1083506660, now seen corresponding path program 1 times [2022-01-19 03:12:53,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:53,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43126879] [2022-01-19 03:12:53,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:53,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:53,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 03:12:53,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:12:53,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43126879] [2022-01-19 03:12:53,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43126879] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:12:53,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:12:53,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:12:53,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607075606] [2022-01-19 03:12:53,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:12:53,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:12:53,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:12:53,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:12:53,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:12:53,688 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 66 [2022-01-19 03:12:53,688 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 46 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2022-01-19 03:12:53,688 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:12:53,688 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 66 [2022-01-19 03:12:53,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:12:53,712 INFO L129 PetriNetUnfolder]: 4/87 cut-off events. [2022-01-19 03:12:53,712 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-01-19 03:12:53,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 87 events. 4/87 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 146 event pairs, 1 based on Foata normal form. 2/88 useless extension candidates. Maximal degree in co-relation 84. Up to 13 conditions per place. [2022-01-19 03:12:53,713 INFO L132 encePairwiseOnDemand]: 62/66 looper letters, 7 selfloop transitions, 3 changer transitions 0/49 dead transitions. [2022-01-19 03:12:53,713 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 49 transitions, 143 flow [2022-01-19 03:12:53,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:12:53,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:12:53,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 167 transitions. [2022-01-19 03:12:53,715 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8434343434343434 [2022-01-19 03:12:53,715 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 167 transitions. [2022-01-19 03:12:53,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 167 transitions. [2022-01-19 03:12:53,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:12:53,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 167 transitions. [2022-01-19 03:12:53,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2022-01-19 03:12:53,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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) [2022-01-19 03:12:53,717 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 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) [2022-01-19 03:12:53,717 INFO L186 Difference]: Start difference. First operand has 53 places, 46 transitions, 112 flow. Second operand 3 states and 167 transitions. [2022-01-19 03:12:53,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 49 transitions, 143 flow [2022-01-19 03:12:53,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 49 transitions, 141 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 03:12:53,718 INFO L242 Difference]: Finished difference. Result has 55 places, 48 transitions, 129 flow [2022-01-19 03:12:53,719 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=55, PETRI_TRANSITIONS=48} [2022-01-19 03:12:53,719 INFO L334 CegarLoopForPetriNet]: 50 programPoint places, 5 predicate places. [2022-01-19 03:12:53,719 INFO L470 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 129 flow [2022-01-19 03:12:53,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2022-01-19 03:12:53,720 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:53,720 INFO L254 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] [2022-01-19 03:12:53,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 03:12:53,720 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:53,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:53,720 INFO L85 PathProgramCache]: Analyzing trace with hash -2017126046, now seen corresponding path program 1 times [2022-01-19 03:12:53,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:53,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391503086] [2022-01-19 03:12:53,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:53,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:53,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:53,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:12:53,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391503086] [2022-01-19 03:12:53,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391503086] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:12:53,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170217335] [2022-01-19 03:12:53,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:53,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:12:53,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:12:53,779 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) [2022-01-19 03:12:53,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-19 03:12:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:53,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-19 03:12:53,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:12:53,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:53,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:12:54,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:54,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170217335] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:12:54,131 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:12:54,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-19 03:12:54,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048314158] [2022-01-19 03:12:54,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:12:54,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 03:12:54,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:12:54,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 03:12:54,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-19 03:12:54,133 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 66 [2022-01-19 03:12:54,136 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 129 flow. Second operand has 10 states, 10 states have (on average 52.3) internal successors, (523), 10 states have internal predecessors, (523), 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) [2022-01-19 03:12:54,136 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:12:54,136 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 66 [2022-01-19 03:12:54,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:12:54,216 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2022-01-19 03:12:54,216 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 03:12:54,217 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 59 events. 1/59 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 2/61 useless extension candidates. Maximal degree in co-relation 37. Up to 5 conditions per place. [2022-01-19 03:12:54,218 INFO L132 encePairwiseOnDemand]: 61/66 looper letters, 9 selfloop transitions, 7 changer transitions 0/51 dead transitions. [2022-01-19 03:12:54,218 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 51 transitions, 163 flow [2022-01-19 03:12:54,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 03:12:54,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 03:12:54,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 468 transitions. [2022-01-19 03:12:54,219 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7878787878787878 [2022-01-19 03:12:54,220 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 468 transitions. [2022-01-19 03:12:54,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 468 transitions. [2022-01-19 03:12:54,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:12:54,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 468 transitions. [2022-01-19 03:12:54,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 52.0) internal successors, (468), 9 states have internal predecessors, (468), 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) [2022-01-19 03:12:54,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 66.0) internal successors, (660), 10 states have internal predecessors, (660), 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) [2022-01-19 03:12:54,224 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 66.0) internal successors, (660), 10 states have internal predecessors, (660), 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) [2022-01-19 03:12:54,224 INFO L186 Difference]: Start difference. First operand has 55 places, 48 transitions, 129 flow. Second operand 9 states and 468 transitions. [2022-01-19 03:12:54,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 51 transitions, 163 flow [2022-01-19 03:12:54,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 51 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 03:12:54,229 INFO L242 Difference]: Finished difference. Result has 59 places, 47 transitions, 134 flow [2022-01-19 03:12:54,229 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=134, PETRI_PLACES=59, PETRI_TRANSITIONS=47} [2022-01-19 03:12:54,231 INFO L334 CegarLoopForPetriNet]: 50 programPoint places, 9 predicate places. [2022-01-19 03:12:54,231 INFO L470 AbstractCegarLoop]: Abstraction has has 59 places, 47 transitions, 134 flow [2022-01-19 03:12:54,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 52.3) internal successors, (523), 10 states have internal predecessors, (523), 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) [2022-01-19 03:12:54,232 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:54,232 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:12:54,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-19 03:12:54,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:12:54,447 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:54,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:54,447 INFO L85 PathProgramCache]: Analyzing trace with hash 286308789, now seen corresponding path program 1 times [2022-01-19 03:12:54,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:54,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176764790] [2022-01-19 03:12:54,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:54,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 03:12:54,468 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 03:12:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 03:12:54,483 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 03:12:54,483 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 03:12:54,483 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-19 03:12:54,484 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-19 03:12:54,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 03:12:54,484 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-19 03:12:54,485 WARN L235 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 03:12:54,485 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-01-19 03:12:54,492 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,492 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,493 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,493 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,493 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,493 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,493 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,493 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,493 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,493 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,493 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,493 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,494 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,494 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,494 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,494 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,494 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,494 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,494 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,494 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,494 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,494 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,495 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,495 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,495 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,495 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,495 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,495 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,495 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,495 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,495 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,495 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,496 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,496 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,496 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,496 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,496 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,496 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,496 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,496 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,496 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,496 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,497 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,497 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,497 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,497 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,497 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,497 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,497 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,497 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,497 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,497 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,497 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,497 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,498 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,498 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,498 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,498 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,498 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,498 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,498 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,498 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,499 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,499 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,499 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,499 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,499 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,499 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,499 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,500 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,500 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,500 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,500 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,500 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,500 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:54,502 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-19 03:12:54,503 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 03:12:54,504 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 03:12:54,504 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 03:12:54,505 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 73 transitions, 176 flow [2022-01-19 03:12:54,530 INFO L129 PetriNetUnfolder]: 24/222 cut-off events. [2022-01-19 03:12:54,530 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-01-19 03:12:54,535 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 222 events. 24/222 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 498 event pairs, 1 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 143. Up to 16 conditions per place. [2022-01-19 03:12:54,535 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 73 transitions, 176 flow [2022-01-19 03:12:54,536 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 52 transitions, 125 flow [2022-01-19 03:12:54,538 INFO L129 PetriNetUnfolder]: 1/25 cut-off events. [2022-01-19 03:12:54,538 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 03:12:54,538 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:54,539 INFO L254 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] [2022-01-19 03:12:54,539 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:54,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:54,539 INFO L85 PathProgramCache]: Analyzing trace with hash 898626907, now seen corresponding path program 1 times [2022-01-19 03:12:54,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:54,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070582721] [2022-01-19 03:12:54,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:54,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:54,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:54,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:12:54,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070582721] [2022-01-19 03:12:54,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070582721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:12:54,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:12:54,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 03:12:54,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469357820] [2022-01-19 03:12:54,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:12:54,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 03:12:54,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:12:54,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 03:12:54,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 03:12:54,569 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 73 [2022-01-19 03:12:54,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 52 transitions, 125 flow. Second operand has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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) [2022-01-19 03:12:54,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:12:54,569 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 73 [2022-01-19 03:12:54,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:12:54,584 INFO L129 PetriNetUnfolder]: 0/82 cut-off events. [2022-01-19 03:12:54,584 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-01-19 03:12:54,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 82 events. 0/82 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 4/82 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-01-19 03:12:54,585 INFO L132 encePairwiseOnDemand]: 72/73 looper letters, 3 selfloop transitions, 0 changer transitions 0/51 dead transitions. [2022-01-19 03:12:54,585 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 51 transitions, 129 flow [2022-01-19 03:12:54,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 03:12:54,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 03:12:54,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 130 transitions. [2022-01-19 03:12:54,586 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8904109589041096 [2022-01-19 03:12:54,586 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 130 transitions. [2022-01-19 03:12:54,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 130 transitions. [2022-01-19 03:12:54,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:12:54,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 130 transitions. [2022-01-19 03:12:54,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 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) [2022-01-19 03:12:54,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2022-01-19 03:12:54,588 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2022-01-19 03:12:54,588 INFO L186 Difference]: Start difference. First operand has 58 places, 52 transitions, 125 flow. Second operand 2 states and 130 transitions. [2022-01-19 03:12:54,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 51 transitions, 129 flow [2022-01-19 03:12:54,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 51 transitions, 123 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-01-19 03:12:54,590 INFO L242 Difference]: Finished difference. Result has 59 places, 51 transitions, 117 flow [2022-01-19 03:12:54,591 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=117, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2022-01-19 03:12:54,591 INFO L334 CegarLoopForPetriNet]: 58 programPoint places, 1 predicate places. [2022-01-19 03:12:54,592 INFO L470 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 117 flow [2022-01-19 03:12:54,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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) [2022-01-19 03:12:54,592 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:54,592 INFO L254 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] [2022-01-19 03:12:54,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 03:12:54,592 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:54,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:54,593 INFO L85 PathProgramCache]: Analyzing trace with hash 898627868, now seen corresponding path program 1 times [2022-01-19 03:12:54,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:54,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050018241] [2022-01-19 03:12:54,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:54,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:54,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:54,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:12:54,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050018241] [2022-01-19 03:12:54,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050018241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:12:54,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:12:54,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:12:54,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985020455] [2022-01-19 03:12:54,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:12:54,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:12:54,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:12:54,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:12:54,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:12:54,627 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 73 [2022-01-19 03:12:54,628 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2022-01-19 03:12:54,628 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:12:54,628 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 73 [2022-01-19 03:12:54,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:12:54,652 INFO L129 PetriNetUnfolder]: 0/79 cut-off events. [2022-01-19 03:12:54,653 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 03:12:54,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 79 events. 0/79 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2022-01-19 03:12:54,653 INFO L132 encePairwiseOnDemand]: 70/73 looper letters, 12 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2022-01-19 03:12:54,653 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 55 transitions, 153 flow [2022-01-19 03:12:54,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:12:54,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:12:54,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2022-01-19 03:12:54,654 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8356164383561644 [2022-01-19 03:12:54,654 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 183 transitions. [2022-01-19 03:12:54,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 183 transitions. [2022-01-19 03:12:54,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:12:54,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 183 transitions. [2022-01-19 03:12:54,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2022-01-19 03:12:54,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2022-01-19 03:12:54,656 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2022-01-19 03:12:54,656 INFO L186 Difference]: Start difference. First operand has 59 places, 51 transitions, 117 flow. Second operand 3 states and 183 transitions. [2022-01-19 03:12:54,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 55 transitions, 153 flow [2022-01-19 03:12:54,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 55 transitions, 153 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 03:12:54,658 INFO L242 Difference]: Finished difference. Result has 62 places, 52 transitions, 129 flow [2022-01-19 03:12:54,658 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=62, PETRI_TRANSITIONS=52} [2022-01-19 03:12:54,660 INFO L334 CegarLoopForPetriNet]: 58 programPoint places, 4 predicate places. [2022-01-19 03:12:54,660 INFO L470 AbstractCegarLoop]: Abstraction has has 62 places, 52 transitions, 129 flow [2022-01-19 03:12:54,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2022-01-19 03:12:54,661 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:54,661 INFO L254 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] [2022-01-19 03:12:54,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 03:12:54,661 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:54,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:54,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1823512938, now seen corresponding path program 1 times [2022-01-19 03:12:54,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:54,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825031160] [2022-01-19 03:12:54,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:54,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:54,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 03:12:54,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:12:54,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825031160] [2022-01-19 03:12:54,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825031160] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:12:54,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:12:54,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:12:54,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006931172] [2022-01-19 03:12:54,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:12:54,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:12:54,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:12:54,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:12:54,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:12:54,702 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 73 [2022-01-19 03:12:54,702 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2022-01-19 03:12:54,702 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:12:54,702 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 73 [2022-01-19 03:12:54,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:12:54,737 INFO L129 PetriNetUnfolder]: 21/177 cut-off events. [2022-01-19 03:12:54,737 INFO L130 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-01-19 03:12:54,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 177 events. 21/177 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 569 event pairs, 8 based on Foata normal form. 3/175 useless extension candidates. Maximal degree in co-relation 262. Up to 44 conditions per place. [2022-01-19 03:12:54,739 INFO L132 encePairwiseOnDemand]: 68/73 looper letters, 10 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2022-01-19 03:12:54,739 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 57 transitions, 177 flow [2022-01-19 03:12:54,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:12:54,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:12:54,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2022-01-19 03:12:54,740 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8356164383561644 [2022-01-19 03:12:54,740 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 183 transitions. [2022-01-19 03:12:54,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 183 transitions. [2022-01-19 03:12:54,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:12:54,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 183 transitions. [2022-01-19 03:12:54,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2022-01-19 03:12:54,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2022-01-19 03:12:54,742 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2022-01-19 03:12:54,742 INFO L186 Difference]: Start difference. First operand has 62 places, 52 transitions, 129 flow. Second operand 3 states and 183 transitions. [2022-01-19 03:12:54,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 57 transitions, 177 flow [2022-01-19 03:12:54,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 57 transitions, 175 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 03:12:54,747 INFO L242 Difference]: Finished difference. Result has 64 places, 55 transitions, 153 flow [2022-01-19 03:12:54,747 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2022-01-19 03:12:54,747 INFO L334 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2022-01-19 03:12:54,748 INFO L470 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 153 flow [2022-01-19 03:12:54,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2022-01-19 03:12:54,748 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:54,748 INFO L254 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] [2022-01-19 03:12:54,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 03:12:54,748 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:54,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:54,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1587743943, now seen corresponding path program 1 times [2022-01-19 03:12:54,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:54,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034741507] [2022-01-19 03:12:54,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:54,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:54,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:54,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:12:54,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034741507] [2022-01-19 03:12:54,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034741507] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:12:54,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165093920] [2022-01-19 03:12:54,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:54,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:12:54,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:12:54,805 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) [2022-01-19 03:12:54,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-19 03:12:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:54,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-19 03:12:54,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:12:54,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:54,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:12:55,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:55,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165093920] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:12:55,024 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:12:55,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-19 03:12:55,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285434522] [2022-01-19 03:12:55,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:12:55,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 03:12:55,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:12:55,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 03:12:55,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-19 03:12:55,027 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 73 [2022-01-19 03:12:55,028 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 153 flow. Second operand has 10 states, 10 states have (on average 57.3) internal successors, (573), 10 states have internal predecessors, (573), 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) [2022-01-19 03:12:55,028 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:12:55,028 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 73 [2022-01-19 03:12:55,028 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:12:55,099 INFO L129 PetriNetUnfolder]: 14/115 cut-off events. [2022-01-19 03:12:55,099 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-01-19 03:12:55,101 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 115 events. 14/115 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 231 event pairs, 6 based on Foata normal form. 2/112 useless extension candidates. Maximal degree in co-relation 184. Up to 29 conditions per place. [2022-01-19 03:12:55,101 INFO L132 encePairwiseOnDemand]: 67/73 looper letters, 13 selfloop transitions, 9 changer transitions 0/65 dead transitions. [2022-01-19 03:12:55,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 65 transitions, 219 flow [2022-01-19 03:12:55,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 03:12:55,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 03:12:55,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 519 transitions. [2022-01-19 03:12:55,104 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7899543378995434 [2022-01-19 03:12:55,104 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 519 transitions. [2022-01-19 03:12:55,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 519 transitions. [2022-01-19 03:12:55,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:12:55,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 519 transitions. [2022-01-19 03:12:55,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 57.666666666666664) internal successors, (519), 9 states have internal predecessors, (519), 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) [2022-01-19 03:12:55,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 73.0) internal successors, (730), 10 states have internal predecessors, (730), 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) [2022-01-19 03:12:55,107 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 73.0) internal successors, (730), 10 states have internal predecessors, (730), 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) [2022-01-19 03:12:55,107 INFO L186 Difference]: Start difference. First operand has 64 places, 55 transitions, 153 flow. Second operand 9 states and 519 transitions. [2022-01-19 03:12:55,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 65 transitions, 219 flow [2022-01-19 03:12:55,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 65 transitions, 215 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 03:12:55,109 INFO L242 Difference]: Finished difference. Result has 74 places, 61 transitions, 199 flow [2022-01-19 03:12:55,110 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=199, PETRI_PLACES=74, PETRI_TRANSITIONS=61} [2022-01-19 03:12:55,110 INFO L334 CegarLoopForPetriNet]: 58 programPoint places, 16 predicate places. [2022-01-19 03:12:55,110 INFO L470 AbstractCegarLoop]: Abstraction has has 74 places, 61 transitions, 199 flow [2022-01-19 03:12:55,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 57.3) internal successors, (573), 10 states have internal predecessors, (573), 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) [2022-01-19 03:12:55,111 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:55,111 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:12:55,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-19 03:12:55,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-01-19 03:12:55,333 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:55,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:55,334 INFO L85 PathProgramCache]: Analyzing trace with hash 176735389, now seen corresponding path program 1 times [2022-01-19 03:12:55,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:55,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203043782] [2022-01-19 03:12:55,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:55,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 03:12:55,349 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 03:12:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 03:12:55,366 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 03:12:55,366 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 03:12:55,366 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-19 03:12:55,366 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-19 03:12:55,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 03:12:55,367 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-01-19 03:12:55,367 WARN L235 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 03:12:55,367 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-01-19 03:12:55,383 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,383 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,383 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,383 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,383 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,383 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,383 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,383 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,384 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,384 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,384 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,384 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,384 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,384 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,384 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,384 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,384 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,384 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,384 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,384 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,385 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,385 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,385 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,385 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,385 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,385 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,385 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,385 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,385 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,385 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,385 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,385 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,386 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,386 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,386 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,386 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,386 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,386 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,386 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,386 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,386 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,386 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,386 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,386 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,387 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,387 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,387 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,387 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,387 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,387 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,387 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,387 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,387 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,387 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,387 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,388 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,388 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,388 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,388 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,388 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,388 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,388 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,388 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,388 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,389 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,389 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,389 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,389 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,389 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,389 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,389 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,389 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,389 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,389 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,389 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,389 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,390 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,390 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,390 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,390 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,390 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,390 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,390 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,390 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,391 WARN L322 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,391 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,391 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,391 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,391 WARN L322 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,391 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,392 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,392 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,392 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,392 WARN L322 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,392 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,392 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,392 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,392 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,392 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,393 WARN L322 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:12:55,394 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-19 03:12:55,396 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 03:12:55,396 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 03:12:55,396 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 03:12:55,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 204 flow [2022-01-19 03:12:55,422 INFO L129 PetriNetUnfolder]: 47/377 cut-off events. [2022-01-19 03:12:55,423 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-01-19 03:12:55,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 377 events. 47/377 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1165 event pairs, 6 based on Foata normal form. 0/325 useless extension candidates. Maximal degree in co-relation 242. Up to 32 conditions per place. [2022-01-19 03:12:55,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 80 transitions, 204 flow [2022-01-19 03:12:55,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 58 transitions, 148 flow [2022-01-19 03:12:55,426 INFO L129 PetriNetUnfolder]: 1/26 cut-off events. [2022-01-19 03:12:55,426 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 03:12:55,426 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:55,426 INFO L254 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] [2022-01-19 03:12:55,427 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:55,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:55,427 INFO L85 PathProgramCache]: Analyzing trace with hash -2143368340, now seen corresponding path program 1 times [2022-01-19 03:12:55,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:55,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728370602] [2022-01-19 03:12:55,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:55,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:55,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:55,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:12:55,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728370602] [2022-01-19 03:12:55,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728370602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:12:55,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:12:55,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:12:55,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819351976] [2022-01-19 03:12:55,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:12:55,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:12:55,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:12:55,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:12:55,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:12:55,443 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 80 [2022-01-19 03:12:55,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2022-01-19 03:12:55,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:12:55,444 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 80 [2022-01-19 03:12:55,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:12:55,463 INFO L129 PetriNetUnfolder]: 0/97 cut-off events. [2022-01-19 03:12:55,463 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-01-19 03:12:55,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 97 events. 0/97 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 0. Up to 24 conditions per place. [2022-01-19 03:12:55,463 INFO L132 encePairwiseOnDemand]: 76/80 looper letters, 13 selfloop transitions, 2 changer transitions 0/61 dead transitions. [2022-01-19 03:12:55,463 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 61 transitions, 184 flow [2022-01-19 03:12:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:12:55,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:12:55,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2022-01-19 03:12:55,464 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8375 [2022-01-19 03:12:55,464 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 201 transitions. [2022-01-19 03:12:55,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 201 transitions. [2022-01-19 03:12:55,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:12:55,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 201 transitions. [2022-01-19 03:12:55,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2022-01-19 03:12:55,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2022-01-19 03:12:55,466 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2022-01-19 03:12:55,466 INFO L186 Difference]: Start difference. First operand has 66 places, 58 transitions, 148 flow. Second operand 3 states and 201 transitions. [2022-01-19 03:12:55,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 61 transitions, 184 flow [2022-01-19 03:12:55,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 61 transitions, 172 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-01-19 03:12:55,468 INFO L242 Difference]: Finished difference. Result has 69 places, 58 transitions, 146 flow [2022-01-19 03:12:55,468 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2022-01-19 03:12:55,468 INFO L334 CegarLoopForPetriNet]: 66 programPoint places, 3 predicate places. [2022-01-19 03:12:55,468 INFO L470 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 146 flow [2022-01-19 03:12:55,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2022-01-19 03:12:55,468 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:55,469 INFO L254 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] [2022-01-19 03:12:55,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 03:12:55,469 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:55,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:55,469 INFO L85 PathProgramCache]: Analyzing trace with hash -184146753, now seen corresponding path program 1 times [2022-01-19 03:12:55,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:55,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006083770] [2022-01-19 03:12:55,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:55,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:55,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 03:12:55,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:12:55,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006083770] [2022-01-19 03:12:55,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006083770] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:12:55,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:12:55,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:12:55,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510212284] [2022-01-19 03:12:55,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:12:55,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:12:55,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:12:55,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:12:55,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:12:55,490 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 80 [2022-01-19 03:12:55,490 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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) [2022-01-19 03:12:55,490 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:12:55,490 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 80 [2022-01-19 03:12:55,490 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:12:55,544 INFO L129 PetriNetUnfolder]: 73/359 cut-off events. [2022-01-19 03:12:55,544 INFO L130 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2022-01-19 03:12:55,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 359 events. 73/359 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1623 event pairs, 35 based on Foata normal form. 4/348 useless extension candidates. Maximal degree in co-relation 523. Up to 126 conditions per place. [2022-01-19 03:12:55,547 INFO L132 encePairwiseOnDemand]: 74/80 looper letters, 13 selfloop transitions, 5 changer transitions 0/65 dead transitions. [2022-01-19 03:12:55,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 65 transitions, 211 flow [2022-01-19 03:12:55,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:12:55,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:12:55,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2022-01-19 03:12:55,549 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8291666666666667 [2022-01-19 03:12:55,549 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 199 transitions. [2022-01-19 03:12:55,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 199 transitions. [2022-01-19 03:12:55,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:12:55,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 199 transitions. [2022-01-19 03:12:55,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2022-01-19 03:12:55,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2022-01-19 03:12:55,550 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2022-01-19 03:12:55,550 INFO L186 Difference]: Start difference. First operand has 69 places, 58 transitions, 146 flow. Second operand 3 states and 199 transitions. [2022-01-19 03:12:55,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 65 transitions, 211 flow [2022-01-19 03:12:55,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 65 transitions, 209 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 03:12:55,552 INFO L242 Difference]: Finished difference. Result has 71 places, 62 transitions, 177 flow [2022-01-19 03:12:55,552 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=177, PETRI_PLACES=71, PETRI_TRANSITIONS=62} [2022-01-19 03:12:55,553 INFO L334 CegarLoopForPetriNet]: 66 programPoint places, 5 predicate places. [2022-01-19 03:12:55,553 INFO L470 AbstractCegarLoop]: Abstraction has has 71 places, 62 transitions, 177 flow [2022-01-19 03:12:55,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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) [2022-01-19 03:12:55,553 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:55,553 INFO L254 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] [2022-01-19 03:12:55,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 03:12:55,554 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:55,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:55,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1187205763, now seen corresponding path program 1 times [2022-01-19 03:12:55,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:55,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614131105] [2022-01-19 03:12:55,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:55,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:55,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:55,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:12:55,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614131105] [2022-01-19 03:12:55,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614131105] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:12:55,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724673635] [2022-01-19 03:12:55,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:55,583 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:12:55,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:12:55,584 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) [2022-01-19 03:12:55,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-19 03:12:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:55,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-19 03:12:55,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:12:55,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:55,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:12:55,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:55,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724673635] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:12:55,794 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:12:55,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-19 03:12:55,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656110345] [2022-01-19 03:12:55,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:12:55,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 03:12:55,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:12:55,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 03:12:55,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-19 03:12:55,796 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 80 [2022-01-19 03:12:55,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 62 transitions, 177 flow. Second operand has 10 states, 10 states have (on average 62.3) internal successors, (623), 10 states have internal predecessors, (623), 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) [2022-01-19 03:12:55,797 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:12:55,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 80 [2022-01-19 03:12:55,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:12:55,885 INFO L129 PetriNetUnfolder]: 54/233 cut-off events. [2022-01-19 03:12:55,886 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-01-19 03:12:55,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 387 conditions, 233 events. 54/233 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 820 event pairs, 28 based on Foata normal form. 2/217 useless extension candidates. Maximal degree in co-relation 324. Up to 92 conditions per place. [2022-01-19 03:12:55,888 INFO L132 encePairwiseOnDemand]: 74/80 looper letters, 14 selfloop transitions, 9 changer transitions 0/72 dead transitions. [2022-01-19 03:12:55,888 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 72 transitions, 245 flow [2022-01-19 03:12:55,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 03:12:55,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 03:12:55,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 565 transitions. [2022-01-19 03:12:55,890 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7847222222222222 [2022-01-19 03:12:55,890 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 565 transitions. [2022-01-19 03:12:55,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 565 transitions. [2022-01-19 03:12:55,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:12:55,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 565 transitions. [2022-01-19 03:12:55,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 62.77777777777778) internal successors, (565), 9 states have internal predecessors, (565), 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) [2022-01-19 03:12:55,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 80.0) internal successors, (800), 10 states have internal predecessors, (800), 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) [2022-01-19 03:12:55,893 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 80.0) internal successors, (800), 10 states have internal predecessors, (800), 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) [2022-01-19 03:12:55,893 INFO L186 Difference]: Start difference. First operand has 71 places, 62 transitions, 177 flow. Second operand 9 states and 565 transitions. [2022-01-19 03:12:55,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 72 transitions, 245 flow [2022-01-19 03:12:55,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 72 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 03:12:55,897 INFO L242 Difference]: Finished difference. Result has 81 places, 68 transitions, 222 flow [2022-01-19 03:12:55,897 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=222, PETRI_PLACES=81, PETRI_TRANSITIONS=68} [2022-01-19 03:12:55,897 INFO L334 CegarLoopForPetriNet]: 66 programPoint places, 15 predicate places. [2022-01-19 03:12:55,898 INFO L470 AbstractCegarLoop]: Abstraction has has 81 places, 68 transitions, 222 flow [2022-01-19 03:12:55,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.3) internal successors, (623), 10 states have internal predecessors, (623), 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) [2022-01-19 03:12:55,899 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:55,899 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:12:55,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-19 03:12:56,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:12:56,116 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:56,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:56,117 INFO L85 PathProgramCache]: Analyzing trace with hash -909312246, now seen corresponding path program 1 times [2022-01-19 03:12:56,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:56,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683555598] [2022-01-19 03:12:56,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:56,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:56,180 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-19 03:12:56,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:12:56,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683555598] [2022-01-19 03:12:56,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683555598] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:12:56,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545971895] [2022-01-19 03:12:56,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:56,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:12:56,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:12:56,182 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) [2022-01-19 03:12:56,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-19 03:12:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:56,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 03:12:56,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:12:56,373 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-19 03:12:56,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:12:56,492 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-19 03:12:56,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545971895] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:12:56,495 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:12:56,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-01-19 03:12:56,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198322258] [2022-01-19 03:12:56,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:12:56,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-19 03:12:56,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:12:56,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-19 03:12:56,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-01-19 03:12:56,498 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 80 [2022-01-19 03:12:56,499 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 68 transitions, 222 flow. Second operand has 15 states, 15 states have (on average 53.6) internal successors, (804), 15 states have internal predecessors, (804), 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) [2022-01-19 03:12:56,499 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:12:56,499 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 80 [2022-01-19 03:12:56,499 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:12:56,911 INFO L129 PetriNetUnfolder]: 768/1925 cut-off events. [2022-01-19 03:12:56,911 INFO L130 PetriNetUnfolder]: For 1179/1187 co-relation queries the response was YES. [2022-01-19 03:12:56,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4594 conditions, 1925 events. 768/1925 cut-off events. For 1179/1187 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 12692 event pairs, 54 based on Foata normal form. 13/1938 useless extension candidates. Maximal degree in co-relation 1672. Up to 663 conditions per place. [2022-01-19 03:12:56,928 INFO L132 encePairwiseOnDemand]: 68/80 looper letters, 70 selfloop transitions, 66 changer transitions 0/175 dead transitions. [2022-01-19 03:12:56,928 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 175 transitions, 999 flow [2022-01-19 03:12:56,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 03:12:56,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 03:12:56,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1082 transitions. [2022-01-19 03:12:56,931 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7118421052631579 [2022-01-19 03:12:56,931 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1082 transitions. [2022-01-19 03:12:56,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1082 transitions. [2022-01-19 03:12:56,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:12:56,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1082 transitions. [2022-01-19 03:12:56,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 56.94736842105263) internal successors, (1082), 19 states have internal predecessors, (1082), 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) [2022-01-19 03:12:56,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 80.0) internal successors, (1600), 20 states have internal predecessors, (1600), 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) [2022-01-19 03:12:56,937 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 80.0) internal successors, (1600), 20 states have internal predecessors, (1600), 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) [2022-01-19 03:12:56,937 INFO L186 Difference]: Start difference. First operand has 81 places, 68 transitions, 222 flow. Second operand 19 states and 1082 transitions. [2022-01-19 03:12:56,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 175 transitions, 999 flow [2022-01-19 03:12:56,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 175 transitions, 971 flow, removed 12 selfloop flow, removed 1 redundant places. [2022-01-19 03:12:56,942 INFO L242 Difference]: Finished difference. Result has 100 places, 121 transitions, 607 flow [2022-01-19 03:12:56,942 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=607, PETRI_PLACES=100, PETRI_TRANSITIONS=121} [2022-01-19 03:12:56,943 INFO L334 CegarLoopForPetriNet]: 66 programPoint places, 34 predicate places. [2022-01-19 03:12:56,943 INFO L470 AbstractCegarLoop]: Abstraction has has 100 places, 121 transitions, 607 flow [2022-01-19 03:12:56,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 53.6) internal successors, (804), 15 states have internal predecessors, (804), 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) [2022-01-19 03:12:56,943 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:56,944 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:12:56,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-19 03:12:57,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-01-19 03:12:57,160 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:57,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:57,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1362214409, now seen corresponding path program 1 times [2022-01-19 03:12:57,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:57,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891847490] [2022-01-19 03:12:57,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:57,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:57,231 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 03:12:57,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:12:57,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891847490] [2022-01-19 03:12:57,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891847490] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:12:57,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643664577] [2022-01-19 03:12:57,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:57,232 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:12:57,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:12:57,233 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) [2022-01-19 03:12:57,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-19 03:12:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:57,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 03:12:57,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:12:57,455 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 03:12:57,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:12:57,603 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 03:12:57,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643664577] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:12:57,603 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:12:57,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2022-01-19 03:12:57,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130827244] [2022-01-19 03:12:57,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:12:57,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 03:12:57,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:12:57,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 03:12:57,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2022-01-19 03:12:57,607 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 80 [2022-01-19 03:12:57,608 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 121 transitions, 607 flow. Second operand has 20 states, 20 states have (on average 52.9) internal successors, (1058), 20 states have internal predecessors, (1058), 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) [2022-01-19 03:12:57,608 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:12:57,608 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 80 [2022-01-19 03:12:57,608 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:12:58,636 INFO L129 PetriNetUnfolder]: 1764/4298 cut-off events. [2022-01-19 03:12:58,637 INFO L130 PetriNetUnfolder]: For 4575/4585 co-relation queries the response was YES. [2022-01-19 03:12:58,656 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12409 conditions, 4298 events. 1764/4298 cut-off events. For 4575/4585 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 34284 event pairs, 65 based on Foata normal form. 28/4326 useless extension candidates. Maximal degree in co-relation 4818. Up to 1292 conditions per place. [2022-01-19 03:12:58,683 INFO L132 encePairwiseOnDemand]: 66/80 looper letters, 113 selfloop transitions, 180 changer transitions 0/337 dead transitions. [2022-01-19 03:12:58,684 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 337 transitions, 2519 flow [2022-01-19 03:12:58,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-19 03:12:58,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-01-19 03:12:58,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 2224 transitions. [2022-01-19 03:12:58,689 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6780487804878049 [2022-01-19 03:12:58,689 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 2224 transitions. [2022-01-19 03:12:58,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 2224 transitions. [2022-01-19 03:12:58,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:12:58,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 2224 transitions. [2022-01-19 03:12:58,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 54.24390243902439) internal successors, (2224), 41 states have internal predecessors, (2224), 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) [2022-01-19 03:12:58,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 80.0) internal successors, (3360), 42 states have internal predecessors, (3360), 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) [2022-01-19 03:12:58,700 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 80.0) internal successors, (3360), 42 states have internal predecessors, (3360), 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) [2022-01-19 03:12:58,700 INFO L186 Difference]: Start difference. First operand has 100 places, 121 transitions, 607 flow. Second operand 41 states and 2224 transitions. [2022-01-19 03:12:58,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 337 transitions, 2519 flow [2022-01-19 03:12:58,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 337 transitions, 2497 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-01-19 03:12:58,725 INFO L242 Difference]: Finished difference. Result has 140 places, 255 transitions, 1863 flow [2022-01-19 03:12:58,725 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=1863, PETRI_PLACES=140, PETRI_TRANSITIONS=255} [2022-01-19 03:12:58,725 INFO L334 CegarLoopForPetriNet]: 66 programPoint places, 74 predicate places. [2022-01-19 03:12:58,725 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 255 transitions, 1863 flow [2022-01-19 03:12:58,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 52.9) internal successors, (1058), 20 states have internal predecessors, (1058), 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) [2022-01-19 03:12:58,726 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:12:58,726 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:12:58,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-19 03:12:58,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-01-19 03:12:58,940 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:12:58,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:12:58,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1109338339, now seen corresponding path program 1 times [2022-01-19 03:12:58,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:12:58,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104668996] [2022-01-19 03:12:58,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:58,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:12:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:58,998 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:58,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:12:58,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104668996] [2022-01-19 03:12:58,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104668996] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:12:58,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116894450] [2022-01-19 03:12:58,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:12:58,998 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:12:58,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:12:59,000 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) [2022-01-19 03:12:59,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-19 03:12:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:12:59,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-19 03:12:59,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:12:59,244 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:59,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:12:59,445 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:12:59,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116894450] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:12:59,445 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:12:59,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 24 [2022-01-19 03:12:59,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140512086] [2022-01-19 03:12:59,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:12:59,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-19 03:12:59,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:12:59,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-19 03:12:59,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552 [2022-01-19 03:12:59,448 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 80 [2022-01-19 03:12:59,449 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 255 transitions, 1863 flow. Second operand has 24 states, 24 states have (on average 52.75) internal successors, (1266), 24 states have internal predecessors, (1266), 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) [2022-01-19 03:12:59,449 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:12:59,449 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 80 [2022-01-19 03:12:59,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:01,076 INFO L129 PetriNetUnfolder]: 2710/6167 cut-off events. [2022-01-19 03:13:01,076 INFO L130 PetriNetUnfolder]: For 14796/14898 co-relation queries the response was YES. [2022-01-19 03:13:01,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20066 conditions, 6167 events. 2710/6167 cut-off events. For 14796/14898 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 49685 event pairs, 0 based on Foata normal form. 295/6461 useless extension candidates. Maximal degree in co-relation 9451. Up to 1549 conditions per place. [2022-01-19 03:13:01,143 INFO L132 encePairwiseOnDemand]: 67/80 looper letters, 380 selfloop transitions, 600 changer transitions 0/1041 dead transitions. [2022-01-19 03:13:01,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 1041 transitions, 10637 flow [2022-01-19 03:13:01,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-19 03:13:01,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2022-01-19 03:13:01,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 3228 transitions. [2022-01-19 03:13:01,149 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6838983050847458 [2022-01-19 03:13:01,149 INFO L72 ComplementDD]: Start complementDD. Operand 59 states and 3228 transitions. [2022-01-19 03:13:01,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 3228 transitions. [2022-01-19 03:13:01,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:01,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 59 states and 3228 transitions. [2022-01-19 03:13:01,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 60 states, 59 states have (on average 54.71186440677966) internal successors, (3228), 59 states have internal predecessors, (3228), 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) [2022-01-19 03:13:01,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 60 states, 60 states have (on average 80.0) internal successors, (4800), 60 states have internal predecessors, (4800), 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) [2022-01-19 03:13:01,167 INFO L81 ComplementDD]: Finished complementDD. Result has 60 states, 60 states have (on average 80.0) internal successors, (4800), 60 states have internal predecessors, (4800), 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) [2022-01-19 03:13:01,167 INFO L186 Difference]: Start difference. First operand has 140 places, 255 transitions, 1863 flow. Second operand 59 states and 3228 transitions. [2022-01-19 03:13:01,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 1041 transitions, 10637 flow [2022-01-19 03:13:01,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 1041 transitions, 10210 flow, removed 15 selfloop flow, removed 15 redundant places. [2022-01-19 03:13:01,240 INFO L242 Difference]: Finished difference. Result has 187 places, 737 transitions, 6892 flow [2022-01-19 03:13:01,241 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=1661, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=6892, PETRI_PLACES=187, PETRI_TRANSITIONS=737} [2022-01-19 03:13:01,241 INFO L334 CegarLoopForPetriNet]: 66 programPoint places, 121 predicate places. [2022-01-19 03:13:01,241 INFO L470 AbstractCegarLoop]: Abstraction has has 187 places, 737 transitions, 6892 flow [2022-01-19 03:13:01,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 52.75) internal successors, (1266), 24 states have internal predecessors, (1266), 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) [2022-01-19 03:13:01,242 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:01,242 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:13:01,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-19 03:13:01,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:13:01,459 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:01,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:01,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1693116247, now seen corresponding path program 1 times [2022-01-19 03:13:01,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:01,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595343257] [2022-01-19 03:13:01,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:01,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 03:13:01,531 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 03:13:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 03:13:01,548 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 03:13:01,548 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 03:13:01,548 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-19 03:13:01,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-19 03:13:01,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-19 03:13:01,549 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:13:01,549 WARN L235 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 03:13:01,550 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2022-01-19 03:13:01,558 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,558 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,558 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,558 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,558 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,558 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,558 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,558 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,558 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,559 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,559 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,559 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,559 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,559 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,559 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,559 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,559 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,559 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,559 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,559 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,560 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,560 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,560 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,560 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,560 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,560 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,560 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,560 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,560 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,560 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,560 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,561 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,561 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,561 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,561 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,561 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,561 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,561 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,561 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,561 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,561 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,561 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,562 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,562 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,562 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,562 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,562 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,562 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,562 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,562 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,562 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,563 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,563 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,563 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,563 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,563 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,563 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,563 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,564 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,564 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,564 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,564 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,564 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,564 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,564 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,564 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,564 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,564 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,564 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,564 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,564 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,565 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,565 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,565 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,565 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,565 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,565 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,566 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,566 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,566 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,566 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,566 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,566 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,566 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,566 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,566 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,566 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,566 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,566 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,567 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,567 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,567 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,567 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,567 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,567 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,567 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,567 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,567 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,568 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,568 WARN L322 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,568 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,568 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,568 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,568 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,568 WARN L322 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,569 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,569 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,569 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,569 WARN L322 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,569 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,569 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,569 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,569 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,569 WARN L322 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,570 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,570 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,570 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,570 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,570 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,570 WARN L322 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:01,572 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-01-19 03:13:01,573 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 03:13:01,574 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 03:13:01,574 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 03:13:01,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 87 transitions, 234 flow [2022-01-19 03:13:01,621 INFO L129 PetriNetUnfolder]: 98/672 cut-off events. [2022-01-19 03:13:01,621 INFO L130 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2022-01-19 03:13:01,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 672 events. 98/672 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2833 event pairs, 23 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 422. Up to 80 conditions per place. [2022-01-19 03:13:01,623 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 87 transitions, 234 flow [2022-01-19 03:13:01,624 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 64 transitions, 173 flow [2022-01-19 03:13:01,625 INFO L129 PetriNetUnfolder]: 1/26 cut-off events. [2022-01-19 03:13:01,626 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 03:13:01,626 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:01,626 INFO L254 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] [2022-01-19 03:13:01,626 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:01,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:01,626 INFO L85 PathProgramCache]: Analyzing trace with hash 239291490, now seen corresponding path program 1 times [2022-01-19 03:13:01,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:01,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638938442] [2022-01-19 03:13:01,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:01,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:01,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:01,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:01,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638938442] [2022-01-19 03:13:01,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638938442] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:13:01,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:13:01,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 03:13:01,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096617741] [2022-01-19 03:13:01,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:13:01,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 03:13:01,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:01,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 03:13:01,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 03:13:01,640 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 87 [2022-01-19 03:13:01,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 64 transitions, 173 flow. Second operand has 2 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 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) [2022-01-19 03:13:01,641 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:01,641 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 87 [2022-01-19 03:13:01,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:01,653 INFO L129 PetriNetUnfolder]: 0/118 cut-off events. [2022-01-19 03:13:01,653 INFO L130 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2022-01-19 03:13:01,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 118 events. 0/118 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 6/118 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2022-01-19 03:13:01,654 INFO L132 encePairwiseOnDemand]: 86/87 looper letters, 5 selfloop transitions, 0 changer transitions 0/63 dead transitions. [2022-01-19 03:13:01,654 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 63 transitions, 181 flow [2022-01-19 03:13:01,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 03:13:01,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 03:13:01,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 152 transitions. [2022-01-19 03:13:01,655 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8735632183908046 [2022-01-19 03:13:01,655 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 152 transitions. [2022-01-19 03:13:01,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 152 transitions. [2022-01-19 03:13:01,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:01,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 152 transitions. [2022-01-19 03:13:01,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 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) [2022-01-19 03:13:01,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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) [2022-01-19 03:13:01,656 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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) [2022-01-19 03:13:01,656 INFO L186 Difference]: Start difference. First operand has 74 places, 64 transitions, 173 flow. Second operand 2 states and 152 transitions. [2022-01-19 03:13:01,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 63 transitions, 181 flow [2022-01-19 03:13:01,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 63 transitions, 161 flow, removed 10 selfloop flow, removed 0 redundant places. [2022-01-19 03:13:01,657 INFO L242 Difference]: Finished difference. Result has 75 places, 63 transitions, 151 flow [2022-01-19 03:13:01,658 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=151, PETRI_PLACES=75, PETRI_TRANSITIONS=63} [2022-01-19 03:13:01,658 INFO L334 CegarLoopForPetriNet]: 74 programPoint places, 1 predicate places. [2022-01-19 03:13:01,658 INFO L470 AbstractCegarLoop]: Abstraction has has 75 places, 63 transitions, 151 flow [2022-01-19 03:13:01,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 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) [2022-01-19 03:13:01,658 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:01,659 INFO L254 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] [2022-01-19 03:13:01,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-19 03:13:01,659 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:01,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:01,659 INFO L85 PathProgramCache]: Analyzing trace with hash 239292451, now seen corresponding path program 1 times [2022-01-19 03:13:01,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:01,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641396619] [2022-01-19 03:13:01,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:01,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:01,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:01,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:01,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641396619] [2022-01-19 03:13:01,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641396619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:13:01,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:13:01,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:13:01,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165598907] [2022-01-19 03:13:01,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:13:01,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:13:01,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:01,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:13:01,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:13:01,674 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 87 [2022-01-19 03:13:01,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 63 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2022-01-19 03:13:01,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:01,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 87 [2022-01-19 03:13:01,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:01,695 INFO L129 PetriNetUnfolder]: 0/115 cut-off events. [2022-01-19 03:13:01,695 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-01-19 03:13:01,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 115 events. 0/115 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 0. Up to 30 conditions per place. [2022-01-19 03:13:01,696 INFO L132 encePairwiseOnDemand]: 84/87 looper letters, 14 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2022-01-19 03:13:01,696 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 67 transitions, 191 flow [2022-01-19 03:13:01,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:13:01,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:13:01,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2022-01-19 03:13:01,697 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8237547892720306 [2022-01-19 03:13:01,697 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 215 transitions. [2022-01-19 03:13:01,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 215 transitions. [2022-01-19 03:13:01,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:01,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 215 transitions. [2022-01-19 03:13:01,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2022-01-19 03:13:01,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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) [2022-01-19 03:13:01,698 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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) [2022-01-19 03:13:01,698 INFO L186 Difference]: Start difference. First operand has 75 places, 63 transitions, 151 flow. Second operand 3 states and 215 transitions. [2022-01-19 03:13:01,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 67 transitions, 191 flow [2022-01-19 03:13:01,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 67 transitions, 191 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 03:13:01,699 INFO L242 Difference]: Finished difference. Result has 78 places, 64 transitions, 163 flow [2022-01-19 03:13:01,699 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=78, PETRI_TRANSITIONS=64} [2022-01-19 03:13:01,700 INFO L334 CegarLoopForPetriNet]: 74 programPoint places, 4 predicate places. [2022-01-19 03:13:01,700 INFO L470 AbstractCegarLoop]: Abstraction has has 78 places, 64 transitions, 163 flow [2022-01-19 03:13:01,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2022-01-19 03:13:01,700 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:01,700 INFO L254 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] [2022-01-19 03:13:01,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-19 03:13:01,700 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:01,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:01,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1483448859, now seen corresponding path program 1 times [2022-01-19 03:13:01,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:01,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657901451] [2022-01-19 03:13:01,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:01,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:01,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 03:13:01,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:01,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657901451] [2022-01-19 03:13:01,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657901451] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:13:01,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:13:01,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:13:01,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590185936] [2022-01-19 03:13:01,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:13:01,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:13:01,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:01,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:13:01,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:13:01,717 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 87 [2022-01-19 03:13:01,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 64 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2022-01-19 03:13:01,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:01,718 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 87 [2022-01-19 03:13:01,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:01,786 INFO L129 PetriNetUnfolder]: 212/733 cut-off events. [2022-01-19 03:13:01,787 INFO L130 PetriNetUnfolder]: For 92/92 co-relation queries the response was YES. [2022-01-19 03:13:01,789 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1205 conditions, 733 events. 212/733 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4068 event pairs, 118 based on Foata normal form. 5/703 useless extension candidates. Maximal degree in co-relation 1195. Up to 327 conditions per place. [2022-01-19 03:13:01,792 INFO L132 encePairwiseOnDemand]: 80/87 looper letters, 16 selfloop transitions, 6 changer transitions 0/73 dead transitions. [2022-01-19 03:13:01,792 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 73 transitions, 245 flow [2022-01-19 03:13:01,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:13:01,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:13:01,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2022-01-19 03:13:01,793 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8237547892720306 [2022-01-19 03:13:01,793 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 215 transitions. [2022-01-19 03:13:01,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 215 transitions. [2022-01-19 03:13:01,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:01,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 215 transitions. [2022-01-19 03:13:01,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2022-01-19 03:13:01,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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) [2022-01-19 03:13:01,795 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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) [2022-01-19 03:13:01,795 INFO L186 Difference]: Start difference. First operand has 78 places, 64 transitions, 163 flow. Second operand 3 states and 215 transitions. [2022-01-19 03:13:01,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 73 transitions, 245 flow [2022-01-19 03:13:01,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 73 transitions, 243 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 03:13:01,797 INFO L242 Difference]: Finished difference. Result has 80 places, 69 transitions, 201 flow [2022-01-19 03:13:01,797 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=80, PETRI_TRANSITIONS=69} [2022-01-19 03:13:01,797 INFO L334 CegarLoopForPetriNet]: 74 programPoint places, 6 predicate places. [2022-01-19 03:13:01,797 INFO L470 AbstractCegarLoop]: Abstraction has has 80 places, 69 transitions, 201 flow [2022-01-19 03:13:01,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2022-01-19 03:13:01,798 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:01,798 INFO L254 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] [2022-01-19 03:13:01,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 03:13:01,798 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:01,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:01,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1737726477, now seen corresponding path program 1 times [2022-01-19 03:13:01,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:01,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483943859] [2022-01-19 03:13:01,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:01,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:01,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:01,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:01,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483943859] [2022-01-19 03:13:01,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483943859] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:13:01,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184653343] [2022-01-19 03:13:01,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:01,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:13:01,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:13:01,823 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) [2022-01-19 03:13:01,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-19 03:13:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:01,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-19 03:13:01,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:13:01,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:01,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:13:02,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:02,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184653343] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:13:02,039 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:13:02,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-19 03:13:02,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063329504] [2022-01-19 03:13:02,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:13:02,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 03:13:02,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:02,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 03:13:02,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-19 03:13:02,041 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 87 [2022-01-19 03:13:02,042 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 69 transitions, 201 flow. Second operand has 10 states, 10 states have (on average 67.3) internal successors, (673), 10 states have internal predecessors, (673), 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) [2022-01-19 03:13:02,042 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:02,042 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 87 [2022-01-19 03:13:02,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:02,127 INFO L129 PetriNetUnfolder]: 161/489 cut-off events. [2022-01-19 03:13:02,128 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-01-19 03:13:02,129 INFO L84 FinitePrefix]: Finished finitePrefix Result has 812 conditions, 489 events. 161/489 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2426 event pairs, 94 based on Foata normal form. 2/442 useless extension candidates. Maximal degree in co-relation 801. Up to 246 conditions per place. [2022-01-19 03:13:02,131 INFO L132 encePairwiseOnDemand]: 81/87 looper letters, 15 selfloop transitions, 9 changer transitions 0/79 dead transitions. [2022-01-19 03:13:02,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 79 transitions, 271 flow [2022-01-19 03:13:02,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 03:13:02,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 03:13:02,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 611 transitions. [2022-01-19 03:13:02,132 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7803320561941252 [2022-01-19 03:13:02,132 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 611 transitions. [2022-01-19 03:13:02,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 611 transitions. [2022-01-19 03:13:02,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:02,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 611 transitions. [2022-01-19 03:13:02,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 67.88888888888889) internal successors, (611), 9 states have internal predecessors, (611), 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) [2022-01-19 03:13:02,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 87.0) internal successors, (870), 10 states have internal predecessors, (870), 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) [2022-01-19 03:13:02,135 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 87.0) internal successors, (870), 10 states have internal predecessors, (870), 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) [2022-01-19 03:13:02,135 INFO L186 Difference]: Start difference. First operand has 80 places, 69 transitions, 201 flow. Second operand 9 states and 611 transitions. [2022-01-19 03:13:02,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 79 transitions, 271 flow [2022-01-19 03:13:02,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 79 transitions, 265 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 03:13:02,137 INFO L242 Difference]: Finished difference. Result has 90 places, 75 transitions, 245 flow [2022-01-19 03:13:02,137 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=245, PETRI_PLACES=90, PETRI_TRANSITIONS=75} [2022-01-19 03:13:02,137 INFO L334 CegarLoopForPetriNet]: 74 programPoint places, 16 predicate places. [2022-01-19 03:13:02,138 INFO L470 AbstractCegarLoop]: Abstraction has has 90 places, 75 transitions, 245 flow [2022-01-19 03:13:02,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.3) internal successors, (673), 10 states have internal predecessors, (673), 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) [2022-01-19 03:13:02,138 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:02,138 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:13:02,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-19 03:13:02,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:13:02,347 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:02,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:02,347 INFO L85 PathProgramCache]: Analyzing trace with hash 157483872, now seen corresponding path program 1 times [2022-01-19 03:13:02,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:02,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226378243] [2022-01-19 03:13:02,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:02,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:02,412 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-19 03:13:02,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:02,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226378243] [2022-01-19 03:13:02,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226378243] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:13:02,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609710864] [2022-01-19 03:13:02,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:02,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:13:02,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:13:02,414 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) [2022-01-19 03:13:02,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-19 03:13:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:02,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 03:13:02,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:13:02,633 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:02,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:13:02,800 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:02,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609710864] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:13:02,800 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:13:02,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 21 [2022-01-19 03:13:02,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546561355] [2022-01-19 03:13:02,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:13:02,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-19 03:13:02,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:02,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-19 03:13:02,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2022-01-19 03:13:02,802 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 87 [2022-01-19 03:13:02,804 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 75 transitions, 245 flow. Second operand has 21 states, 21 states have (on average 57.0) internal successors, (1197), 21 states have internal predecessors, (1197), 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) [2022-01-19 03:13:02,804 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:02,804 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 87 [2022-01-19 03:13:02,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:04,726 INFO L129 PetriNetUnfolder]: 1890/3716 cut-off events. [2022-01-19 03:13:04,726 INFO L130 PetriNetUnfolder]: For 2302/2302 co-relation queries the response was YES. [2022-01-19 03:13:04,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9452 conditions, 3716 events. 1890/3716 cut-off events. For 2302/2302 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 23790 event pairs, 0 based on Foata normal form. 137/3853 useless extension candidates. Maximal degree in co-relation 9439. Up to 1597 conditions per place. [2022-01-19 03:13:04,759 INFO L132 encePairwiseOnDemand]: 73/87 looper letters, 188 selfloop transitions, 291 changer transitions 0/518 dead transitions. [2022-01-19 03:13:04,759 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 518 transitions, 2986 flow [2022-01-19 03:13:04,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-01-19 03:13:04,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2022-01-19 03:13:04,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 5377 transitions. [2022-01-19 03:13:04,768 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6791714033093343 [2022-01-19 03:13:04,768 INFO L72 ComplementDD]: Start complementDD. Operand 91 states and 5377 transitions. [2022-01-19 03:13:04,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 5377 transitions. [2022-01-19 03:13:04,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:04,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 91 states and 5377 transitions. [2022-01-19 03:13:04,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 92 states, 91 states have (on average 59.08791208791209) internal successors, (5377), 91 states have internal predecessors, (5377), 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) [2022-01-19 03:13:04,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 92 states, 92 states have (on average 87.0) internal successors, (8004), 92 states have internal predecessors, (8004), 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) [2022-01-19 03:13:04,790 INFO L81 ComplementDD]: Finished complementDD. Result has 92 states, 92 states have (on average 87.0) internal successors, (8004), 92 states have internal predecessors, (8004), 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) [2022-01-19 03:13:04,790 INFO L186 Difference]: Start difference. First operand has 90 places, 75 transitions, 245 flow. Second operand 91 states and 5377 transitions. [2022-01-19 03:13:04,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 518 transitions, 2986 flow [2022-01-19 03:13:04,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 518 transitions, 2879 flow, removed 24 selfloop flow, removed 4 redundant places. [2022-01-19 03:13:04,802 INFO L242 Difference]: Finished difference. Result has 186 places, 344 transitions, 1980 flow [2022-01-19 03:13:04,802 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=91, PETRI_FLOW=1980, PETRI_PLACES=186, PETRI_TRANSITIONS=344} [2022-01-19 03:13:04,802 INFO L334 CegarLoopForPetriNet]: 74 programPoint places, 112 predicate places. [2022-01-19 03:13:04,803 INFO L470 AbstractCegarLoop]: Abstraction has has 186 places, 344 transitions, 1980 flow [2022-01-19 03:13:04,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 57.0) internal successors, (1197), 21 states have internal predecessors, (1197), 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) [2022-01-19 03:13:04,803 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:04,803 INFO L254 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:13:04,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-19 03:13:05,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-01-19 03:13:05,026 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:05,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:05,026 INFO L85 PathProgramCache]: Analyzing trace with hash -184578877, now seen corresponding path program 1 times [2022-01-19 03:13:05,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:05,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587798743] [2022-01-19 03:13:05,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:05,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 03:13:05,052 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 03:13:05,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 03:13:05,080 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 03:13:05,080 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 03:13:05,081 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-19 03:13:05,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-19 03:13:05,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-19 03:13:05,081 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-19 03:13:05,081 WARN L235 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 03:13:05,082 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2022-01-19 03:13:05,093 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,093 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,093 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,093 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,093 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,093 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,093 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,093 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,094 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,094 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,094 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,094 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,094 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,094 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,094 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,094 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,094 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,094 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,094 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,095 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,095 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,095 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,095 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,095 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,095 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,095 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,095 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,095 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,095 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,095 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,095 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,096 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,096 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,096 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,096 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,096 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,096 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,096 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,096 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,096 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,096 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,097 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,097 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,097 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,097 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,097 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,097 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,097 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,097 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,097 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,097 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,097 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,097 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,098 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,098 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,098 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,098 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,098 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,098 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,098 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,099 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,099 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,099 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,099 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,099 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,099 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,099 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,099 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,099 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,100 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,100 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,100 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,100 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,100 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,100 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,100 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,100 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,100 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,100 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,100 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,101 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,101 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,101 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,101 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,101 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,101 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,101 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,101 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,101 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,101 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,101 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,101 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,102 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,102 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,102 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,102 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,102 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,102 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,102 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,102 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,103 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,103 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,103 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,103 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,103 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,103 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,103 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,103 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,103 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,103 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,104 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,104 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,104 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,104 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,104 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,104 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,104 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,104 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,104 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,104 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,105 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,105 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,105 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,105 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,105 WARN L322 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,105 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,106 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,106 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,106 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,106 WARN L322 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,106 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,106 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,106 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,106 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,106 WARN L322 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,107 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,107 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,107 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,107 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,107 WARN L322 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,108 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,108 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,108 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,108 WARN L322 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,108 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,109 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,109 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,109 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,110 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,110 WARN L322 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:05,112 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-01-19 03:13:05,113 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 03:13:05,113 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 03:13:05,114 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 03:13:05,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 266 flow [2022-01-19 03:13:05,215 INFO L129 PetriNetUnfolder]: 213/1255 cut-off events. [2022-01-19 03:13:05,215 INFO L130 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2022-01-19 03:13:05,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1487 conditions, 1255 events. 213/1255 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6828 event pairs, 72 based on Foata normal form. 0/1099 useless extension candidates. Maximal degree in co-relation 771. Up to 192 conditions per place. [2022-01-19 03:13:05,219 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 94 transitions, 266 flow [2022-01-19 03:13:05,221 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 70 transitions, 200 flow [2022-01-19 03:13:05,222 INFO L129 PetriNetUnfolder]: 1/26 cut-off events. [2022-01-19 03:13:05,222 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 03:13:05,222 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:05,222 INFO L254 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] [2022-01-19 03:13:05,222 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:05,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:05,223 INFO L85 PathProgramCache]: Analyzing trace with hash -543324351, now seen corresponding path program 1 times [2022-01-19 03:13:05,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:05,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126634547] [2022-01-19 03:13:05,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:05,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:05,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:05,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126634547] [2022-01-19 03:13:05,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126634547] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:13:05,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:13:05,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:13:05,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190760188] [2022-01-19 03:13:05,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:13:05,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:13:05,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:05,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:13:05,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:13:05,241 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 94 [2022-01-19 03:13:05,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 70 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2022-01-19 03:13:05,241 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:05,241 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 94 [2022-01-19 03:13:05,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:05,263 INFO L129 PetriNetUnfolder]: 0/133 cut-off events. [2022-01-19 03:13:05,263 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2022-01-19 03:13:05,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 133 events. 0/133 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 102 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 0. Up to 36 conditions per place. [2022-01-19 03:13:05,263 INFO L132 encePairwiseOnDemand]: 90/94 looper letters, 15 selfloop transitions, 2 changer transitions 0/73 dead transitions. [2022-01-19 03:13:05,264 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 73 transitions, 240 flow [2022-01-19 03:13:05,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:13:05,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:13:05,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 233 transitions. [2022-01-19 03:13:05,266 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8262411347517731 [2022-01-19 03:13:05,267 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 233 transitions. [2022-01-19 03:13:05,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 233 transitions. [2022-01-19 03:13:05,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:05,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 233 transitions. [2022-01-19 03:13:05,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2022-01-19 03:13:05,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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) [2022-01-19 03:13:05,268 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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) [2022-01-19 03:13:05,268 INFO L186 Difference]: Start difference. First operand has 82 places, 70 transitions, 200 flow. Second operand 3 states and 233 transitions. [2022-01-19 03:13:05,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 73 transitions, 240 flow [2022-01-19 03:13:05,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 73 transitions, 210 flow, removed 15 selfloop flow, removed 0 redundant places. [2022-01-19 03:13:05,270 INFO L242 Difference]: Finished difference. Result has 85 places, 70 transitions, 180 flow [2022-01-19 03:13:05,270 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=85, PETRI_TRANSITIONS=70} [2022-01-19 03:13:05,270 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 3 predicate places. [2022-01-19 03:13:05,270 INFO L470 AbstractCegarLoop]: Abstraction has has 85 places, 70 transitions, 180 flow [2022-01-19 03:13:05,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2022-01-19 03:13:05,271 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:05,271 INFO L254 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] [2022-01-19 03:13:05,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-19 03:13:05,271 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:05,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:05,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1763634818, now seen corresponding path program 1 times [2022-01-19 03:13:05,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:05,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505104300] [2022-01-19 03:13:05,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:05,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:05,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 03:13:05,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:05,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505104300] [2022-01-19 03:13:05,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505104300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:13:05,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:13:05,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:13:05,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207086910] [2022-01-19 03:13:05,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:13:05,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:13:05,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:05,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:13:05,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:13:05,297 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 94 [2022-01-19 03:13:05,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 70 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2022-01-19 03:13:05,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:05,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 94 [2022-01-19 03:13:05,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:05,422 INFO L129 PetriNetUnfolder]: 558/1515 cut-off events. [2022-01-19 03:13:05,423 INFO L130 PetriNetUnfolder]: For 188/188 co-relation queries the response was YES. [2022-01-19 03:13:05,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2569 conditions, 1515 events. 558/1515 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 9726 event pairs, 345 based on Foata normal form. 6/1451 useless extension candidates. Maximal degree in co-relation 2522. Up to 799 conditions per place. [2022-01-19 03:13:05,435 INFO L132 encePairwiseOnDemand]: 86/94 looper letters, 19 selfloop transitions, 7 changer transitions 0/81 dead transitions. [2022-01-19 03:13:05,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 81 transitions, 279 flow [2022-01-19 03:13:05,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:13:05,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:13:05,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions. [2022-01-19 03:13:05,436 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8191489361702128 [2022-01-19 03:13:05,436 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 231 transitions. [2022-01-19 03:13:05,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 231 transitions. [2022-01-19 03:13:05,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:05,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 231 transitions. [2022-01-19 03:13:05,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2022-01-19 03:13:05,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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) [2022-01-19 03:13:05,437 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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) [2022-01-19 03:13:05,437 INFO L186 Difference]: Start difference. First operand has 85 places, 70 transitions, 180 flow. Second operand 3 states and 231 transitions. [2022-01-19 03:13:05,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 81 transitions, 279 flow [2022-01-19 03:13:05,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 81 transitions, 277 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 03:13:05,439 INFO L242 Difference]: Finished difference. Result has 87 places, 76 transitions, 225 flow [2022-01-19 03:13:05,439 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=87, PETRI_TRANSITIONS=76} [2022-01-19 03:13:05,440 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 5 predicate places. [2022-01-19 03:13:05,440 INFO L470 AbstractCegarLoop]: Abstraction has has 87 places, 76 transitions, 225 flow [2022-01-19 03:13:05,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2022-01-19 03:13:05,440 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:05,440 INFO L254 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] [2022-01-19 03:13:05,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-19 03:13:05,440 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:05,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:05,441 INFO L85 PathProgramCache]: Analyzing trace with hash -35190009, now seen corresponding path program 1 times [2022-01-19 03:13:05,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:05,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816638473] [2022-01-19 03:13:05,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:05,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:05,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:05,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:05,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816638473] [2022-01-19 03:13:05,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816638473] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:13:05,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931116501] [2022-01-19 03:13:05,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:05,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:13:05,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:13:05,465 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) [2022-01-19 03:13:05,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-19 03:13:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:05,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-19 03:13:05,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:13:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:05,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:13:05,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:05,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931116501] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:13:05,663 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:13:05,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-19 03:13:05,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514414385] [2022-01-19 03:13:05,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:13:05,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 03:13:05,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:05,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 03:13:05,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-19 03:13:05,665 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2022-01-19 03:13:05,666 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 76 transitions, 225 flow. Second operand has 10 states, 10 states have (on average 72.3) internal successors, (723), 10 states have internal predecessors, (723), 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) [2022-01-19 03:13:05,666 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:05,666 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2022-01-19 03:13:05,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:05,812 INFO L129 PetriNetUnfolder]: 427/1047 cut-off events. [2022-01-19 03:13:05,812 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-19 03:13:05,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1744 conditions, 1047 events. 427/1047 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 6076 event pairs, 272 based on Foata normal form. 2/947 useless extension candidates. Maximal degree in co-relation 1679. Up to 607 conditions per place. [2022-01-19 03:13:05,818 INFO L132 encePairwiseOnDemand]: 88/94 looper letters, 16 selfloop transitions, 9 changer transitions 0/86 dead transitions. [2022-01-19 03:13:05,818 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 86 transitions, 297 flow [2022-01-19 03:13:05,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 03:13:05,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 03:13:05,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 657 transitions. [2022-01-19 03:13:05,820 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.776595744680851 [2022-01-19 03:13:05,820 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 657 transitions. [2022-01-19 03:13:05,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 657 transitions. [2022-01-19 03:13:05,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:05,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 657 transitions. [2022-01-19 03:13:05,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 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) [2022-01-19 03:13:05,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 94.0) internal successors, (940), 10 states have internal predecessors, (940), 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) [2022-01-19 03:13:05,823 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 94.0) internal successors, (940), 10 states have internal predecessors, (940), 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) [2022-01-19 03:13:05,823 INFO L186 Difference]: Start difference. First operand has 87 places, 76 transitions, 225 flow. Second operand 9 states and 657 transitions. [2022-01-19 03:13:05,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 86 transitions, 297 flow [2022-01-19 03:13:05,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 86 transitions, 290 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 03:13:05,825 INFO L242 Difference]: Finished difference. Result has 97 places, 82 transitions, 268 flow [2022-01-19 03:13:05,825 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=268, PETRI_PLACES=97, PETRI_TRANSITIONS=82} [2022-01-19 03:13:05,825 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 15 predicate places. [2022-01-19 03:13:05,825 INFO L470 AbstractCegarLoop]: Abstraction has has 97 places, 82 transitions, 268 flow [2022-01-19 03:13:05,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 72.3) internal successors, (723), 10 states have internal predecessors, (723), 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) [2022-01-19 03:13:05,826 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:05,826 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:13:05,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-19 03:13:06,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-01-19 03:13:06,048 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:06,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:06,049 INFO L85 PathProgramCache]: Analyzing trace with hash 313922154, now seen corresponding path program 1 times [2022-01-19 03:13:06,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:06,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585798258] [2022-01-19 03:13:06,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:06,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:06,113 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-19 03:13:06,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:06,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585798258] [2022-01-19 03:13:06,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585798258] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:13:06,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399170816] [2022-01-19 03:13:06,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:06,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:13:06,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:13:06,115 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) [2022-01-19 03:13:06,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-19 03:13:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:06,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 03:13:06,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:13:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:06,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:13:06,473 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:06,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399170816] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:13:06,474 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:13:06,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 21 [2022-01-19 03:13:06,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705453780] [2022-01-19 03:13:06,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:13:06,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-19 03:13:06,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:06,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-19 03:13:06,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2022-01-19 03:13:06,476 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 94 [2022-01-19 03:13:06,477 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 82 transitions, 268 flow. Second operand has 21 states, 21 states have (on average 61.0) internal successors, (1281), 21 states have internal predecessors, (1281), 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) [2022-01-19 03:13:06,477 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:06,477 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 94 [2022-01-19 03:13:06,477 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:09,020 INFO L129 PetriNetUnfolder]: 4756/8422 cut-off events. [2022-01-19 03:13:09,020 INFO L130 PetriNetUnfolder]: For 5551/5551 co-relation queries the response was YES. [2022-01-19 03:13:09,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21970 conditions, 8422 events. 4756/8422 cut-off events. For 5551/5551 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 56489 event pairs, 0 based on Foata normal form. 296/8718 useless extension candidates. Maximal degree in co-relation 9277. Up to 4159 conditions per place. [2022-01-19 03:13:09,093 INFO L132 encePairwiseOnDemand]: 79/94 looper letters, 257 selfloop transitions, 388 changer transitions 0/688 dead transitions. [2022-01-19 03:13:09,093 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 688 transitions, 4008 flow [2022-01-19 03:13:09,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-01-19 03:13:09,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2022-01-19 03:13:09,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 6941 transitions. [2022-01-19 03:13:09,102 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6774350966230724 [2022-01-19 03:13:09,102 INFO L72 ComplementDD]: Start complementDD. Operand 109 states and 6941 transitions. [2022-01-19 03:13:09,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 6941 transitions. [2022-01-19 03:13:09,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:09,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 109 states and 6941 transitions. [2022-01-19 03:13:09,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 110 states, 109 states have (on average 63.678899082568805) internal successors, (6941), 109 states have internal predecessors, (6941), 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) [2022-01-19 03:13:09,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 110 states, 110 states have (on average 94.0) internal successors, (10340), 110 states have internal predecessors, (10340), 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) [2022-01-19 03:13:09,128 INFO L81 ComplementDD]: Finished complementDD. Result has 110 states, 110 states have (on average 94.0) internal successors, (10340), 110 states have internal predecessors, (10340), 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) [2022-01-19 03:13:09,128 INFO L186 Difference]: Start difference. First operand has 97 places, 82 transitions, 268 flow. Second operand 109 states and 6941 transitions. [2022-01-19 03:13:09,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 688 transitions, 4008 flow [2022-01-19 03:13:09,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 688 transitions, 3877 flow, removed 30 selfloop flow, removed 4 redundant places. [2022-01-19 03:13:09,145 INFO L242 Difference]: Finished difference. Result has 214 places, 447 transitions, 2639 flow [2022-01-19 03:13:09,145 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=109, PETRI_FLOW=2639, PETRI_PLACES=214, PETRI_TRANSITIONS=447} [2022-01-19 03:13:09,145 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 132 predicate places. [2022-01-19 03:13:09,145 INFO L470 AbstractCegarLoop]: Abstraction has has 214 places, 447 transitions, 2639 flow [2022-01-19 03:13:09,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 61.0) internal successors, (1281), 21 states have internal predecessors, (1281), 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) [2022-01-19 03:13:09,146 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:09,146 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:13:09,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-19 03:13:09,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:13:09,370 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:09,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:09,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2072494017, now seen corresponding path program 1 times [2022-01-19 03:13:09,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:09,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170486006] [2022-01-19 03:13:09,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:09,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 03:13:09,387 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 03:13:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 03:13:09,411 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 03:13:09,411 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 03:13:09,411 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-19 03:13:09,411 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-19 03:13:09,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-19 03:13:09,412 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-01-19 03:13:09,413 WARN L235 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 03:13:09,413 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2022-01-19 03:13:09,429 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,429 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,429 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,429 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,429 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,429 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,430 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,430 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,430 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,430 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,430 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,430 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,430 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,430 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,430 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,430 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,430 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,430 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,430 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,431 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,431 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,431 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,431 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,431 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,431 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,431 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,431 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,431 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,431 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,431 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,431 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,431 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,431 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,432 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,432 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,432 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,432 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,432 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,432 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,432 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,432 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,432 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,432 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,432 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,432 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,432 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,432 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,433 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,433 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,433 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,433 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,433 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,433 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,433 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,433 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,433 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,433 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,433 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,433 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,433 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,433 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,433 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,434 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,434 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,434 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,434 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,434 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,434 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,434 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,434 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,434 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,434 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,434 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,434 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,434 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,434 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,434 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,435 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,435 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,435 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,435 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,435 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,435 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,435 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,435 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,435 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,435 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,435 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,435 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,435 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,435 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,435 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,436 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,436 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,436 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,439 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,439 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,440 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,440 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,440 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,440 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,440 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,440 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,440 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,440 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,440 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,441 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,441 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,441 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,441 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,441 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,441 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,441 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,441 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,441 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,441 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,441 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,441 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,441 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,441 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,442 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,442 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,442 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,442 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,442 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,442 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,442 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,442 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,442 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,442 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,442 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,442 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,442 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,442 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,442 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,442 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,443 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,443 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,443 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,443 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,443 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,443 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,443 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,443 WARN L322 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,443 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,444 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,444 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,444 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,444 WARN L322 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,444 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,444 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,444 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,444 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,444 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,444 WARN L322 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,445 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,445 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,445 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,445 WARN L322 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,445 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,445 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,445 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,445 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,446 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,446 WARN L322 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,446 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,446 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,447 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,447 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,447 WARN L322 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,447 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,447 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,447 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,447 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,447 WARN L322 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:13:09,453 INFO L148 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2022-01-19 03:13:09,455 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 03:13:09,456 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 03:13:09,456 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 03:13:09,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 101 transitions, 300 flow [2022-01-19 03:13:09,636 INFO L129 PetriNetUnfolder]: 472/2430 cut-off events. [2022-01-19 03:13:09,636 INFO L130 PetriNetUnfolder]: For 525/525 co-relation queries the response was YES. [2022-01-19 03:13:09,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2928 conditions, 2430 events. 472/2430 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 16323 event pairs, 201 based on Foata normal form. 0/2142 useless extension candidates. Maximal degree in co-relation 1473. Up to 448 conditions per place. [2022-01-19 03:13:09,641 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 101 transitions, 300 flow [2022-01-19 03:13:09,643 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 76 transitions, 229 flow [2022-01-19 03:13:09,644 INFO L129 PetriNetUnfolder]: 1/26 cut-off events. [2022-01-19 03:13:09,645 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 03:13:09,645 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:09,645 INFO L254 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] [2022-01-19 03:13:09,645 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:09,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:09,645 INFO L85 PathProgramCache]: Analyzing trace with hash -196252411, now seen corresponding path program 1 times [2022-01-19 03:13:09,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:09,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728768839] [2022-01-19 03:13:09,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:09,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:09,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:09,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:09,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728768839] [2022-01-19 03:13:09,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728768839] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:13:09,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:13:09,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 03:13:09,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255062388] [2022-01-19 03:13:09,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:13:09,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 03:13:09,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:09,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 03:13:09,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 03:13:09,665 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 101 [2022-01-19 03:13:09,665 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 76 transitions, 229 flow. Second operand has 2 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 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) [2022-01-19 03:13:09,665 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:09,665 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 101 [2022-01-19 03:13:09,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:09,678 INFO L129 PetriNetUnfolder]: 0/154 cut-off events. [2022-01-19 03:13:09,678 INFO L130 PetriNetUnfolder]: For 105/105 co-relation queries the response was YES. [2022-01-19 03:13:09,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 154 events. 0/154 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 115 event pairs, 0 based on Foata normal form. 8/154 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2022-01-19 03:13:09,679 INFO L132 encePairwiseOnDemand]: 100/101 looper letters, 7 selfloop transitions, 0 changer transitions 0/75 dead transitions. [2022-01-19 03:13:09,679 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 75 transitions, 241 flow [2022-01-19 03:13:09,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 03:13:09,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 03:13:09,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 174 transitions. [2022-01-19 03:13:09,680 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8613861386138614 [2022-01-19 03:13:09,680 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 174 transitions. [2022-01-19 03:13:09,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 174 transitions. [2022-01-19 03:13:09,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:09,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 174 transitions. [2022-01-19 03:13:09,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 87.0) internal successors, (174), 2 states have internal predecessors, (174), 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) [2022-01-19 03:13:09,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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) [2022-01-19 03:13:09,681 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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) [2022-01-19 03:13:09,681 INFO L186 Difference]: Start difference. First operand has 90 places, 76 transitions, 229 flow. Second operand 2 states and 174 transitions. [2022-01-19 03:13:09,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 75 transitions, 241 flow [2022-01-19 03:13:09,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 75 transitions, 199 flow, removed 21 selfloop flow, removed 0 redundant places. [2022-01-19 03:13:09,682 INFO L242 Difference]: Finished difference. Result has 91 places, 75 transitions, 185 flow [2022-01-19 03:13:09,683 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=185, PETRI_PLACES=91, PETRI_TRANSITIONS=75} [2022-01-19 03:13:09,683 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 1 predicate places. [2022-01-19 03:13:09,683 INFO L470 AbstractCegarLoop]: Abstraction has has 91 places, 75 transitions, 185 flow [2022-01-19 03:13:09,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 83.5) internal successors, (167), 2 states have internal predecessors, (167), 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) [2022-01-19 03:13:09,683 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:09,684 INFO L254 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] [2022-01-19 03:13:09,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-19 03:13:09,684 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:09,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:09,684 INFO L85 PathProgramCache]: Analyzing trace with hash -196251450, now seen corresponding path program 1 times [2022-01-19 03:13:09,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:09,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686022991] [2022-01-19 03:13:09,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:09,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:09,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:09,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:09,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686022991] [2022-01-19 03:13:09,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686022991] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:13:09,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:13:09,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:13:09,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575456202] [2022-01-19 03:13:09,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:13:09,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:13:09,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:09,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:13:09,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:13:09,698 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 101 [2022-01-19 03:13:09,698 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 75 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2022-01-19 03:13:09,698 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:09,698 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 101 [2022-01-19 03:13:09,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:09,721 INFO L129 PetriNetUnfolder]: 0/151 cut-off events. [2022-01-19 03:13:09,721 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-01-19 03:13:09,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 151 events. 0/151 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 117 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 0. Up to 42 conditions per place. [2022-01-19 03:13:09,721 INFO L132 encePairwiseOnDemand]: 98/101 looper letters, 16 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2022-01-19 03:13:09,722 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 79 transitions, 229 flow [2022-01-19 03:13:09,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:13:09,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:13:09,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2022-01-19 03:13:09,722 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8151815181518152 [2022-01-19 03:13:09,722 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 247 transitions. [2022-01-19 03:13:09,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 247 transitions. [2022-01-19 03:13:09,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:09,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 247 transitions. [2022-01-19 03:13:09,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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) [2022-01-19 03:13:09,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2022-01-19 03:13:09,726 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2022-01-19 03:13:09,726 INFO L186 Difference]: Start difference. First operand has 91 places, 75 transitions, 185 flow. Second operand 3 states and 247 transitions. [2022-01-19 03:13:09,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 79 transitions, 229 flow [2022-01-19 03:13:09,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 79 transitions, 229 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 03:13:09,728 INFO L242 Difference]: Finished difference. Result has 94 places, 76 transitions, 197 flow [2022-01-19 03:13:09,728 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=197, PETRI_PLACES=94, PETRI_TRANSITIONS=76} [2022-01-19 03:13:09,728 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2022-01-19 03:13:09,728 INFO L470 AbstractCegarLoop]: Abstraction has has 94 places, 76 transitions, 197 flow [2022-01-19 03:13:09,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2022-01-19 03:13:09,728 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:09,728 INFO L254 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] [2022-01-19 03:13:09,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-19 03:13:09,729 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:09,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:09,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1335463192, now seen corresponding path program 1 times [2022-01-19 03:13:09,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:09,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472540996] [2022-01-19 03:13:09,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:09,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:09,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 03:13:09,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:09,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472540996] [2022-01-19 03:13:09,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472540996] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:13:09,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:13:09,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:13:09,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687999564] [2022-01-19 03:13:09,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:13:09,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:13:09,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:09,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:13:09,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:13:09,746 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 101 [2022-01-19 03:13:09,746 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 76 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2022-01-19 03:13:09,746 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:09,746 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 101 [2022-01-19 03:13:09,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:09,990 INFO L129 PetriNetUnfolder]: 1383/3169 cut-off events. [2022-01-19 03:13:09,991 INFO L130 PetriNetUnfolder]: For 380/380 co-relation queries the response was YES. [2022-01-19 03:13:10,000 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5512 conditions, 3169 events. 1383/3169 cut-off events. For 380/380 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 22276 event pairs, 924 based on Foata normal form. 7/3050 useless extension candidates. Maximal degree in co-relation 5500. Up to 1878 conditions per place. [2022-01-19 03:13:10,016 INFO L132 encePairwiseOnDemand]: 92/101 looper letters, 22 selfloop transitions, 8 changer transitions 0/89 dead transitions. [2022-01-19 03:13:10,016 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 89 transitions, 313 flow [2022-01-19 03:13:10,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:13:10,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:13:10,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2022-01-19 03:13:10,017 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8151815181518152 [2022-01-19 03:13:10,017 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 247 transitions. [2022-01-19 03:13:10,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 247 transitions. [2022-01-19 03:13:10,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:10,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 247 transitions. [2022-01-19 03:13:10,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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) [2022-01-19 03:13:10,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2022-01-19 03:13:10,018 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2022-01-19 03:13:10,018 INFO L186 Difference]: Start difference. First operand has 94 places, 76 transitions, 197 flow. Second operand 3 states and 247 transitions. [2022-01-19 03:13:10,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 89 transitions, 313 flow [2022-01-19 03:13:10,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 89 transitions, 311 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 03:13:10,020 INFO L242 Difference]: Finished difference. Result has 96 places, 83 transitions, 249 flow [2022-01-19 03:13:10,021 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=249, PETRI_PLACES=96, PETRI_TRANSITIONS=83} [2022-01-19 03:13:10,021 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 6 predicate places. [2022-01-19 03:13:10,021 INFO L470 AbstractCegarLoop]: Abstraction has has 96 places, 83 transitions, 249 flow [2022-01-19 03:13:10,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2022-01-19 03:13:10,021 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:10,021 INFO L254 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] [2022-01-19 03:13:10,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-19 03:13:10,022 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:10,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:10,022 INFO L85 PathProgramCache]: Analyzing trace with hash -446134130, now seen corresponding path program 1 times [2022-01-19 03:13:10,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:10,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424939294] [2022-01-19 03:13:10,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:10,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:10,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:10,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:10,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424939294] [2022-01-19 03:13:10,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424939294] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:13:10,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981615305] [2022-01-19 03:13:10,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:10,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:13:10,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:13:10,048 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 03:13:10,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-19 03:13:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:10,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-19 03:13:10,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:13:10,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:10,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:13:10,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:10,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981615305] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:13:10,265 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:13:10,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-19 03:13:10,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296005358] [2022-01-19 03:13:10,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:13:10,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 03:13:10,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:10,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 03:13:10,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-19 03:13:10,267 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 101 [2022-01-19 03:13:10,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 83 transitions, 249 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2022-01-19 03:13:10,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:10,267 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 101 [2022-01-19 03:13:10,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:10,484 INFO L129 PetriNetUnfolder]: 1060/2259 cut-off events. [2022-01-19 03:13:10,484 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-01-19 03:13:10,490 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3795 conditions, 2259 events. 1060/2259 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 14831 event pairs, 722 based on Foata normal form. 2/2045 useless extension candidates. Maximal degree in co-relation 3782. Up to 1431 conditions per place. [2022-01-19 03:13:10,497 INFO L132 encePairwiseOnDemand]: 95/101 looper letters, 17 selfloop transitions, 9 changer transitions 0/93 dead transitions. [2022-01-19 03:13:10,497 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 93 transitions, 323 flow [2022-01-19 03:13:10,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 03:13:10,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 03:13:10,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 703 transitions. [2022-01-19 03:13:10,499 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7733773377337734 [2022-01-19 03:13:10,499 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 703 transitions. [2022-01-19 03:13:10,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 703 transitions. [2022-01-19 03:13:10,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:10,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 703 transitions. [2022-01-19 03:13:10,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 78.11111111111111) internal successors, (703), 9 states have internal predecessors, (703), 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) [2022-01-19 03:13:10,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 101.0) internal successors, (1010), 10 states have internal predecessors, (1010), 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) [2022-01-19 03:13:10,502 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 101.0) internal successors, (1010), 10 states have internal predecessors, (1010), 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) [2022-01-19 03:13:10,502 INFO L186 Difference]: Start difference. First operand has 96 places, 83 transitions, 249 flow. Second operand 9 states and 703 transitions. [2022-01-19 03:13:10,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 93 transitions, 323 flow [2022-01-19 03:13:10,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 93 transitions, 315 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 03:13:10,504 INFO L242 Difference]: Finished difference. Result has 106 places, 89 transitions, 291 flow [2022-01-19 03:13:10,504 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=291, PETRI_PLACES=106, PETRI_TRANSITIONS=89} [2022-01-19 03:13:10,504 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 16 predicate places. [2022-01-19 03:13:10,505 INFO L470 AbstractCegarLoop]: Abstraction has has 106 places, 89 transitions, 291 flow [2022-01-19 03:13:10,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 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) [2022-01-19 03:13:10,505 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:10,505 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:13:10,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-19 03:13:10,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-01-19 03:13:10,719 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:10,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:10,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1229042553, now seen corresponding path program 1 times [2022-01-19 03:13:10,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:10,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010193618] [2022-01-19 03:13:10,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:10,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:10,773 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-19 03:13:10,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:10,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010193618] [2022-01-19 03:13:10,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010193618] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:13:10,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361024186] [2022-01-19 03:13:10,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:10,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:13:10,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:13:10,775 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 03:13:10,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-19 03:13:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:10,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 03:13:10,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:13:10,953 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-19 03:13:10,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:13:11,048 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-19 03:13:11,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361024186] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:13:11,048 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:13:11,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-01-19 03:13:11,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017295594] [2022-01-19 03:13:11,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:13:11,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-19 03:13:11,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:11,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-19 03:13:11,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-01-19 03:13:11,050 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 101 [2022-01-19 03:13:11,051 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 89 transitions, 291 flow. Second operand has 15 states, 15 states have (on average 65.6) internal successors, (984), 15 states have internal predecessors, (984), 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) [2022-01-19 03:13:11,051 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:11,051 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 101 [2022-01-19 03:13:11,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:13,136 INFO L129 PetriNetUnfolder]: 13197/24216 cut-off events. [2022-01-19 03:13:13,136 INFO L130 PetriNetUnfolder]: For 13012/13148 co-relation queries the response was YES. [2022-01-19 03:13:13,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61219 conditions, 24216 events. 13197/24216 cut-off events. For 13012/13148 co-relation queries the response was YES. Maximal size of possible extension queue 833. Compared 194366 event pairs, 2292 based on Foata normal form. 125/24341 useless extension candidates. Maximal degree in co-relation 61204. Up to 12355 conditions per place. [2022-01-19 03:13:13,449 INFO L132 encePairwiseOnDemand]: 86/101 looper letters, 106 selfloop transitions, 90 changer transitions 0/247 dead transitions. [2022-01-19 03:13:13,449 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 247 transitions, 1437 flow [2022-01-19 03:13:13,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-19 03:13:13,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-01-19 03:13:13,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1364 transitions. [2022-01-19 03:13:13,452 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7107868681605003 [2022-01-19 03:13:13,452 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1364 transitions. [2022-01-19 03:13:13,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1364 transitions. [2022-01-19 03:13:13,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:13,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1364 transitions. [2022-01-19 03:13:13,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 71.78947368421052) internal successors, (1364), 19 states have internal predecessors, (1364), 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) [2022-01-19 03:13:13,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 101.0) internal successors, (2020), 20 states have internal predecessors, (2020), 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) [2022-01-19 03:13:13,457 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 101.0) internal successors, (2020), 20 states have internal predecessors, (2020), 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) [2022-01-19 03:13:13,457 INFO L186 Difference]: Start difference. First operand has 106 places, 89 transitions, 291 flow. Second operand 19 states and 1364 transitions. [2022-01-19 03:13:13,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 247 transitions, 1437 flow [2022-01-19 03:13:13,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 247 transitions, 1409 flow, removed 12 selfloop flow, removed 1 redundant places. [2022-01-19 03:13:13,491 INFO L242 Difference]: Finished difference. Result has 125 places, 163 transitions, 832 flow [2022-01-19 03:13:13,491 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=832, PETRI_PLACES=125, PETRI_TRANSITIONS=163} [2022-01-19 03:13:13,491 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 35 predicate places. [2022-01-19 03:13:13,491 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 163 transitions, 832 flow [2022-01-19 03:13:13,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 65.6) internal successors, (984), 15 states have internal predecessors, (984), 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) [2022-01-19 03:13:13,492 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:13,492 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:13:13,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-01-19 03:13:13,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-01-19 03:13:13,714 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:13,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:13,715 INFO L85 PathProgramCache]: Analyzing trace with hash -329000904, now seen corresponding path program 1 times [2022-01-19 03:13:13,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:13,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972798676] [2022-01-19 03:13:13,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:13,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:13,774 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:13:13,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:13,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972798676] [2022-01-19 03:13:13,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972798676] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:13:13,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324217513] [2022-01-19 03:13:13,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:13,775 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:13:13,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:13:13,776 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 03:13:13,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-19 03:13:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:13,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 03:13:13,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:13:13,993 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 03:13:13,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:13:14,117 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-19 03:13:14,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324217513] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:13:14,117 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:13:14,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2022-01-19 03:13:14,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776394422] [2022-01-19 03:13:14,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:13:14,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-19 03:13:14,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:14,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-19 03:13:14,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2022-01-19 03:13:14,120 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 101 [2022-01-19 03:13:14,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 163 transitions, 832 flow. Second operand has 22 states, 22 states have (on average 65.18181818181819) internal successors, (1434), 22 states have internal predecessors, (1434), 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) [2022-01-19 03:13:14,121 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:14,121 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 101 [2022-01-19 03:13:14,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:21,096 INFO L129 PetriNetUnfolder]: 33114/56771 cut-off events. [2022-01-19 03:13:21,097 INFO L130 PetriNetUnfolder]: For 112010/112014 co-relation queries the response was YES. [2022-01-19 03:13:21,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203632 conditions, 56771 events. 33114/56771 cut-off events. For 112010/112014 co-relation queries the response was YES. Maximal size of possible extension queue 1839. Compared 485208 event pairs, 3235 based on Foata normal form. 356/57127 useless extension candidates. Maximal degree in co-relation 203614. Up to 29173 conditions per place. [2022-01-19 03:13:21,877 INFO L132 encePairwiseOnDemand]: 83/101 looper letters, 329 selfloop transitions, 493 changer transitions 0/878 dead transitions. [2022-01-19 03:13:21,877 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 878 transitions, 7075 flow [2022-01-19 03:13:21,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-01-19 03:13:21,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2022-01-19 03:13:21,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 5200 transitions. [2022-01-19 03:13:21,884 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6686382924006686 [2022-01-19 03:13:21,884 INFO L72 ComplementDD]: Start complementDD. Operand 77 states and 5200 transitions. [2022-01-19 03:13:21,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 5200 transitions. [2022-01-19 03:13:21,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:21,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 77 states and 5200 transitions. [2022-01-19 03:13:21,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 78 states, 77 states have (on average 67.53246753246754) internal successors, (5200), 77 states have internal predecessors, (5200), 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) [2022-01-19 03:13:21,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 78 states, 78 states have (on average 101.0) internal successors, (7878), 78 states have internal predecessors, (7878), 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) [2022-01-19 03:13:21,900 INFO L81 ComplementDD]: Finished complementDD. Result has 78 states, 78 states have (on average 101.0) internal successors, (7878), 78 states have internal predecessors, (7878), 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) [2022-01-19 03:13:21,900 INFO L186 Difference]: Start difference. First operand has 125 places, 163 transitions, 832 flow. Second operand 77 states and 5200 transitions. [2022-01-19 03:13:21,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 878 transitions, 7075 flow [2022-01-19 03:13:22,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 878 transitions, 7053 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-01-19 03:13:22,159 INFO L242 Difference]: Finished difference. Result has 222 places, 608 transitions, 5270 flow [2022-01-19 03:13:22,159 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=77, PETRI_FLOW=5270, PETRI_PLACES=222, PETRI_TRANSITIONS=608} [2022-01-19 03:13:22,159 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 132 predicate places. [2022-01-19 03:13:22,160 INFO L470 AbstractCegarLoop]: Abstraction has has 222 places, 608 transitions, 5270 flow [2022-01-19 03:13:22,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 65.18181818181819) internal successors, (1434), 22 states have internal predecessors, (1434), 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) [2022-01-19 03:13:22,160 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:22,160 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:13:22,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-01-19 03:13:22,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-01-19 03:13:22,374 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:22,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:22,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1661907186, now seen corresponding path program 1 times [2022-01-19 03:13:22,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:22,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291226938] [2022-01-19 03:13:22,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:22,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:22,494 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-19 03:13:22,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:22,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291226938] [2022-01-19 03:13:22,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291226938] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:13:22,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948576249] [2022-01-19 03:13:22,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:22,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:13:22,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:13:22,497 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 03:13:22,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-01-19 03:13:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:22,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-19 03:13:22,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:13:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-19 03:13:22,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:13:22,963 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-19 03:13:22,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948576249] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:13:22,963 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:13:22,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-01-19 03:13:22,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915251985] [2022-01-19 03:13:22,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:13:22,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-19 03:13:22,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:22,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-19 03:13:22,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2022-01-19 03:13:22,966 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 101 [2022-01-19 03:13:22,967 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 608 transitions, 5270 flow. Second operand has 24 states, 24 states have (on average 65.20833333333333) internal successors, (1565), 24 states have internal predecessors, (1565), 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) [2022-01-19 03:13:22,967 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:22,967 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 101 [2022-01-19 03:13:22,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:13:44,052 INFO L129 PetriNetUnfolder]: 71642/126978 cut-off events. [2022-01-19 03:13:44,052 INFO L130 PetriNetUnfolder]: For 1086474/1086524 co-relation queries the response was YES. [2022-01-19 03:13:45,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 654980 conditions, 126978 events. 71642/126978 cut-off events. For 1086474/1086524 co-relation queries the response was YES. Maximal size of possible extension queue 4286. Compared 1255235 event pairs, 4647 based on Foata normal form. 466/127440 useless extension candidates. Maximal degree in co-relation 654937. Up to 58289 conditions per place. [2022-01-19 03:13:46,872 INFO L132 encePairwiseOnDemand]: 84/101 looper letters, 449 selfloop transitions, 1035 changer transitions 0/1582 dead transitions. [2022-01-19 03:13:46,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 1582 transitions, 17886 flow [2022-01-19 03:13:46,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-19 03:13:46,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2022-01-19 03:13:46,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 4408 transitions. [2022-01-19 03:13:46,877 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6714394516374714 [2022-01-19 03:13:46,877 INFO L72 ComplementDD]: Start complementDD. Operand 65 states and 4408 transitions. [2022-01-19 03:13:46,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 4408 transitions. [2022-01-19 03:13:46,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:13:46,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 65 states and 4408 transitions. [2022-01-19 03:13:46,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 66 states, 65 states have (on average 67.81538461538462) internal successors, (4408), 65 states have internal predecessors, (4408), 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) [2022-01-19 03:13:46,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 66 states, 66 states have (on average 101.0) internal successors, (6666), 66 states have internal predecessors, (6666), 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) [2022-01-19 03:13:46,891 INFO L81 ComplementDD]: Finished complementDD. Result has 66 states, 66 states have (on average 101.0) internal successors, (6666), 66 states have internal predecessors, (6666), 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) [2022-01-19 03:13:46,891 INFO L186 Difference]: Start difference. First operand has 222 places, 608 transitions, 5270 flow. Second operand 65 states and 4408 transitions. [2022-01-19 03:13:46,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 1582 transitions, 17886 flow [2022-01-19 03:13:55,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 1582 transitions, 17492 flow, removed 126 selfloop flow, removed 12 redundant places. [2022-01-19 03:13:55,917 INFO L242 Difference]: Finished difference. Result has 282 places, 1318 transitions, 14186 flow [2022-01-19 03:13:55,918 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=5047, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=325, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=65, PETRI_FLOW=14186, PETRI_PLACES=282, PETRI_TRANSITIONS=1318} [2022-01-19 03:13:55,918 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 192 predicate places. [2022-01-19 03:13:55,918 INFO L470 AbstractCegarLoop]: Abstraction has has 282 places, 1318 transitions, 14186 flow [2022-01-19 03:13:55,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 65.20833333333333) internal successors, (1565), 24 states have internal predecessors, (1565), 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) [2022-01-19 03:13:55,918 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:13:55,919 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:13:55,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-01-19 03:13:56,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:13:56,119 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:13:56,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:13:56,120 INFO L85 PathProgramCache]: Analyzing trace with hash -431640834, now seen corresponding path program 1 times [2022-01-19 03:13:56,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:13:56,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254168797] [2022-01-19 03:13:56,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:56,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:13:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 03:13:56,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:13:56,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254168797] [2022-01-19 03:13:56,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254168797] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:13:56,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930195439] [2022-01-19 03:13:56,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:13:56,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:13:56,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:13:56,220 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 03:13:56,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-01-19 03:13:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:13:56,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-19 03:13:56,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:13:56,503 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 03:13:56,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:13:56,741 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 03:13:56,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930195439] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:13:56,742 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:13:56,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 28 [2022-01-19 03:13:56,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916607625] [2022-01-19 03:13:56,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:13:56,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-19 03:13:56,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:13:56,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-19 03:13:56,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756 [2022-01-19 03:13:56,744 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 101 [2022-01-19 03:13:56,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 1318 transitions, 14186 flow. Second operand has 28 states, 28 states have (on average 65.10714285714286) internal successors, (1823), 28 states have internal predecessors, (1823), 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) [2022-01-19 03:13:56,745 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:13:56,745 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 101 [2022-01-19 03:13:56,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:14:47,126 INFO L129 PetriNetUnfolder]: 141331/239372 cut-off events. [2022-01-19 03:14:47,126 INFO L130 PetriNetUnfolder]: For 3600202/3600607 co-relation queries the response was YES. [2022-01-19 03:14:51,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1350676 conditions, 239372 events. 141331/239372 cut-off events. For 3600202/3600607 co-relation queries the response was YES. Maximal size of possible extension queue 8016. Compared 2405998 event pairs, 2778 based on Foata normal form. 3387/242737 useless extension candidates. Maximal degree in co-relation 1350626. Up to 101639 conditions per place. [2022-01-19 03:14:53,626 INFO L132 encePairwiseOnDemand]: 83/101 looper letters, 1638 selfloop transitions, 4539 changer transitions 0/6305 dead transitions. [2022-01-19 03:14:53,626 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 6305 transitions, 89582 flow [2022-01-19 03:14:53,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-01-19 03:14:53,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2022-01-19 03:14:53,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 6108 transitions. [2022-01-19 03:14:53,631 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.679497163199466 [2022-01-19 03:14:53,631 INFO L72 ComplementDD]: Start complementDD. Operand 89 states and 6108 transitions. [2022-01-19 03:14:53,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 6108 transitions. [2022-01-19 03:14:53,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:14:53,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 89 states and 6108 transitions. [2022-01-19 03:14:53,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 90 states, 89 states have (on average 68.62921348314607) internal successors, (6108), 89 states have internal predecessors, (6108), 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) [2022-01-19 03:14:53,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 90 states, 90 states have (on average 101.0) internal successors, (9090), 90 states have internal predecessors, (9090), 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) [2022-01-19 03:14:53,648 INFO L81 ComplementDD]: Finished complementDD. Result has 90 states, 90 states have (on average 101.0) internal successors, (9090), 90 states have internal predecessors, (9090), 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) [2022-01-19 03:14:53,648 INFO L186 Difference]: Start difference. First operand has 282 places, 1318 transitions, 14186 flow. Second operand 89 states and 6108 transitions. [2022-01-19 03:14:53,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 6305 transitions, 89582 flow [2022-01-19 03:15:43,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 6305 transitions, 88764 flow, removed 370 selfloop flow, removed 12 redundant places. [2022-01-19 03:15:43,897 INFO L242 Difference]: Finished difference. Result has 384 places, 5075 transitions, 73994 flow [2022-01-19 03:15:43,898 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=13922, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=830, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=89, PETRI_FLOW=73994, PETRI_PLACES=384, PETRI_TRANSITIONS=5075} [2022-01-19 03:15:43,898 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 294 predicate places. [2022-01-19 03:15:43,898 INFO L470 AbstractCegarLoop]: Abstraction has has 384 places, 5075 transitions, 73994 flow [2022-01-19 03:15:43,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 65.10714285714286) internal successors, (1823), 28 states have internal predecessors, (1823), 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) [2022-01-19 03:15:43,899 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:15:43,899 INFO L254 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:15:43,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-01-19 03:15:44,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-01-19 03:15:44,115 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:15:44,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:15:44,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1827067087, now seen corresponding path program 1 times [2022-01-19 03:15:44,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:15:44,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993674188] [2022-01-19 03:15:44,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:15:44,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:15:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 03:15:44,146 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 03:15:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 03:15:44,165 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 03:15:44,166 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 03:15:44,166 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-01-19 03:15:44,166 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-19 03:15:44,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-19 03:15:44,166 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:15:44,167 WARN L235 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 03:15:44,167 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2022-01-19 03:15:44,179 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,179 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,179 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,179 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,179 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,179 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,179 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,180 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,180 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,180 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,180 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,180 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,180 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,180 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,180 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,180 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,180 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,180 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,180 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,180 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,180 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,180 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,181 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,182 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,182 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,182 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,182 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,182 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,182 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,182 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,182 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,182 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,182 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,182 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,182 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,182 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,182 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,182 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,182 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,183 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,183 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,183 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,183 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,183 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,183 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,183 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,183 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,183 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,183 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,183 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,183 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,183 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,183 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,183 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,184 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,184 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,184 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,184 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,184 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,184 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,184 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,184 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,184 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,184 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,184 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,184 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,184 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,185 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,185 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,185 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,185 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,185 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,185 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,185 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,185 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,185 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,185 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,185 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,185 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,185 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,185 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,185 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,186 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,186 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,186 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,186 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,186 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,186 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,186 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,186 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,186 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,186 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,186 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,186 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,186 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,186 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,186 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,186 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,187 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,187 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,187 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,187 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,187 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,187 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,188 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,188 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,188 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,188 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,188 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,188 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,188 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,188 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,188 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,188 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,188 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,188 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,188 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,188 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,189 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,189 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,189 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,189 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,189 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,189 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,189 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,189 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,189 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,189 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,190 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,190 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,190 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,190 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,190 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,190 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,190 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,190 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,190 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,190 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,190 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,190 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,190 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,190 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,190 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,191 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,191 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,191 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,191 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,191 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,191 WARN L322 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,191 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,192 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,192 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,192 WARN L322 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,192 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,192 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,192 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,192 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,192 WARN L322 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,192 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,193 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,193 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,193 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,193 WARN L322 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,193 WARN L322 ript$VariableManager]: TermVariabe |threadThread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,193 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,193 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,193 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,193 WARN L322 ript$VariableManager]: TermVariabe |threadThread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,193 WARN L322 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,194 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,194 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,194 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,194 WARN L322 ript$VariableManager]: TermVariabe |threadThread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,194 WARN L322 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,194 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,194 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,194 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,194 WARN L322 ript$VariableManager]: TermVariabe |threadThread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,194 WARN L322 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,195 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,195 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,195 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~thread~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,195 WARN L322 ript$VariableManager]: TermVariabe |threadThread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,195 WARN L322 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 03:15:44,197 INFO L148 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-01-19 03:15:44,199 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 03:15:44,199 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 03:15:44,199 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 03:15:44,200 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 108 transitions, 336 flow [2022-01-19 03:15:44,517 INFO L129 PetriNetUnfolder]: 1051/4821 cut-off events. [2022-01-19 03:15:44,517 INFO L130 PetriNetUnfolder]: For 1136/1136 co-relation queries the response was YES. [2022-01-19 03:15:44,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5906 conditions, 4821 events. 1051/4821 cut-off events. For 1136/1136 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 39353 event pairs, 522 based on Foata normal form. 0/4273 useless extension candidates. Maximal degree in co-relation 2913. Up to 1024 conditions per place. [2022-01-19 03:15:44,537 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 108 transitions, 336 flow [2022-01-19 03:15:44,539 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 82 transitions, 260 flow [2022-01-19 03:15:44,540 INFO L129 PetriNetUnfolder]: 1/26 cut-off events. [2022-01-19 03:15:44,540 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 03:15:44,540 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:15:44,541 INFO L254 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] [2022-01-19 03:15:44,541 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:15:44,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:15:44,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1280510193, now seen corresponding path program 1 times [2022-01-19 03:15:44,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:15:44,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061207696] [2022-01-19 03:15:44,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:15:44,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:15:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:15:44,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:15:44,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:15:44,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061207696] [2022-01-19 03:15:44,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061207696] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:15:44,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:15:44,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 03:15:44,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220334114] [2022-01-19 03:15:44,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:15:44,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 03:15:44,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:15:44,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 03:15:44,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 03:15:44,553 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2022-01-19 03:15:44,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 82 transitions, 260 flow. Second operand has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 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) [2022-01-19 03:15:44,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:15:44,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2022-01-19 03:15:44,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:15:44,568 INFO L129 PetriNetUnfolder]: 0/172 cut-off events. [2022-01-19 03:15:44,568 INFO L130 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2022-01-19 03:15:44,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 172 events. 0/172 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 140 event pairs, 0 based on Foata normal form. 9/172 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2022-01-19 03:15:44,569 INFO L132 encePairwiseOnDemand]: 107/108 looper letters, 8 selfloop transitions, 0 changer transitions 0/81 dead transitions. [2022-01-19 03:15:44,569 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 81 transitions, 274 flow [2022-01-19 03:15:44,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 03:15:44,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 03:15:44,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 185 transitions. [2022-01-19 03:15:44,569 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8564814814814815 [2022-01-19 03:15:44,569 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 185 transitions. [2022-01-19 03:15:44,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 185 transitions. [2022-01-19 03:15:44,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:15:44,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 185 transitions. [2022-01-19 03:15:44,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 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) [2022-01-19 03:15:44,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2022-01-19 03:15:44,570 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2022-01-19 03:15:44,570 INFO L186 Difference]: Start difference. First operand has 98 places, 82 transitions, 260 flow. Second operand 2 states and 185 transitions. [2022-01-19 03:15:44,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 81 transitions, 274 flow [2022-01-19 03:15:44,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 81 transitions, 218 flow, removed 28 selfloop flow, removed 0 redundant places. [2022-01-19 03:15:44,572 INFO L242 Difference]: Finished difference. Result has 99 places, 81 transitions, 202 flow [2022-01-19 03:15:44,572 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=202, PETRI_PLACES=99, PETRI_TRANSITIONS=81} [2022-01-19 03:15:44,573 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 1 predicate places. [2022-01-19 03:15:44,573 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 81 transitions, 202 flow [2022-01-19 03:15:44,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 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) [2022-01-19 03:15:44,573 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:15:44,573 INFO L254 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] [2022-01-19 03:15:44,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-19 03:15:44,573 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:15:44,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:15:44,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1280511154, now seen corresponding path program 1 times [2022-01-19 03:15:44,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:15:44,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29683405] [2022-01-19 03:15:44,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:15:44,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:15:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:15:44,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:15:44,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:15:44,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29683405] [2022-01-19 03:15:44,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29683405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:15:44,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:15:44,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:15:44,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99732330] [2022-01-19 03:15:44,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:15:44,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:15:44,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:15:44,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:15:44,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:15:44,589 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 108 [2022-01-19 03:15:44,589 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 81 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2022-01-19 03:15:44,590 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:15:44,590 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 108 [2022-01-19 03:15:44,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:15:44,617 INFO L129 PetriNetUnfolder]: 0/169 cut-off events. [2022-01-19 03:15:44,617 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-19 03:15:44,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 169 events. 0/169 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 134 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 0. Up to 48 conditions per place. [2022-01-19 03:15:44,617 INFO L132 encePairwiseOnDemand]: 105/108 looper letters, 17 selfloop transitions, 2 changer transitions 0/85 dead transitions. [2022-01-19 03:15:44,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 85 transitions, 248 flow [2022-01-19 03:15:44,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:15:44,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:15:44,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2022-01-19 03:15:44,618 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8117283950617284 [2022-01-19 03:15:44,618 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 263 transitions. [2022-01-19 03:15:44,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 263 transitions. [2022-01-19 03:15:44,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:15:44,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 263 transitions. [2022-01-19 03:15:44,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2022-01-19 03:15:44,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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) [2022-01-19 03:15:44,619 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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) [2022-01-19 03:15:44,619 INFO L186 Difference]: Start difference. First operand has 99 places, 81 transitions, 202 flow. Second operand 3 states and 263 transitions. [2022-01-19 03:15:44,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 85 transitions, 248 flow [2022-01-19 03:15:44,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 85 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 03:15:44,621 INFO L242 Difference]: Finished difference. Result has 102 places, 82 transitions, 214 flow [2022-01-19 03:15:44,621 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=102, PETRI_TRANSITIONS=82} [2022-01-19 03:15:44,622 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 4 predicate places. [2022-01-19 03:15:44,622 INFO L470 AbstractCegarLoop]: Abstraction has has 102 places, 82 transitions, 214 flow [2022-01-19 03:15:44,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2022-01-19 03:15:44,622 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:15:44,622 INFO L254 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] [2022-01-19 03:15:44,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-19 03:15:44,622 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:15:44,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:15:44,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1527003559, now seen corresponding path program 1 times [2022-01-19 03:15:44,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:15:44,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791660263] [2022-01-19 03:15:44,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:15:44,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:15:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:15:44,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 03:15:44,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:15:44,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791660263] [2022-01-19 03:15:44,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791660263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 03:15:44,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 03:15:44,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 03:15:44,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642459351] [2022-01-19 03:15:44,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 03:15:44,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 03:15:44,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:15:44,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 03:15:44,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 03:15:44,641 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 108 [2022-01-19 03:15:44,641 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 82 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2022-01-19 03:15:44,641 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:15:44,641 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 108 [2022-01-19 03:15:44,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:15:45,240 INFO L129 PetriNetUnfolder]: 3295/6400 cut-off events. [2022-01-19 03:15:45,240 INFO L130 PetriNetUnfolder]: For 764/764 co-relation queries the response was YES. [2022-01-19 03:15:45,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11505 conditions, 6400 events. 3295/6400 cut-off events. For 764/764 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 47249 event pairs, 2116 based on Foata normal form. 8/6275 useless extension candidates. Maximal degree in co-relation 11492. Up to 4300 conditions per place. [2022-01-19 03:15:45,316 INFO L132 encePairwiseOnDemand]: 98/108 looper letters, 25 selfloop transitions, 9 changer transitions 0/97 dead transitions. [2022-01-19 03:15:45,317 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 97 transitions, 347 flow [2022-01-19 03:15:45,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 03:15:45,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 03:15:45,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2022-01-19 03:15:45,318 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8117283950617284 [2022-01-19 03:15:45,318 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 263 transitions. [2022-01-19 03:15:45,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 263 transitions. [2022-01-19 03:15:45,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:15:45,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 263 transitions. [2022-01-19 03:15:45,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2022-01-19 03:15:45,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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) [2022-01-19 03:15:45,319 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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) [2022-01-19 03:15:45,319 INFO L186 Difference]: Start difference. First operand has 102 places, 82 transitions, 214 flow. Second operand 3 states and 263 transitions. [2022-01-19 03:15:45,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 97 transitions, 347 flow [2022-01-19 03:15:45,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 97 transitions, 345 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 03:15:45,321 INFO L242 Difference]: Finished difference. Result has 104 places, 90 transitions, 273 flow [2022-01-19 03:15:45,321 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=104, PETRI_TRANSITIONS=90} [2022-01-19 03:15:45,321 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 6 predicate places. [2022-01-19 03:15:45,322 INFO L470 AbstractCegarLoop]: Abstraction has has 104 places, 90 transitions, 273 flow [2022-01-19 03:15:45,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2022-01-19 03:15:45,322 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:15:45,322 INFO L254 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] [2022-01-19 03:15:45,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-19 03:15:45,322 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:15:45,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:15:45,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1185033266, now seen corresponding path program 1 times [2022-01-19 03:15:45,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:15:45,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666096822] [2022-01-19 03:15:45,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:15:45,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:15:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:15:45,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:15:45,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:15:45,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666096822] [2022-01-19 03:15:45,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666096822] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:15:45,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233757131] [2022-01-19 03:15:45,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:15:45,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:15:45,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:15:45,348 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 03:15:45,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-01-19 03:15:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:15:45,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-19 03:15:45,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:15:45,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:15:45,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:15:45,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:15:45,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233757131] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:15:45,592 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:15:45,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2022-01-19 03:15:45,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107040991] [2022-01-19 03:15:45,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:15:45,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-19 03:15:45,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:15:45,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-19 03:15:45,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-01-19 03:15:45,594 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 108 [2022-01-19 03:15:45,595 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 90 transitions, 273 flow. Second operand has 15 states, 15 states have (on average 68.6) internal successors, (1029), 15 states have internal predecessors, (1029), 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) [2022-01-19 03:15:45,595 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:15:45,595 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 108 [2022-01-19 03:15:45,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 03:15:50,344 INFO L129 PetriNetUnfolder]: 35632/60814 cut-off events. [2022-01-19 03:15:50,345 INFO L130 PetriNetUnfolder]: For 14358/14358 co-relation queries the response was YES. [2022-01-19 03:15:50,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145298 conditions, 60814 events. 35632/60814 cut-off events. For 14358/14358 co-relation queries the response was YES. Maximal size of possible extension queue 1791. Compared 508717 event pairs, 9367 based on Foata normal form. 258/61072 useless extension candidates. Maximal degree in co-relation 145284. Up to 33444 conditions per place. [2022-01-19 03:15:51,208 INFO L132 encePairwiseOnDemand]: 89/108 looper letters, 130 selfloop transitions, 111 changer transitions 0/293 dead transitions. [2022-01-19 03:15:51,208 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 293 transitions, 1594 flow [2022-01-19 03:15:51,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-19 03:15:51,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-01-19 03:15:51,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2276 transitions. [2022-01-19 03:15:51,211 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6798088410991637 [2022-01-19 03:15:51,211 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 2276 transitions. [2022-01-19 03:15:51,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 2276 transitions. [2022-01-19 03:15:51,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 03:15:51,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 2276 transitions. [2022-01-19 03:15:51,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 73.41935483870968) internal successors, (2276), 31 states have internal predecessors, (2276), 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) [2022-01-19 03:15:51,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 108.0) internal successors, (3456), 32 states have internal predecessors, (3456), 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) [2022-01-19 03:15:51,217 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 108.0) internal successors, (3456), 32 states have internal predecessors, (3456), 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) [2022-01-19 03:15:51,217 INFO L186 Difference]: Start difference. First operand has 104 places, 90 transitions, 273 flow. Second operand 31 states and 2276 transitions. [2022-01-19 03:15:51,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 293 transitions, 1594 flow [2022-01-19 03:15:51,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 293 transitions, 1542 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 03:15:51,225 INFO L242 Difference]: Finished difference. Result has 144 places, 189 transitions, 948 flow [2022-01-19 03:15:51,225 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=948, PETRI_PLACES=144, PETRI_TRANSITIONS=189} [2022-01-19 03:15:51,225 INFO L334 CegarLoopForPetriNet]: 98 programPoint places, 46 predicate places. [2022-01-19 03:15:51,225 INFO L470 AbstractCegarLoop]: Abstraction has has 144 places, 189 transitions, 948 flow [2022-01-19 03:15:51,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 68.6) internal successors, (1029), 15 states have internal predecessors, (1029), 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) [2022-01-19 03:15:51,226 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 03:15:51,226 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 03:15:51,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-01-19 03:15:51,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-01-19 03:15:51,436 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 03:15:51,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 03:15:51,437 INFO L85 PathProgramCache]: Analyzing trace with hash -828477540, now seen corresponding path program 1 times [2022-01-19 03:15:51,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 03:15:51,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093855319] [2022-01-19 03:15:51,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:15:51,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 03:15:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:15:51,479 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:15:51,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 03:15:51,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093855319] [2022-01-19 03:15:51,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093855319] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 03:15:51,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497450487] [2022-01-19 03:15:51,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 03:15:51,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 03:15:51,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 03:15:51,481 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 03:15:51,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-01-19 03:15:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 03:15:51,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-19 03:15:51,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 03:15:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:15:51,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 03:15:51,841 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 03:15:51,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497450487] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 03:15:51,842 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 03:15:51,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2022-01-19 03:15:51,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791172036] [2022-01-19 03:15:51,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 03:15:51,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-19 03:15:51,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 03:15:51,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-19 03:15:51,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2022-01-19 03:15:51,845 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 108 [2022-01-19 03:15:51,846 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 189 transitions, 948 flow. Second operand has 20 states, 20 states have (on average 68.7) internal successors, (1374), 20 states have internal predecessors, (1374), 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) [2022-01-19 03:15:51,846 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 03:15:51,846 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 108 [2022-01-19 03:15:51,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand