/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-After.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 13:32:08,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 13:32:08,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 13:32:08,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 13:32:08,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 13:32:08,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 13:32:08,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 13:32:08,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 13:32:08,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 13:32:08,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 13:32:08,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 13:32:08,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 13:32:08,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 13:32:08,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 13:32:08,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 13:32:08,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 13:32:08,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 13:32:08,471 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 13:32:08,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 13:32:08,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 13:32:08,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 13:32:08,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 13:32:08,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 13:32:08,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 13:32:08,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 13:32:08,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 13:32:08,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 13:32:08,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 13:32:08,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 13:32:08,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 13:32:08,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 13:32:08,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 13:32:08,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 13:32:08,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 13:32:08,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 13:32:08,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 13:32:08,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 13:32:08,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 13:32:08,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 13:32:08,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 13:32:08,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 13:32:08,520 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-After.epf [2022-01-19 13:32:08,545 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 13:32:08,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 13:32:08,547 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 13:32:08,547 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 13:32:08,547 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 13:32:08,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 13:32:08,548 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 13:32:08,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 13:32:08,548 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 13:32:08,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 13:32:08,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 13:32:08,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 13:32:08,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 13:32:08,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 13:32:08,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 13:32:08,549 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 13:32:08,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 13:32:08,550 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 13:32:08,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 13:32:08,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 13:32:08,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 13:32:08,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 13:32:08,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 13:32:08,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 13:32:08,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 13:32:08,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 13:32:08,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 13:32:08,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 13:32:08,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 13:32:08,552 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 13:32:08,552 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 13:32:08,552 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 13:32:08,553 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 13:32:08,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 13:32:08,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 13:32:08,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 13:32:08,796 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 13:32:08,797 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 13:32:08,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2022-01-19 13:32:08,852 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4e481d5/48b5d8ca26544704b1150e7a860dbfe1/FLAGdc6c2a82b [2022-01-19 13:32:09,237 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 13:32:09,238 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2022-01-19 13:32:09,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4e481d5/48b5d8ca26544704b1150e7a860dbfe1/FLAGdc6c2a82b [2022-01-19 13:32:09,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4e481d5/48b5d8ca26544704b1150e7a860dbfe1 [2022-01-19 13:32:09,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 13:32:09,264 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 13:32:09,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 13:32:09,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 13:32:09,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 13:32:09,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 01:32:09" (1/1) ... [2022-01-19 13:32:09,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f34a395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:32:09, skipping insertion in model container [2022-01-19 13:32:09,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 01:32:09" (1/1) ... [2022-01-19 13:32:09,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 13:32:09,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 13:32:09,457 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c[3134,3147] [2022-01-19 13:32:09,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 13:32:09,476 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 13:32:09,509 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c[3134,3147] [2022-01-19 13:32:09,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 13:32:09,525 INFO L208 MainTranslator]: Completed translation [2022-01-19 13:32:09,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:32:09 WrapperNode [2022-01-19 13:32:09,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 13:32:09,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 13:32:09,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 13:32:09,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 13:32:09,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:32:09" (1/1) ... [2022-01-19 13:32:09,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:32:09" (1/1) ... [2022-01-19 13:32:09,559 INFO L137 Inliner]: procedures = 21, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 119 [2022-01-19 13:32:09,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 13:32:09,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 13:32:09,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 13:32:09,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 13:32:09,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:32:09" (1/1) ... [2022-01-19 13:32:09,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:32:09" (1/1) ... [2022-01-19 13:32:09,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:32:09" (1/1) ... [2022-01-19 13:32:09,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:32:09" (1/1) ... [2022-01-19 13:32:09,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:32:09" (1/1) ... [2022-01-19 13:32:09,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:32:09" (1/1) ... [2022-01-19 13:32:09,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:32:09" (1/1) ... [2022-01-19 13:32:09,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 13:32:09,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 13:32:09,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 13:32:09,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 13:32:09,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:32:09" (1/1) ... [2022-01-19 13:32:09,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 13:32:09,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 13:32:09,606 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 13:32:09,623 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 13:32:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 13:32:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 13:32:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 13:32:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 13:32:09,647 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 13:32:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 13:32:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 13:32:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 13:32:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 13:32:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 13:32:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 13:32:09,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 13:32:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 13:32:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 13:32:09,651 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 13:32:09,735 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 13:32:09,737 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 13:32:09,908 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 13:32:09,959 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 13:32:09,959 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 13:32:09,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 01:32:09 BoogieIcfgContainer [2022-01-19 13:32:09,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 13:32:09,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 13:32:09,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 13:32:09,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 13:32:09,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 01:32:09" (1/3) ... [2022-01-19 13:32:09,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d85553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 01:32:09, skipping insertion in model container [2022-01-19 13:32:09,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:32:09" (2/3) ... [2022-01-19 13:32:09,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d85553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 01:32:09, skipping insertion in model container [2022-01-19 13:32:09,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 01:32:09" (3/3) ... [2022-01-19 13:32:09,988 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2022-01-19 13:32:09,992 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 13:32:09,992 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 13:32:09,992 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 13:32:10,048 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,049 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,050 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,050 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,050 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,050 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,050 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,051 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,051 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,051 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,051 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,051 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,052 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,052 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,053 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,054 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,054 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,054 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,054 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,055 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,055 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,055 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,055 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,056 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,057 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,059 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,060 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,060 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,061 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,061 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,061 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,061 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,062 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,062 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,062 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:32:10,065 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-19 13:32:10,105 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 13:32:10,110 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 13:32:10,111 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-19 13:32:10,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 137 places, 139 transitions, 294 flow [2022-01-19 13:32:10,178 INFO L129 PetriNetUnfolder]: 9/137 cut-off events. [2022-01-19 13:32:10,178 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 13:32:10,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 137 events. 9/137 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2022-01-19 13:32:10,181 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 139 transitions, 294 flow [2022-01-19 13:32:10,197 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 128 transitions, 268 flow [2022-01-19 13:32:10,253 INFO L129 PetriNetUnfolder]: 9/127 cut-off events. [2022-01-19 13:32:10,253 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 13:32:10,254 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:10,254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:32:10,255 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:32:10,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:10,259 INFO L85 PathProgramCache]: Analyzing trace with hash -832133839, now seen corresponding path program 1 times [2022-01-19 13:32:10,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:10,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006165581] [2022-01-19 13:32:10,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:10,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:10,760 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 13:32:10,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:10,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006165581] [2022-01-19 13:32:10,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006165581] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:10,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:10,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 13:32:10,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969160642] [2022-01-19 13:32:10,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:10,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 13:32:10,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:10,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 13:32:10,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-19 13:32:10,796 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 139 [2022-01-19 13:32:10,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 128 transitions, 268 flow. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 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 13:32:10,801 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:10,801 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 139 [2022-01-19 13:32:10,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:10,930 INFO L129 PetriNetUnfolder]: 26/216 cut-off events. [2022-01-19 13:32:10,931 INFO L130 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-01-19 13:32:10,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 216 events. 26/216 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 510 event pairs, 8 based on Foata normal form. 11/208 useless extension candidates. Maximal degree in co-relation 167. Up to 54 conditions per place. [2022-01-19 13:32:10,934 INFO L132 encePairwiseOnDemand]: 120/139 looper letters, 42 selfloop transitions, 7 changer transitions 7/129 dead transitions. [2022-01-19 13:32:10,934 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 129 transitions, 388 flow [2022-01-19 13:32:10,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 13:32:10,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 13:32:10,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 562 transitions. [2022-01-19 13:32:10,948 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6738609112709832 [2022-01-19 13:32:10,949 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 562 transitions. [2022-01-19 13:32:10,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 562 transitions. [2022-01-19 13:32:10,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:10,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 562 transitions. [2022-01-19 13:32:10,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.66666666666667) internal successors, (562), 6 states have internal predecessors, (562), 0 states have call successors, (0), 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 13:32:10,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 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 13:32:10,966 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 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 13:32:10,968 INFO L186 Difference]: Start difference. First operand has 126 places, 128 transitions, 268 flow. Second operand 6 states and 562 transitions. [2022-01-19 13:32:10,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 129 transitions, 388 flow [2022-01-19 13:32:10,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 129 transitions, 376 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 13:32:10,977 INFO L242 Difference]: Finished difference. Result has 128 places, 116 transitions, 261 flow [2022-01-19 13:32:10,979 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=261, PETRI_PLACES=128, PETRI_TRANSITIONS=116} [2022-01-19 13:32:10,982 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 2 predicate places. [2022-01-19 13:32:10,982 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 116 transitions, 261 flow [2022-01-19 13:32:10,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 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 13:32:10,984 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:10,985 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:32:10,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 13:32:10,985 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:32:10,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:10,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1917017462, now seen corresponding path program 1 times [2022-01-19 13:32:10,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:10,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965185550] [2022-01-19 13:32:10,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:10,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:11,298 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 13:32:11,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:11,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965185550] [2022-01-19 13:32:11,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965185550] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:11,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:11,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 13:32:11,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511370090] [2022-01-19 13:32:11,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:11,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 13:32:11,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:11,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 13:32:11,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-01-19 13:32:11,306 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 139 [2022-01-19 13:32:11,307 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 116 transitions, 261 flow. Second operand has 11 states, 11 states have (on average 82.0909090909091) internal successors, (903), 11 states have internal predecessors, (903), 0 states have call successors, (0), 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 13:32:11,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:11,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 139 [2022-01-19 13:32:11,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:11,565 INFO L129 PetriNetUnfolder]: 57/334 cut-off events. [2022-01-19 13:32:11,566 INFO L130 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-01-19 13:32:11,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 334 events. 57/334 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1307 event pairs, 29 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 270. Up to 87 conditions per place. [2022-01-19 13:32:11,571 INFO L132 encePairwiseOnDemand]: 127/139 looper letters, 61 selfloop transitions, 17 changer transitions 0/148 dead transitions. [2022-01-19 13:32:11,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 148 transitions, 489 flow [2022-01-19 13:32:11,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 13:32:11,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 13:32:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1016 transitions. [2022-01-19 13:32:11,575 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6091127098321343 [2022-01-19 13:32:11,575 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1016 transitions. [2022-01-19 13:32:11,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1016 transitions. [2022-01-19 13:32:11,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:11,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1016 transitions. [2022-01-19 13:32:11,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 84.66666666666667) internal successors, (1016), 12 states have internal predecessors, (1016), 0 states have call successors, (0), 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 13:32:11,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 139.0) internal successors, (1807), 13 states have internal predecessors, (1807), 0 states have call successors, (0), 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 13:32:11,582 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 139.0) internal successors, (1807), 13 states have internal predecessors, (1807), 0 states have call successors, (0), 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 13:32:11,582 INFO L186 Difference]: Start difference. First operand has 128 places, 116 transitions, 261 flow. Second operand 12 states and 1016 transitions. [2022-01-19 13:32:11,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 148 transitions, 489 flow [2022-01-19 13:32:11,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 148 transitions, 480 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 13:32:11,588 INFO L242 Difference]: Finished difference. Result has 131 places, 128 transitions, 333 flow [2022-01-19 13:32:11,589 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=333, PETRI_PLACES=131, PETRI_TRANSITIONS=128} [2022-01-19 13:32:11,589 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 5 predicate places. [2022-01-19 13:32:11,590 INFO L470 AbstractCegarLoop]: Abstraction has has 131 places, 128 transitions, 333 flow [2022-01-19 13:32:11,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 82.0909090909091) internal successors, (903), 11 states have internal predecessors, (903), 0 states have call successors, (0), 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 13:32:11,590 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:11,591 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:32:11,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 13:32:11,591 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:32:11,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:11,592 INFO L85 PathProgramCache]: Analyzing trace with hash -815040470, now seen corresponding path program 2 times [2022-01-19 13:32:11,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:11,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735156689] [2022-01-19 13:32:11,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:11,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:11,831 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 13:32:11,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:11,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735156689] [2022-01-19 13:32:11,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735156689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:11,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:11,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:32:11,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890707207] [2022-01-19 13:32:11,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:11,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:32:11,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:11,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:32:11,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:32:11,838 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 139 [2022-01-19 13:32:11,840 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 128 transitions, 333 flow. Second operand has 10 states, 10 states have (on average 85.2) internal successors, (852), 10 states have internal predecessors, (852), 0 states have call successors, (0), 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 13:32:11,840 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:11,840 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 139 [2022-01-19 13:32:11,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:12,035 INFO L129 PetriNetUnfolder]: 59/400 cut-off events. [2022-01-19 13:32:12,036 INFO L130 PetriNetUnfolder]: For 99/101 co-relation queries the response was YES. [2022-01-19 13:32:12,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 400 events. 59/400 cut-off events. For 99/101 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1904 event pairs, 4 based on Foata normal form. 4/389 useless extension candidates. Maximal degree in co-relation 500. Up to 71 conditions per place. [2022-01-19 13:32:12,038 INFO L132 encePairwiseOnDemand]: 128/139 looper letters, 54 selfloop transitions, 31 changer transitions 0/159 dead transitions. [2022-01-19 13:32:12,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 159 transitions, 606 flow [2022-01-19 13:32:12,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 13:32:12,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 13:32:12,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 964 transitions. [2022-01-19 13:32:12,041 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6304774362328319 [2022-01-19 13:32:12,041 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 964 transitions. [2022-01-19 13:32:12,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 964 transitions. [2022-01-19 13:32:12,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:12,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 964 transitions. [2022-01-19 13:32:12,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 87.63636363636364) internal successors, (964), 11 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:12,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 0 states have call successors, (0), 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 13:32:12,048 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 0 states have call successors, (0), 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 13:32:12,048 INFO L186 Difference]: Start difference. First operand has 131 places, 128 transitions, 333 flow. Second operand 11 states and 964 transitions. [2022-01-19 13:32:12,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 159 transitions, 606 flow [2022-01-19 13:32:12,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 159 transitions, 600 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 13:32:12,056 INFO L242 Difference]: Finished difference. Result has 140 places, 140 transitions, 461 flow [2022-01-19 13:32:12,056 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=461, PETRI_PLACES=140, PETRI_TRANSITIONS=140} [2022-01-19 13:32:12,058 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 14 predicate places. [2022-01-19 13:32:12,058 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 140 transitions, 461 flow [2022-01-19 13:32:12,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 85.2) internal successors, (852), 10 states have internal predecessors, (852), 0 states have call successors, (0), 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 13:32:12,059 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:12,059 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:32:12,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 13:32:12,060 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:32:12,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:12,061 INFO L85 PathProgramCache]: Analyzing trace with hash -349745785, now seen corresponding path program 1 times [2022-01-19 13:32:12,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:12,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801567087] [2022-01-19 13:32:12,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:12,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:12,294 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 13:32:12,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:12,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801567087] [2022-01-19 13:32:12,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801567087] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:12,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:12,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 13:32:12,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185839882] [2022-01-19 13:32:12,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:12,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 13:32:12,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:12,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 13:32:12,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-01-19 13:32:12,298 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 139 [2022-01-19 13:32:12,299 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 140 transitions, 461 flow. Second operand has 11 states, 11 states have (on average 82.0909090909091) internal successors, (903), 11 states have internal predecessors, (903), 0 states have call successors, (0), 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 13:32:12,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:12,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 139 [2022-01-19 13:32:12,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:12,470 INFO L129 PetriNetUnfolder]: 57/381 cut-off events. [2022-01-19 13:32:12,471 INFO L130 PetriNetUnfolder]: For 218/223 co-relation queries the response was YES. [2022-01-19 13:32:12,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 782 conditions, 381 events. 57/381 cut-off events. For 218/223 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1665 event pairs, 16 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 649. Up to 151 conditions per place. [2022-01-19 13:32:12,473 INFO L132 encePairwiseOnDemand]: 126/139 looper letters, 58 selfloop transitions, 19 changer transitions 2/149 dead transitions. [2022-01-19 13:32:12,473 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 149 transitions, 649 flow [2022-01-19 13:32:12,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 13:32:12,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 13:32:12,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 923 transitions. [2022-01-19 13:32:12,476 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6036625245258339 [2022-01-19 13:32:12,476 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 923 transitions. [2022-01-19 13:32:12,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 923 transitions. [2022-01-19 13:32:12,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:12,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 923 transitions. [2022-01-19 13:32:12,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.9090909090909) internal successors, (923), 11 states have internal predecessors, (923), 0 states have call successors, (0), 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 13:32:12,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 0 states have call successors, (0), 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 13:32:12,482 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 139.0) internal successors, (1668), 12 states have internal predecessors, (1668), 0 states have call successors, (0), 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 13:32:12,482 INFO L186 Difference]: Start difference. First operand has 140 places, 140 transitions, 461 flow. Second operand 11 states and 923 transitions. [2022-01-19 13:32:12,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 149 transitions, 649 flow [2022-01-19 13:32:12,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 149 transitions, 636 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-01-19 13:32:12,487 INFO L242 Difference]: Finished difference. Result has 149 places, 142 transitions, 509 flow [2022-01-19 13:32:12,488 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=509, PETRI_PLACES=149, PETRI_TRANSITIONS=142} [2022-01-19 13:32:12,488 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 23 predicate places. [2022-01-19 13:32:12,489 INFO L470 AbstractCegarLoop]: Abstraction has has 149 places, 142 transitions, 509 flow [2022-01-19 13:32:12,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 82.0909090909091) internal successors, (903), 11 states have internal predecessors, (903), 0 states have call successors, (0), 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 13:32:12,489 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:12,489 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:32:12,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 13:32:12,490 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:32:12,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:12,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1956691305, now seen corresponding path program 2 times [2022-01-19 13:32:12,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:12,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064183939] [2022-01-19 13:32:12,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:12,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:12,684 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 13:32:12,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:12,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064183939] [2022-01-19 13:32:12,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064183939] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:12,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:12,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-19 13:32:12,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926113578] [2022-01-19 13:32:12,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:12,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-19 13:32:12,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:12,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-19 13:32:12,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-01-19 13:32:12,689 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 139 [2022-01-19 13:32:12,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 142 transitions, 509 flow. Second operand has 12 states, 12 states have (on average 81.75) internal successors, (981), 12 states have internal predecessors, (981), 0 states have call successors, (0), 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 13:32:12,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:12,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 139 [2022-01-19 13:32:12,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:12,892 INFO L129 PetriNetUnfolder]: 60/404 cut-off events. [2022-01-19 13:32:12,892 INFO L130 PetriNetUnfolder]: For 277/282 co-relation queries the response was YES. [2022-01-19 13:32:12,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 404 events. 60/404 cut-off events. For 277/282 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1872 event pairs, 17 based on Foata normal form. 3/401 useless extension candidates. Maximal degree in co-relation 698. Up to 148 conditions per place. [2022-01-19 13:32:12,894 INFO L132 encePairwiseOnDemand]: 126/139 looper letters, 56 selfloop transitions, 17 changer transitions 10/153 dead transitions. [2022-01-19 13:32:12,894 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 153 transitions, 717 flow [2022-01-19 13:32:12,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 13:32:12,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 13:32:12,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1005 transitions. [2022-01-19 13:32:12,897 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6025179856115108 [2022-01-19 13:32:12,897 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1005 transitions. [2022-01-19 13:32:12,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1005 transitions. [2022-01-19 13:32:12,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:12,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1005 transitions. [2022-01-19 13:32:12,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 83.75) internal successors, (1005), 12 states have internal predecessors, (1005), 0 states have call successors, (0), 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 13:32:12,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 139.0) internal successors, (1807), 13 states have internal predecessors, (1807), 0 states have call successors, (0), 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 13:32:12,902 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 139.0) internal successors, (1807), 13 states have internal predecessors, (1807), 0 states have call successors, (0), 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 13:32:12,903 INFO L186 Difference]: Start difference. First operand has 149 places, 142 transitions, 509 flow. Second operand 12 states and 1005 transitions. [2022-01-19 13:32:12,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 153 transitions, 717 flow [2022-01-19 13:32:12,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 153 transitions, 688 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-01-19 13:32:12,907 INFO L242 Difference]: Finished difference. Result has 154 places, 140 transitions, 504 flow [2022-01-19 13:32:12,908 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=504, PETRI_PLACES=154, PETRI_TRANSITIONS=140} [2022-01-19 13:32:12,908 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 28 predicate places. [2022-01-19 13:32:12,908 INFO L470 AbstractCegarLoop]: Abstraction has has 154 places, 140 transitions, 504 flow [2022-01-19 13:32:12,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 81.75) internal successors, (981), 12 states have internal predecessors, (981), 0 states have call successors, (0), 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 13:32:12,909 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:12,909 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:32:12,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 13:32:12,909 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:32:12,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:12,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1239625413, now seen corresponding path program 3 times [2022-01-19 13:32:12,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:12,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181111200] [2022-01-19 13:32:12,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:12,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:13,044 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 13:32:13,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:13,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181111200] [2022-01-19 13:32:13,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181111200] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:13,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:13,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 13:32:13,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822587358] [2022-01-19 13:32:13,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:13,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 13:32:13,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:13,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 13:32:13,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-19 13:32:13,047 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 139 [2022-01-19 13:32:13,048 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 140 transitions, 504 flow. Second operand has 8 states, 8 states have (on average 87.25) internal successors, (698), 8 states have internal predecessors, (698), 0 states have call successors, (0), 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 13:32:13,048 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:13,048 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 139 [2022-01-19 13:32:13,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:13,191 INFO L129 PetriNetUnfolder]: 31/320 cut-off events. [2022-01-19 13:32:13,191 INFO L130 PetriNetUnfolder]: For 158/163 co-relation queries the response was YES. [2022-01-19 13:32:13,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 320 events. 31/320 cut-off events. For 158/163 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1387 event pairs, 8 based on Foata normal form. 4/316 useless extension candidates. Maximal degree in co-relation 474. Up to 66 conditions per place. [2022-01-19 13:32:13,193 INFO L132 encePairwiseOnDemand]: 129/139 looper letters, 0 selfloop transitions, 0 changer transitions 140/140 dead transitions. [2022-01-19 13:32:13,196 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 140 transitions, 637 flow [2022-01-19 13:32:13,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 13:32:13,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 13:32:13,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 785 transitions. [2022-01-19 13:32:13,200 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.627498001598721 [2022-01-19 13:32:13,200 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 785 transitions. [2022-01-19 13:32:13,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 785 transitions. [2022-01-19 13:32:13,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:13,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 785 transitions. [2022-01-19 13:32:13,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 87.22222222222223) internal successors, (785), 9 states have internal predecessors, (785), 0 states have call successors, (0), 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 13:32:13,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 0 states have call successors, (0), 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 13:32:13,205 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 0 states have call successors, (0), 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 13:32:13,205 INFO L186 Difference]: Start difference. First operand has 154 places, 140 transitions, 504 flow. Second operand 9 states and 785 transitions. [2022-01-19 13:32:13,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 140 transitions, 637 flow [2022-01-19 13:32:13,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 140 transitions, 599 flow, removed 2 selfloop flow, removed 11 redundant places. [2022-01-19 13:32:13,209 INFO L242 Difference]: Finished difference. Result has 145 places, 0 transitions, 0 flow [2022-01-19 13:32:13,209 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=145, PETRI_TRANSITIONS=0} [2022-01-19 13:32:13,211 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 19 predicate places. [2022-01-19 13:32:13,211 INFO L470 AbstractCegarLoop]: Abstraction has has 145 places, 0 transitions, 0 flow [2022-01-19 13:32:13,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 87.25) internal successors, (698), 8 states have internal predecessors, (698), 0 states have call successors, (0), 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 13:32:13,215 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-19 13:32:13,215 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-19 13:32:13,215 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-19 13:32:13,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 13:32:13,218 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 1] [2022-01-19 13:32:13,220 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 13:32:13,220 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 13:32:13,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 01:32:13 BasicIcfg [2022-01-19 13:32:13,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 13:32:13,226 INFO L158 Benchmark]: Toolchain (without parser) took 3962.03ms. Allocated memory was 373.3MB in the beginning and 463.5MB in the end (delta: 90.2MB). Free memory was 320.3MB in the beginning and 364.1MB in the end (delta: -43.9MB). Peak memory consumption was 48.0MB. Max. memory is 16.0GB. [2022-01-19 13:32:13,227 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 373.3MB. Free memory is still 337.2MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 13:32:13,229 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.58ms. Allocated memory was 373.3MB in the beginning and 463.5MB in the end (delta: 90.2MB). Free memory was 320.1MB in the beginning and 437.0MB in the end (delta: -116.9MB). Peak memory consumption was 8.3MB. Max. memory is 16.0GB. [2022-01-19 13:32:13,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.40ms. Allocated memory is still 463.5MB. Free memory was 437.0MB in the beginning and 434.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 13:32:13,234 INFO L158 Benchmark]: Boogie Preprocessor took 19.13ms. Allocated memory is still 463.5MB. Free memory was 434.9MB in the beginning and 433.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 13:32:13,235 INFO L158 Benchmark]: RCFGBuilder took 390.26ms. Allocated memory is still 463.5MB. Free memory was 433.8MB in the beginning and 413.9MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2022-01-19 13:32:13,235 INFO L158 Benchmark]: TraceAbstraction took 3245.97ms. Allocated memory is still 463.5MB. Free memory was 413.9MB in the beginning and 364.1MB in the end (delta: 49.8MB). Peak memory consumption was 52.9MB. Max. memory is 16.0GB. [2022-01-19 13:32:13,236 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 373.3MB. Free memory is still 337.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 261.58ms. Allocated memory was 373.3MB in the beginning and 463.5MB in the end (delta: 90.2MB). Free memory was 320.1MB in the beginning and 437.0MB in the end (delta: -116.9MB). Peak memory consumption was 8.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 32.40ms. Allocated memory is still 463.5MB. Free memory was 437.0MB in the beginning and 434.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 19.13ms. Allocated memory is still 463.5MB. Free memory was 434.9MB in the beginning and 433.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 390.26ms. Allocated memory is still 463.5MB. Free memory was 433.8MB in the beginning and 413.9MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 3245.97ms. Allocated memory is still 463.5MB. Free memory was 413.9MB in the beginning and 364.1MB in the end (delta: 49.8MB). Peak memory consumption was 52.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 115]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 152 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 447 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 447 mSDsluCounter, 651 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 619 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 817 IncrementalHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 198 mSDtfsCounter, 817 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=509occurred in iteration=4, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 665 NumberOfCodeBlocks, 665 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 659 ConstructedInterpolants, 0 QuantifiedInterpolants, 2308 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-19 13:32:13,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...