/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi002_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:33:51,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:33:51,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:33:51,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:33:51,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:33:51,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:33:51,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:33:51,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:33:51,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:33:51,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:33:51,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:33:51,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:33:51,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:33:51,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:33:51,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:33:51,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:33:51,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:33:51,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:33:51,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:33:51,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:33:51,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:33:51,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:33:51,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:33:51,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:33:51,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:33:51,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:33:51,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:33:51,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:33:51,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:33:51,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:33:51,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:33:51,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:33:51,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:33:51,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:33:51,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:33:51,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:33:51,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:33:51,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:33:51,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:33:51,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:33:51,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:33:51,374 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 16:33:51,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:33:51,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:33:51,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:33:51,398 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:33:51,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:33:51,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:33:51,399 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:33:51,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:33:51,400 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:33:51,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:33:51,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:33:51,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:33:51,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:33:51,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:33:51,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:33:51,401 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:33:51,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:33:51,401 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:33:51,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:33:51,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:33:51,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:33:51,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:33:51,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:33:51,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:33:51,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:33:51,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:33:51,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:33:51,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:33:51,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:33:51,402 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:33:51,402 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:33:51,403 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:33:51,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:33:51,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:33:51,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:33:51,806 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:33:51,807 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:33:51,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi002_tso.i [2022-12-06 16:33:52,948 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:33:53,235 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:33:53,236 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_tso.i [2022-12-06 16:33:53,247 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96f7b3bbc/4fe68b72e5734893b3d1b08520167bbd/FLAGbf8450a73 [2022-12-06 16:33:53,257 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96f7b3bbc/4fe68b72e5734893b3d1b08520167bbd [2022-12-06 16:33:53,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:33:53,260 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:33:53,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:33:53,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:33:53,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:33:53,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:33:53" (1/1) ... [2022-12-06 16:33:53,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fd0eefc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:53, skipping insertion in model container [2022-12-06 16:33:53,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:33:53" (1/1) ... [2022-12-06 16:33:53,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:33:53,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:33:53,450 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_tso.i[987,1000] [2022-12-06 16:33:53,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,639 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,640 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,670 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,677 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:33:53,692 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:33:53,701 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_tso.i[987,1000] [2022-12-06 16:33:53,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,732 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,732 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,764 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:53,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:53,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:33:53,800 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:33:53,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:53 WrapperNode [2022-12-06 16:33:53,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:33:53,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:33:53,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:33:53,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:33:53,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:53" (1/1) ... [2022-12-06 16:33:53,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:53" (1/1) ... [2022-12-06 16:33:53,856 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 203 [2022-12-06 16:33:53,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:33:53,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:33:53,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:33:53,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:33:53,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:53" (1/1) ... [2022-12-06 16:33:53,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:53" (1/1) ... [2022-12-06 16:33:53,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:53" (1/1) ... [2022-12-06 16:33:53,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:53" (1/1) ... [2022-12-06 16:33:53,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:53" (1/1) ... [2022-12-06 16:33:53,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:53" (1/1) ... [2022-12-06 16:33:53,878 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:53" (1/1) ... [2022-12-06 16:33:53,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:53" (1/1) ... [2022-12-06 16:33:53,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:33:53,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:33:53,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:33:53,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:33:53,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:53" (1/1) ... [2022-12-06 16:33:53,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:33:53,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:33:53,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 16:33:53,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 16:33:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:33:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 16:33:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:33:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:33:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:33:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 16:33:53,970 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 16:33:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 16:33:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 16:33:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:33:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 16:33:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:33:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:33:53,972 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:33:54,077 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:33:54,078 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:33:54,438 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:33:54,630 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:33:54,630 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:33:54,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:33:54 BoogieIcfgContainer [2022-12-06 16:33:54,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:33:54,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:33:54,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:33:54,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:33:54,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:33:53" (1/3) ... [2022-12-06 16:33:54,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63090429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:33:54, skipping insertion in model container [2022-12-06 16:33:54,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:53" (2/3) ... [2022-12-06 16:33:54,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63090429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:33:54, skipping insertion in model container [2022-12-06 16:33:54,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:33:54" (3/3) ... [2022-12-06 16:33:54,638 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_tso.i [2022-12-06 16:33:54,651 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:33:54,652 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-06 16:33:54,652 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:33:54,769 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:33:54,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 107 transitions, 224 flow [2022-12-06 16:33:54,856 INFO L130 PetriNetUnfolder]: 2/105 cut-off events. [2022-12-06 16:33:54,856 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:33:54,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 105 events. 2/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2022-12-06 16:33:54,863 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 107 transitions, 224 flow [2022-12-06 16:33:54,867 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 105 transitions, 216 flow [2022-12-06 16:33:54,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:33:54,879 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7b30a7d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:33:54,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-06 16:33:54,904 INFO L130 PetriNetUnfolder]: 0/69 cut-off events. [2022-12-06 16:33:54,904 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:33:54,904 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:33:54,905 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:33:54,906 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:33:54,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:33:54,912 INFO L85 PathProgramCache]: Analyzing trace with hash -653187644, now seen corresponding path program 1 times [2022-12-06 16:33:54,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:33:54,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501002528] [2022-12-06 16:33:54,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:33:54,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:33:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:33:55,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:33:55,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:33:55,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501002528] [2022-12-06 16:33:55,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501002528] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:33:55,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:33:55,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 16:33:55,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304386802] [2022-12-06 16:33:55,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:33:55,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 16:33:55,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:33:55,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 16:33:55,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 16:33:55,458 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2022-12-06 16:33:55,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 105 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:55,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:33:55,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2022-12-06 16:33:55,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:33:55,674 INFO L130 PetriNetUnfolder]: 111/665 cut-off events. [2022-12-06 16:33:55,675 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-06 16:33:55,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 879 conditions, 665 events. 111/665 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4413 event pairs, 49 based on Foata normal form. 40/641 useless extension candidates. Maximal degree in co-relation 819. Up to 175 conditions per place. [2022-12-06 16:33:55,684 INFO L137 encePairwiseOnDemand]: 102/107 looper letters, 17 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2022-12-06 16:33:55,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 106 transitions, 256 flow [2022-12-06 16:33:55,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 16:33:55,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 16:33:55,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2022-12-06 16:33:55,699 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9065420560747663 [2022-12-06 16:33:55,703 INFO L294 CegarLoopForPetriNet]: 110 programPoint places, 0 predicate places. [2022-12-06 16:33:55,703 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 106 transitions, 256 flow [2022-12-06 16:33:55,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:55,703 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:33:55,703 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:33:55,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:33:55,704 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:33:55,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:33:55,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1226020025, now seen corresponding path program 1 times [2022-12-06 16:33:55,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:33:55,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034433747] [2022-12-06 16:33:55,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:33:55,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:33:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:33:55,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:33:55,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:33:55,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034433747] [2022-12-06 16:33:55,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034433747] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:33:55,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:33:55,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 16:33:55,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576829619] [2022-12-06 16:33:55,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:33:55,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 16:33:55,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:33:55,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 16:33:55,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 16:33:55,884 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2022-12-06 16:33:55,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 106 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:55,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:33:55,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2022-12-06 16:33:55,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:33:55,974 INFO L130 PetriNetUnfolder]: 94/388 cut-off events. [2022-12-06 16:33:55,974 INFO L131 PetriNetUnfolder]: For 35/353 co-relation queries the response was YES. [2022-12-06 16:33:55,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 388 events. 94/388 cut-off events. For 35/353 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1822 event pairs, 9 based on Foata normal form. 1/362 useless extension candidates. Maximal degree in co-relation 682. Up to 146 conditions per place. [2022-12-06 16:33:55,976 INFO L137 encePairwiseOnDemand]: 104/107 looper letters, 21 selfloop transitions, 2 changer transitions 0/110 dead transitions. [2022-12-06 16:33:55,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 110 transitions, 318 flow [2022-12-06 16:33:55,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 16:33:55,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 16:33:55,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2022-12-06 16:33:55,978 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8909657320872274 [2022-12-06 16:33:55,978 INFO L294 CegarLoopForPetriNet]: 110 programPoint places, 1 predicate places. [2022-12-06 16:33:55,979 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 110 transitions, 318 flow [2022-12-06 16:33:55,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:55,979 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:33:55,979 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:33:55,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:33:55,979 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:33:55,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:33:55,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1930818778, now seen corresponding path program 1 times [2022-12-06 16:33:55,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:33:55,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096964852] [2022-12-06 16:33:55,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:33:55,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:33:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:33:56,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:33:56,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:33:56,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096964852] [2022-12-06 16:33:56,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096964852] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:33:56,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:33:56,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:33:56,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056883249] [2022-12-06 16:33:56,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:33:56,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:33:56,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:33:56,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:33:56,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:33:56,624 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 107 [2022-12-06 16:33:56,625 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 110 transitions, 318 flow. Second operand has 7 states, 7 states have (on average 75.71428571428571) internal successors, (530), 7 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:56,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:33:56,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 107 [2022-12-06 16:33:56,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:33:57,064 INFO L130 PetriNetUnfolder]: 402/1114 cut-off events. [2022-12-06 16:33:57,064 INFO L131 PetriNetUnfolder]: For 708/1872 co-relation queries the response was YES. [2022-12-06 16:33:57,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2766 conditions, 1114 events. 402/1114 cut-off events. For 708/1872 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 6910 event pairs, 60 based on Foata normal form. 0/1080 useless extension candidates. Maximal degree in co-relation 2690. Up to 421 conditions per place. [2022-12-06 16:33:57,070 INFO L137 encePairwiseOnDemand]: 101/107 looper letters, 43 selfloop transitions, 4 changer transitions 79/190 dead transitions. [2022-12-06 16:33:57,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 190 transitions, 995 flow [2022-12-06 16:33:57,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 16:33:57,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 16:33:57,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 746 transitions. [2022-12-06 16:33:57,072 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.77466251298027 [2022-12-06 16:33:57,073 INFO L294 CegarLoopForPetriNet]: 110 programPoint places, 9 predicate places. [2022-12-06 16:33:57,073 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 190 transitions, 995 flow [2022-12-06 16:33:57,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.71428571428571) internal successors, (530), 7 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:57,074 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:33:57,074 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:33:57,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:33:57,074 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:33:57,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:33:57,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1782872036, now seen corresponding path program 1 times [2022-12-06 16:33:57,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:33:57,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689225327] [2022-12-06 16:33:57,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:33:57,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:33:57,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:33:57,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:33:57,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:33:57,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689225327] [2022-12-06 16:33:57,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689225327] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:33:57,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:33:57,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:33:57,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424658842] [2022-12-06 16:33:57,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:33:57,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:33:57,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:33:57,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:33:57,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:33:57,602 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 107 [2022-12-06 16:33:57,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 190 transitions, 995 flow. Second operand has 7 states, 7 states have (on average 76.14285714285714) internal successors, (533), 7 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:57,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:33:57,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 107 [2022-12-06 16:33:57,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:33:58,092 INFO L130 PetriNetUnfolder]: 517/1436 cut-off events. [2022-12-06 16:33:58,092 INFO L131 PetriNetUnfolder]: For 837/3677 co-relation queries the response was YES. [2022-12-06 16:33:58,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4459 conditions, 1436 events. 517/1436 cut-off events. For 837/3677 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 9889 event pairs, 33 based on Foata normal form. 4/1414 useless extension candidates. Maximal degree in co-relation 4370. Up to 543 conditions per place. [2022-12-06 16:33:58,097 INFO L137 encePairwiseOnDemand]: 100/107 looper letters, 47 selfloop transitions, 4 changer transitions 170/285 dead transitions. [2022-12-06 16:33:58,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 285 transitions, 2059 flow [2022-12-06 16:33:58,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:33:58,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:33:58,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 814 transitions. [2022-12-06 16:33:58,106 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7607476635514019 [2022-12-06 16:33:58,107 INFO L294 CegarLoopForPetriNet]: 110 programPoint places, 18 predicate places. [2022-12-06 16:33:58,108 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 285 transitions, 2059 flow [2022-12-06 16:33:58,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.14285714285714) internal successors, (533), 7 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:58,108 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:33:58,108 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:33:58,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:33:58,108 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:33:58,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:33:58,109 INFO L85 PathProgramCache]: Analyzing trace with hash -745702693, now seen corresponding path program 1 times [2022-12-06 16:33:58,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:33:58,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975064377] [2022-12-06 16:33:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:33:58,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:33:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:33:59,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:33:59,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:33:59,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975064377] [2022-12-06 16:33:59,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975064377] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:33:59,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:33:59,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-06 16:33:59,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056843590] [2022-12-06 16:33:59,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:33:59,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-06 16:33:59,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:33:59,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-06 16:33:59,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-12-06 16:33:59,065 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 107 [2022-12-06 16:33:59,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 285 transitions, 2059 flow. Second operand has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:33:59,066 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:33:59,066 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 107 [2022-12-06 16:33:59,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:00,017 INFO L130 PetriNetUnfolder]: 1019/3125 cut-off events. [2022-12-06 16:34:00,018 INFO L131 PetriNetUnfolder]: For 1895/4622 co-relation queries the response was YES. [2022-12-06 16:34:00,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11179 conditions, 3125 events. 1019/3125 cut-off events. For 1895/4622 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 27940 event pairs, 16 based on Foata normal form. 25/3119 useless extension candidates. Maximal degree in co-relation 11081. Up to 1142 conditions per place. [2022-12-06 16:34:00,028 INFO L137 encePairwiseOnDemand]: 95/107 looper letters, 52 selfloop transitions, 11 changer transitions 474/605 dead transitions. [2022-12-06 16:34:00,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 605 transitions, 5954 flow [2022-12-06 16:34:00,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 16:34:00,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 16:34:00,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1414 transitions. [2022-12-06 16:34:00,031 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.777350192413414 [2022-12-06 16:34:00,032 INFO L294 CegarLoopForPetriNet]: 110 programPoint places, 34 predicate places. [2022-12-06 16:34:00,032 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 605 transitions, 5954 flow [2022-12-06 16:34:00,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.61538461538461) internal successors, (1022), 13 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:00,032 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:00,032 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:34:00,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:34:00,033 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:34:00,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:00,033 INFO L85 PathProgramCache]: Analyzing trace with hash -477495188, now seen corresponding path program 1 times [2022-12-06 16:34:00,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:00,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948358073] [2022-12-06 16:34:00,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:00,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:00,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:34:00,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:00,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948358073] [2022-12-06 16:34:00,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948358073] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:00,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:00,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 16:34:00,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343334828] [2022-12-06 16:34:00,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:00,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 16:34:00,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:00,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 16:34:00,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-06 16:34:00,826 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2022-12-06 16:34:00,827 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 605 transitions, 5954 flow. Second operand has 9 states, 9 states have (on average 75.0) internal successors, (675), 9 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:00,827 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:00,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2022-12-06 16:34:00,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:02,393 INFO L130 PetriNetUnfolder]: 1538/4753 cut-off events. [2022-12-06 16:34:02,393 INFO L131 PetriNetUnfolder]: For 3918/23946 co-relation queries the response was YES. [2022-12-06 16:34:02,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19625 conditions, 4753 events. 1538/4753 cut-off events. For 3918/23946 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 46708 event pairs, 4 based on Foata normal form. 39/4763 useless extension candidates. Maximal degree in co-relation 19513. Up to 1855 conditions per place. [2022-12-06 16:34:02,424 INFO L137 encePairwiseOnDemand]: 93/107 looper letters, 73 selfloop transitions, 26 changer transitions 944/1106 dead transitions. [2022-12-06 16:34:02,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 1106 transitions, 13286 flow [2022-12-06 16:34:02,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:34:02,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:34:02,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 958 transitions. [2022-12-06 16:34:02,444 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7461059190031153 [2022-12-06 16:34:02,446 INFO L294 CegarLoopForPetriNet]: 110 programPoint places, 45 predicate places. [2022-12-06 16:34:02,446 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 1106 transitions, 13286 flow [2022-12-06 16:34:02,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 75.0) internal successors, (675), 9 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:02,447 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:02,447 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:34:02,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:34:02,447 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:34:02,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:02,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1669676986, now seen corresponding path program 2 times [2022-12-06 16:34:02,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:02,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187527848] [2022-12-06 16:34:02,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:02,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:03,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:34:03,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:03,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187527848] [2022-12-06 16:34:03,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187527848] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:03,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:03,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 16:34:03,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118709887] [2022-12-06 16:34:03,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:03,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 16:34:03,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:03,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 16:34:03,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-06 16:34:03,188 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 107 [2022-12-06 16:34:03,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 1106 transitions, 13286 flow. Second operand has 9 states, 9 states have (on average 71.22222222222223) internal successors, (641), 9 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:03,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:03,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 107 [2022-12-06 16:34:03,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:06,006 INFO L130 PetriNetUnfolder]: 4806/13210 cut-off events. [2022-12-06 16:34:06,006 INFO L131 PetriNetUnfolder]: For 28374/31989 co-relation queries the response was YES. [2022-12-06 16:34:06,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55271 conditions, 13210 events. 4806/13210 cut-off events. For 28374/31989 co-relation queries the response was YES. Maximal size of possible extension queue 972. Compared 150751 event pairs, 24 based on Foata normal form. 61/13255 useless extension candidates. Maximal degree in co-relation 55144. Up to 4302 conditions per place. [2022-12-06 16:34:06,054 INFO L137 encePairwiseOnDemand]: 92/107 looper letters, 117 selfloop transitions, 31 changer transitions 2438/2645 dead transitions. [2022-12-06 16:34:06,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 2645 transitions, 37329 flow [2022-12-06 16:34:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 16:34:06,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 16:34:06,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1111 transitions. [2022-12-06 16:34:06,059 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7416555407209613 [2022-12-06 16:34:06,059 INFO L294 CegarLoopForPetriNet]: 110 programPoint places, 58 predicate places. [2022-12-06 16:34:06,059 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 2645 transitions, 37329 flow [2022-12-06 16:34:06,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 71.22222222222223) internal successors, (641), 9 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:06,060 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:06,060 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:34:06,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:34:06,060 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:34:06,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:06,061 INFO L85 PathProgramCache]: Analyzing trace with hash -12013652, now seen corresponding path program 3 times [2022-12-06 16:34:06,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:06,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448248866] [2022-12-06 16:34:06,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:06,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:07,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:34:07,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:07,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448248866] [2022-12-06 16:34:07,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448248866] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:07,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:07,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-06 16:34:07,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405564776] [2022-12-06 16:34:07,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:07,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:34:07,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:07,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:34:07,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-12-06 16:34:07,804 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2022-12-06 16:34:07,805 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 2645 transitions, 37329 flow. Second operand has 16 states, 16 states have (on average 75.5625) internal successors, (1209), 16 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:07,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:07,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2022-12-06 16:34:07,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:12,775 INFO L130 PetriNetUnfolder]: 6442/18374 cut-off events. [2022-12-06 16:34:12,775 INFO L131 PetriNetUnfolder]: For 53840/63380 co-relation queries the response was YES. [2022-12-06 16:34:12,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83577 conditions, 18374 events. 6442/18374 cut-off events. For 53840/63380 co-relation queries the response was YES. Maximal size of possible extension queue 1384. Compared 225737 event pairs, 41 based on Foata normal form. 143/18491 useless extension candidates. Maximal degree in co-relation 83438. Up to 6103 conditions per place. [2022-12-06 16:34:12,884 INFO L137 encePairwiseOnDemand]: 94/107 looper letters, 165 selfloop transitions, 22 changer transitions 3628/3886 dead transitions. [2022-12-06 16:34:12,884 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 3886 transitions, 62525 flow [2022-12-06 16:34:12,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-06 16:34:12,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-12-06 16:34:12,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1765 transitions. [2022-12-06 16:34:12,903 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7497875955819882 [2022-12-06 16:34:12,905 INFO L294 CegarLoopForPetriNet]: 110 programPoint places, 79 predicate places. [2022-12-06 16:34:12,905 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 3886 transitions, 62525 flow [2022-12-06 16:34:12,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 75.5625) internal successors, (1209), 16 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:12,906 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:12,906 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:34:12,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 16:34:12,906 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:34:12,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:12,907 INFO L85 PathProgramCache]: Analyzing trace with hash -704026136, now seen corresponding path program 4 times [2022-12-06 16:34:12,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:12,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623592475] [2022-12-06 16:34:12,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:12,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:15,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:34:15,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:15,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623592475] [2022-12-06 16:34:15,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623592475] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:15,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:15,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-06 16:34:15,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007687070] [2022-12-06 16:34:15,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:15,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-06 16:34:15,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:15,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-06 16:34:15,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2022-12-06 16:34:15,027 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 107 [2022-12-06 16:34:15,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 3886 transitions, 62525 flow. Second operand has 17 states, 17 states have (on average 69.70588235294117) internal successors, (1185), 17 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:15,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:15,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 107 [2022-12-06 16:34:15,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:23,905 INFO L130 PetriNetUnfolder]: 7503/21726 cut-off events. [2022-12-06 16:34:23,905 INFO L131 PetriNetUnfolder]: For 51630/62976 co-relation queries the response was YES. [2022-12-06 16:34:23,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110485 conditions, 21726 events. 7503/21726 cut-off events. For 51630/62976 co-relation queries the response was YES. Maximal size of possible extension queue 1557. Compared 272966 event pairs, 16 based on Foata normal form. 193/21894 useless extension candidates. Maximal degree in co-relation 110331. Up to 7489 conditions per place. [2022-12-06 16:34:23,976 INFO L137 encePairwiseOnDemand]: 88/107 looper letters, 178 selfloop transitions, 47 changer transitions 4557/4841 dead transitions. [2022-12-06 16:34:23,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 4841 transitions, 86763 flow [2022-12-06 16:34:23,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-06 16:34:23,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-12-06 16:34:23,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2502 transitions. [2022-12-06 16:34:23,980 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7085811384876806 [2022-12-06 16:34:23,981 INFO L294 CegarLoopForPetriNet]: 110 programPoint places, 111 predicate places. [2022-12-06 16:34:23,981 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 4841 transitions, 86763 flow [2022-12-06 16:34:23,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 69.70588235294117) internal successors, (1185), 17 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:23,981 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:23,981 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:34:23,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 16:34:23,982 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:34:23,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:23,982 INFO L85 PathProgramCache]: Analyzing trace with hash 996319616, now seen corresponding path program 1 times [2022-12-06 16:34:23,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:23,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427142109] [2022-12-06 16:34:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:23,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:24,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:34:24,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:24,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427142109] [2022-12-06 16:34:24,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427142109] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:24,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:24,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 16:34:24,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968366575] [2022-12-06 16:34:24,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:24,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 16:34:24,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:24,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 16:34:24,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-06 16:34:24,689 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 107 [2022-12-06 16:34:24,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 4841 transitions, 86763 flow. Second operand has 11 states, 11 states have (on average 74.54545454545455) internal successors, (820), 11 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:24,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:24,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 107 [2022-12-06 16:34:24,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:36,322 INFO L130 PetriNetUnfolder]: 9104/27079 cut-off events. [2022-12-06 16:34:36,322 INFO L131 PetriNetUnfolder]: For 91125/104397 co-relation queries the response was YES. [2022-12-06 16:34:36,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146457 conditions, 27079 events. 9104/27079 cut-off events. For 91125/104397 co-relation queries the response was YES. Maximal size of possible extension queue 2062. Compared 358073 event pairs, 37 based on Foata normal form. 295/27343 useless extension candidates. Maximal degree in co-relation 146289. Up to 9538 conditions per place. [2022-12-06 16:34:36,408 INFO L137 encePairwiseOnDemand]: 92/107 looper letters, 137 selfloop transitions, 39 changer transitions 5536/5790 dead transitions. [2022-12-06 16:34:36,408 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 5790 transitions, 115269 flow [2022-12-06 16:34:36,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 16:34:36,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 16:34:36,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1580 transitions. [2022-12-06 16:34:36,410 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7383177570093458 [2022-12-06 16:34:36,411 INFO L294 CegarLoopForPetriNet]: 110 programPoint places, 130 predicate places. [2022-12-06 16:34:36,411 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 5790 transitions, 115269 flow [2022-12-06 16:34:36,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.54545454545455) internal successors, (820), 11 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:36,411 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:36,411 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:34:36,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 16:34:36,412 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:34:36,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:36,412 INFO L85 PathProgramCache]: Analyzing trace with hash -569327078, now seen corresponding path program 2 times [2022-12-06 16:34:36,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:36,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408675457] [2022-12-06 16:34:36,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:36,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:37,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:34:37,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:37,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408675457] [2022-12-06 16:34:37,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408675457] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:37,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:37,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 16:34:37,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701340698] [2022-12-06 16:34:37,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:37,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:34:37,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:37,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:34:37,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-12-06 16:34:37,303 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2022-12-06 16:34:37,304 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 5790 transitions, 115269 flow. Second operand has 14 states, 14 states have (on average 75.85714285714286) internal successors, (1062), 14 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:37,304 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:37,304 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2022-12-06 16:34:37,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:54,697 INFO L130 PetriNetUnfolder]: 10446/31496 cut-off events. [2022-12-06 16:34:54,697 INFO L131 PetriNetUnfolder]: For 136410/153837 co-relation queries the response was YES. [2022-12-06 16:34:54,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182127 conditions, 31496 events. 10446/31496 cut-off events. For 136410/153837 co-relation queries the response was YES. Maximal size of possible extension queue 2434. Compared 429760 event pairs, 39 based on Foata normal form. 309/31775 useless extension candidates. Maximal degree in co-relation 181947. Up to 11281 conditions per place. [2022-12-06 16:34:54,797 INFO L137 encePairwiseOnDemand]: 90/107 looper letters, 142 selfloop transitions, 46 changer transitions 6555/6823 dead transitions. [2022-12-06 16:34:54,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 6823 transitions, 149319 flow [2022-12-06 16:34:54,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-06 16:34:54,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-06 16:34:54,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2106 transitions. [2022-12-06 16:34:54,800 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7570093457943925 [2022-12-06 16:34:54,801 INFO L294 CegarLoopForPetriNet]: 110 programPoint places, 155 predicate places. [2022-12-06 16:34:54,801 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 6823 transitions, 149319 flow [2022-12-06 16:34:54,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 75.85714285714286) internal successors, (1062), 14 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:54,801 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:54,802 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:34:54,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-06 16:34:54,802 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:34:54,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:54,802 INFO L85 PathProgramCache]: Analyzing trace with hash -2075310458, now seen corresponding path program 3 times [2022-12-06 16:34:54,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:54,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507525217] [2022-12-06 16:34:54,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:54,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:55,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:34:55,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:55,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507525217] [2022-12-06 16:34:55,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507525217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:55,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:55,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-06 16:34:55,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91817737] [2022-12-06 16:34:55,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:55,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-06 16:34:55,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:55,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-06 16:34:55,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-06 16:34:55,530 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2022-12-06 16:34:55,532 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 6823 transitions, 149319 flow. Second operand has 12 states, 12 states have (on average 76.16666666666667) internal successors, (914), 12 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:55,532 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:55,532 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2022-12-06 16:34:55,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:35:18,745 INFO L130 PetriNetUnfolder]: 10854/32756 cut-off events. [2022-12-06 16:35:18,745 INFO L131 PetriNetUnfolder]: For 177804/200488 co-relation queries the response was YES. [2022-12-06 16:35:18,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203120 conditions, 32756 events. 10854/32756 cut-off events. For 177804/200488 co-relation queries the response was YES. Maximal size of possible extension queue 2573. Compared 450377 event pairs, 37 based on Foata normal form. 249/32982 useless extension candidates. Maximal degree in co-relation 202928. Up to 11755 conditions per place. [2022-12-06 16:35:18,891 INFO L137 encePairwiseOnDemand]: 98/107 looper letters, 96 selfloop transitions, 8 changer transitions 6853/7031 dead transitions. [2022-12-06 16:35:18,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 7031 transitions, 167635 flow [2022-12-06 16:35:18,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:35:18,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:35:18,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 967 transitions. [2022-12-06 16:35:18,893 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7531152647975078 [2022-12-06 16:35:18,893 INFO L294 CegarLoopForPetriNet]: 110 programPoint places, 166 predicate places. [2022-12-06 16:35:18,893 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 7031 transitions, 167635 flow [2022-12-06 16:35:18,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 76.16666666666667) internal successors, (914), 12 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:35:18,894 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:35:18,894 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:35:18,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-06 16:35:18,894 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-06 16:35:18,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:35:18,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1815360122, now seen corresponding path program 4 times [2022-12-06 16:35:18,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:35:18,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850384710] [2022-12-06 16:35:18,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:35:18,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:35:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:35:19,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:35:19,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:35:19,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850384710] [2022-12-06 16:35:19,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850384710] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:35:19,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:35:19,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-06 16:35:19,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30775769] [2022-12-06 16:35:19,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:35:19,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-06 16:35:19,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:35:19,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-06 16:35:19,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-06 16:35:19,714 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 107 [2022-12-06 16:35:19,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 7031 transitions, 167635 flow. Second operand has 12 states, 12 states have (on average 78.91666666666667) internal successors, (947), 12 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:35:19,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:35:19,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 107 [2022-12-06 16:35:19,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:35:43,876 INFO L130 PetriNetUnfolder]: 10847/32920 cut-off events. [2022-12-06 16:35:43,877 INFO L131 PetriNetUnfolder]: For 219183/241878 co-relation queries the response was YES. [2022-12-06 16:35:43,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217456 conditions, 32920 events. 10847/32920 cut-off events. For 219183/241878 co-relation queries the response was YES. Maximal size of possible extension queue 2603. Compared 454583 event pairs, 35 based on Foata normal form. 192/33095 useless extension candidates. Maximal degree in co-relation 217254. Up to 11747 conditions per place. [2022-12-06 16:35:43,992 INFO L137 encePairwiseOnDemand]: 98/107 looper letters, 0 selfloop transitions, 0 changer transitions 7034/7034 dead transitions. [2022-12-06 16:35:43,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 7034 transitions, 181329 flow [2022-12-06 16:35:43,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:35:43,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:35:43,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 829 transitions. [2022-12-06 16:35:43,994 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7747663551401869 [2022-12-06 16:35:43,995 INFO L294 CegarLoopForPetriNet]: 110 programPoint places, 173 predicate places. [2022-12-06 16:35:43,995 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 7034 transitions, 181329 flow [2022-12-06 16:35:43,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 78.91666666666667) internal successors, (947), 12 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:35:43,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-12-06 16:35:43,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-06 16:35:43,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2022-12-06 16:35:43,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-12-06 16:35:43,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-12-06 16:35:43,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2022-12-06 16:35:43,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-06 16:35:43,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-06 16:35:43,998 INFO L458 BasicCegarLoop]: Path program histogram: [4, 4, 1, 1, 1, 1, 1] [2022-12-06 16:35:44,002 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:35:44,002 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:35:44,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:35:44 BasicIcfg [2022-12-06 16:35:44,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:35:44,006 INFO L158 Benchmark]: Toolchain (without parser) took 110745.74ms. Allocated memory was 198.2MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 172.5MB in the beginning and 518.8MB in the end (delta: -346.3MB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2022-12-06 16:35:44,006 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 198.2MB. Free memory was 173.8MB in the beginning and 173.6MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:35:44,006 INFO L158 Benchmark]: CACSL2BoogieTranslator took 539.94ms. Allocated memory is still 198.2MB. Free memory was 172.5MB in the beginning and 142.0MB in the end (delta: 30.5MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2022-12-06 16:35:44,006 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.11ms. Allocated memory is still 198.2MB. Free memory was 142.0MB in the beginning and 138.4MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 16:35:44,006 INFO L158 Benchmark]: Boogie Preprocessor took 26.38ms. Allocated memory is still 198.2MB. Free memory was 138.4MB in the beginning and 135.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 16:35:44,007 INFO L158 Benchmark]: RCFGBuilder took 747.99ms. Allocated memory is still 198.2MB. Free memory was 135.8MB in the beginning and 71.3MB in the end (delta: 64.5MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. [2022-12-06 16:35:44,007 INFO L158 Benchmark]: TraceAbstraction took 109371.73ms. Allocated memory was 198.2MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 70.8MB in the beginning and 518.8MB in the end (delta: -448.1MB). Peak memory consumption was 2.8GB. Max. memory is 8.0GB. [2022-12-06 16:35:44,008 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 198.2MB. Free memory was 173.8MB in the beginning and 173.6MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 539.94ms. Allocated memory is still 198.2MB. Free memory was 172.5MB in the beginning and 142.0MB in the end (delta: 30.5MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.11ms. Allocated memory is still 198.2MB. Free memory was 142.0MB in the beginning and 138.4MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.38ms. Allocated memory is still 198.2MB. Free memory was 138.4MB in the beginning and 135.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 747.99ms. Allocated memory is still 198.2MB. Free memory was 135.8MB in the beginning and 71.3MB in the end (delta: 64.5MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. * TraceAbstraction took 109371.73ms. Allocated memory was 198.2MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 70.8MB in the beginning and 518.8MB in the end (delta: -448.1MB). Peak memory consumption was 2.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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, 129 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 109.2s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 97.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1503 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1503 mSDsluCounter, 1453 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1208 mSDsCounter, 251 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3751 IncrementalHoareTripleChecker+Invalid, 4002 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 251 mSolverCounterUnsat, 245 mSDtfsCounter, 3751 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 254 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 987 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=181329occurred in iteration=13, InterpolantAutomatonStates: 191, 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, 0.6s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 1025 NumberOfCodeBlocks, 1025 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1012 ConstructedInterpolants, 0 QuantifiedInterpolants, 7886 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:35:44,034 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...