/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/rfi003_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:33:56,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:33:56,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:33:56,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:33:56,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:33:56,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:33:56,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:33:56,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:33:56,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:33:56,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:33:56,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:33:56,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:33:56,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:33:56,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:33:56,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:33:56,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:33:56,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:33:56,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:33:56,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:33:56,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:33:56,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:33:56,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:33:56,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:33:56,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:33:56,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:33:56,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:33:56,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:33:56,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:33:56,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:33:56,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:33:56,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:33:56,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:33:56,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:33:56,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:33:56,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:33:56,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:33:56,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:33:56,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:33:56,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:33:56,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:33:56,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:33:56,409 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 16:33:56,438 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:33:56,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:33:56,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:33:56,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:33:56,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:33:56,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:33:56,442 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:33:56,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:33:56,442 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:33:56,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:33:56,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:33:56,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:33:56,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:33:56,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:33:56,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:33:56,443 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:33:56,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:33:56,443 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:33:56,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:33:56,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:33:56,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:33:56,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:33:56,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:33:56,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:33:56,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:33:56,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:33:56,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:33:56,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:33:56,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:33:56,445 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:33:56,445 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:33:56,445 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:33:56,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:33:56,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:33:56,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:33:56,787 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:33:56,788 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:33:56,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi003_tso.i [2022-12-06 16:33:57,876 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:33:58,136 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:33:58,137 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi003_tso.i [2022-12-06 16:33:58,167 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0bffc726/4867204926fc430994a61a0b588fd1e6/FLAG3c415d042 [2022-12-06 16:33:58,178 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0bffc726/4867204926fc430994a61a0b588fd1e6 [2022-12-06 16:33:58,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:33:58,182 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:33:58,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:33:58,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:33:58,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:33:58,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:33:58" (1/1) ... [2022-12-06 16:33:58,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2451f94d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:58, skipping insertion in model container [2022-12-06 16:33:58,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:33:58" (1/1) ... [2022-12-06 16:33:58,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:33:58,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:33:58,430 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/rfi003_tso.i[944,957] [2022-12-06 16:33:58,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,623 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,623 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,628 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,628 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,632 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,651 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,651 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,659 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,674 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,678 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,679 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,694 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:33:58,711 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:33:58,722 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/rfi003_tso.i[944,957] [2022-12-06 16:33:58,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:33:58,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:33:58,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:33:58,837 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:33:58,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:58 WrapperNode [2022-12-06 16:33:58,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:33:58,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:33:58,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:33:58,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:33:58,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:58" (1/1) ... [2022-12-06 16:33:58,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:58" (1/1) ... [2022-12-06 16:33:58,917 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2022-12-06 16:33:58,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:33:58,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:33:58,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:33:58,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:33:58,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:58" (1/1) ... [2022-12-06 16:33:58,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:58" (1/1) ... [2022-12-06 16:33:58,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:58" (1/1) ... [2022-12-06 16:33:58,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:58" (1/1) ... [2022-12-06 16:33:58,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:58" (1/1) ... [2022-12-06 16:33:58,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:58" (1/1) ... [2022-12-06 16:33:58,959 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:58" (1/1) ... [2022-12-06 16:33:58,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:58" (1/1) ... [2022-12-06 16:33:58,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:33:58,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:33:58,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:33:58,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:33:58,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:58" (1/1) ... [2022-12-06 16:33:58,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:33:59,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:33:59,017 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 16:33:59,039 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 16:33:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:33:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 16:33:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:33:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:33:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:33:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 16:33:59,067 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 16:33:59,067 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 16:33:59,068 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 16:33:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:33:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 16:33:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:33:59,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:33:59,069 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 16:33:59,222 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:33:59,224 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:33:59,550 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:33:59,811 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:33:59,812 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:33:59,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:33:59 BoogieIcfgContainer [2022-12-06 16:33:59,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:33:59,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:33:59,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:33:59,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:33:59,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:33:58" (1/3) ... [2022-12-06 16:33:59,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ffd9f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:33:59, skipping insertion in model container [2022-12-06 16:33:59,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:33:58" (2/3) ... [2022-12-06 16:33:59,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ffd9f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:33:59, skipping insertion in model container [2022-12-06 16:33:59,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:33:59" (3/3) ... [2022-12-06 16:33:59,826 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2022-12-06 16:33:59,844 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:33:59,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-06 16:33:59,845 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:33:59,893 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:33:59,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 194 flow [2022-12-06 16:33:59,985 INFO L130 PetriNetUnfolder]: 2/90 cut-off events. [2022-12-06 16:33:59,986 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:33:59,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-12-06 16:33:59,993 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 92 transitions, 194 flow [2022-12-06 16:33:59,997 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 90 transitions, 186 flow [2022-12-06 16:34:00,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:34:00,012 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;@54e7fcd6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:34:00,013 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 16:34:00,039 INFO L130 PetriNetUnfolder]: 0/58 cut-off events. [2022-12-06 16:34:00,039 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:34:00,040 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:00,040 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] [2022-12-06 16:34:00,041 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:00,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:00,047 INFO L85 PathProgramCache]: Analyzing trace with hash -694269920, now seen corresponding path program 1 times [2022-12-06 16:34:00,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:00,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641619057] [2022-12-06 16:34:00,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:00,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:00,569 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 16:34:00,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:00,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641619057] [2022-12-06 16:34:00,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641619057] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:00,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:00,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 16:34:00,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521023494] [2022-12-06 16:34:00,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:00,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 16:34:00,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:00,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 16:34:00,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 16:34:00,620 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 92 [2022-12-06 16:34:00,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 90 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 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 16:34:00,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:00,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 92 [2022-12-06 16:34:00,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:00,770 INFO L130 PetriNetUnfolder]: 54/236 cut-off events. [2022-12-06 16:34:00,771 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 16:34:00,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 236 events. 54/236 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 932 event pairs, 6 based on Foata normal form. 20/241 useless extension candidates. Maximal degree in co-relation 305. Up to 85 conditions per place. [2022-12-06 16:34:00,776 INFO L137 encePairwiseOnDemand]: 87/92 looper letters, 13 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2022-12-06 16:34:00,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 90 transitions, 216 flow [2022-12-06 16:34:00,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 16:34:00,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 16:34:00,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2022-12-06 16:34:00,791 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.9094202898550725 [2022-12-06 16:34:00,797 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 0 predicate places. [2022-12-06 16:34:00,798 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 90 transitions, 216 flow [2022-12-06 16:34:00,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 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 16:34:00,798 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:00,799 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] [2022-12-06 16:34:00,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:34:00,799 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:00,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:00,801 INFO L85 PathProgramCache]: Analyzing trace with hash 568728542, now seen corresponding path program 1 times [2022-12-06 16:34:00,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:00,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597690467] [2022-12-06 16:34:00,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:00,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:00,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:01,263 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 16:34:01,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:01,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597690467] [2022-12-06 16:34:01,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597690467] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:01,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:01,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:34:01,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444739459] [2022-12-06 16:34:01,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:01,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:34:01,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:01,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:34:01,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:34:01,269 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 92 [2022-12-06 16:34:01,271 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 90 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 0 states have call successors, (0), 0 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 16:34:01,271 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:01,271 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 92 [2022-12-06 16:34:01,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:01,681 INFO L130 PetriNetUnfolder]: 205/612 cut-off events. [2022-12-06 16:34:01,681 INFO L131 PetriNetUnfolder]: For 128/244 co-relation queries the response was YES. [2022-12-06 16:34:01,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1257 conditions, 612 events. 205/612 cut-off events. For 128/244 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3501 event pairs, 40 based on Foata normal form. 1/593 useless extension candidates. Maximal degree in co-relation 1207. Up to 237 conditions per place. [2022-12-06 16:34:01,690 INFO L137 encePairwiseOnDemand]: 86/92 looper letters, 20 selfloop transitions, 2 changer transitions 48/132 dead transitions. [2022-12-06 16:34:01,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 132 transitions, 494 flow [2022-12-06 16:34:01,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 16:34:01,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 16:34:01,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 694 transitions. [2022-12-06 16:34:01,697 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8381642512077294 [2022-12-06 16:34:01,698 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 8 predicate places. [2022-12-06 16:34:01,698 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 132 transitions, 494 flow [2022-12-06 16:34:01,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 0 states have call successors, (0), 0 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 16:34:01,699 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:01,699 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] [2022-12-06 16:34:01,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:34:01,699 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:01,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:01,701 INFO L85 PathProgramCache]: Analyzing trace with hash 309661376, now seen corresponding path program 1 times [2022-12-06 16:34:01,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:01,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738228505] [2022-12-06 16:34:01,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:01,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:02,057 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 16:34:02,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:02,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738228505] [2022-12-06 16:34:02,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738228505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:02,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:02,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:34:02,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464686790] [2022-12-06 16:34:02,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:02,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:34:02,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:02,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:34:02,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:34:02,062 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 92 [2022-12-06 16:34:02,062 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 132 transitions, 494 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 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 16:34:02,062 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:02,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 92 [2022-12-06 16:34:02,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:02,423 INFO L130 PetriNetUnfolder]: 229/711 cut-off events. [2022-12-06 16:34:02,423 INFO L131 PetriNetUnfolder]: For 202/479 co-relation queries the response was YES. [2022-12-06 16:34:02,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1858 conditions, 711 events. 229/711 cut-off events. For 202/479 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4384 event pairs, 22 based on Foata normal form. 2/697 useless extension candidates. Maximal degree in co-relation 1804. Up to 267 conditions per place. [2022-12-06 16:34:02,428 INFO L137 encePairwiseOnDemand]: 86/92 looper letters, 23 selfloop transitions, 2 changer transitions 85/172 dead transitions. [2022-12-06 16:34:02,429 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 172 transitions, 916 flow [2022-12-06 16:34:02,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 16:34:02,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 16:34:02,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 694 transitions. [2022-12-06 16:34:02,432 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8381642512077294 [2022-12-06 16:34:02,433 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 16 predicate places. [2022-12-06 16:34:02,433 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 172 transitions, 916 flow [2022-12-06 16:34:02,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 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 16:34:02,434 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:02,434 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] [2022-12-06 16:34:02,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:34:02,434 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:02,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:02,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1723644998, now seen corresponding path program 1 times [2022-12-06 16:34:02,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:02,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668557545] [2022-12-06 16:34:02,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:02,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:03,609 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 16:34:03,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:03,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668557545] [2022-12-06 16:34:03,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668557545] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:03,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:03,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-06 16:34:03,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537905604] [2022-12-06 16:34:03,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:03,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-06 16:34:03,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:03,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-06 16:34:03,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-12-06 16:34:03,613 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 92 [2022-12-06 16:34:03,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 172 transitions, 916 flow. Second operand has 14 states, 14 states have (on average 61.5) internal successors, (861), 14 states have internal predecessors, (861), 0 states have call successors, (0), 0 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 16:34:03,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:03,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 92 [2022-12-06 16:34:03,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:05,034 INFO L130 PetriNetUnfolder]: 973/2697 cut-off events. [2022-12-06 16:34:05,034 INFO L131 PetriNetUnfolder]: For 1991/2265 co-relation queries the response was YES. [2022-12-06 16:34:05,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7634 conditions, 2697 events. 973/2697 cut-off events. For 1991/2265 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 23112 event pairs, 24 based on Foata normal form. 14/2692 useless extension candidates. Maximal degree in co-relation 7569. Up to 706 conditions per place. [2022-12-06 16:34:05,050 INFO L137 encePairwiseOnDemand]: 75/92 looper letters, 57 selfloop transitions, 16 changer transitions 372/496 dead transitions. [2022-12-06 16:34:05,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 496 transitions, 3936 flow [2022-12-06 16:34:05,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-06 16:34:05,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-06 16:34:05,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 1912 transitions. [2022-12-06 16:34:05,062 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7166416791604198 [2022-12-06 16:34:05,064 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 44 predicate places. [2022-12-06 16:34:05,064 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 496 transitions, 3936 flow [2022-12-06 16:34:05,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 61.5) internal successors, (861), 14 states have internal predecessors, (861), 0 states have call successors, (0), 0 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 16:34:05,065 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:05,065 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] [2022-12-06 16:34:05,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:34:05,065 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:05,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:05,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1104243295, now seen corresponding path program 1 times [2022-12-06 16:34:05,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:05,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247135641] [2022-12-06 16:34:05,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:05,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:07,134 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 16:34:07,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:07,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247135641] [2022-12-06 16:34:07,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247135641] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:07,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:07,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-06 16:34:07,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695529167] [2022-12-06 16:34:07,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:07,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 16:34:07,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:07,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 16:34:07,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-12-06 16:34:07,139 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 92 [2022-12-06 16:34:07,141 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 496 transitions, 3936 flow. Second operand has 15 states, 15 states have (on average 62.53333333333333) internal successors, (938), 15 states have internal predecessors, (938), 0 states have call successors, (0), 0 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 16:34:07,141 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:07,141 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 92 [2022-12-06 16:34:07,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:08,591 INFO L130 PetriNetUnfolder]: 1446/4139 cut-off events. [2022-12-06 16:34:08,591 INFO L131 PetriNetUnfolder]: For 4458/5104 co-relation queries the response was YES. [2022-12-06 16:34:08,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13378 conditions, 4139 events. 1446/4139 cut-off events. For 4458/5104 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 39189 event pairs, 57 based on Foata normal form. 20/4136 useless extension candidates. Maximal degree in co-relation 13300. Up to 1332 conditions per place. [2022-12-06 16:34:08,608 INFO L137 encePairwiseOnDemand]: 77/92 looper letters, 60 selfloop transitions, 21 changer transitions 639/779 dead transitions. [2022-12-06 16:34:08,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 779 transitions, 7696 flow [2022-12-06 16:34:08,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-06 16:34:08,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-12-06 16:34:08,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1701 transitions. [2022-12-06 16:34:08,613 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7111204013377926 [2022-12-06 16:34:08,615 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 69 predicate places. [2022-12-06 16:34:08,615 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 779 transitions, 7696 flow [2022-12-06 16:34:08,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 62.53333333333333) internal successors, (938), 15 states have internal predecessors, (938), 0 states have call successors, (0), 0 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 16:34:08,616 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:08,616 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] [2022-12-06 16:34:08,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:34:08,616 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:08,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:08,617 INFO L85 PathProgramCache]: Analyzing trace with hash 996226241, now seen corresponding path program 2 times [2022-12-06 16:34:08,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:08,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079463056] [2022-12-06 16:34:08,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:08,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:09,698 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 16:34:09,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:09,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079463056] [2022-12-06 16:34:09,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079463056] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:09,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:09,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-06 16:34:09,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365399980] [2022-12-06 16:34:09,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:09,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 16:34:09,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:09,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 16:34:09,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-12-06 16:34:09,702 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 92 [2022-12-06 16:34:09,703 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 779 transitions, 7696 flow. Second operand has 15 states, 15 states have (on average 61.46666666666667) internal successors, (922), 15 states have internal predecessors, (922), 0 states have call successors, (0), 0 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 16:34:09,703 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:09,703 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 92 [2022-12-06 16:34:09,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:11,145 INFO L130 PetriNetUnfolder]: 1601/4593 cut-off events. [2022-12-06 16:34:11,145 INFO L131 PetriNetUnfolder]: For 4672/5660 co-relation queries the response was YES. [2022-12-06 16:34:11,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17559 conditions, 4593 events. 1601/4593 cut-off events. For 4672/5660 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 44092 event pairs, 66 based on Foata normal form. 14/4582 useless extension candidates. Maximal degree in co-relation 17470. Up to 1539 conditions per place. [2022-12-06 16:34:11,165 INFO L137 encePairwiseOnDemand]: 78/92 looper letters, 75 selfloop transitions, 21 changer transitions 764/911 dead transitions. [2022-12-06 16:34:11,166 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 911 transitions, 10526 flow [2022-12-06 16:34:11,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-06 16:34:11,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-12-06 16:34:11,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1594 transitions. [2022-12-06 16:34:11,173 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7219202898550725 [2022-12-06 16:34:11,175 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 92 predicate places. [2022-12-06 16:34:11,176 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 911 transitions, 10526 flow [2022-12-06 16:34:11,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 61.46666666666667) internal successors, (922), 15 states have internal predecessors, (922), 0 states have call successors, (0), 0 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 16:34:11,177 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:11,177 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] [2022-12-06 16:34:11,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:34:11,177 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:11,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:11,178 INFO L85 PathProgramCache]: Analyzing trace with hash 105344577, now seen corresponding path program 3 times [2022-12-06 16:34:11,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:11,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780024519] [2022-12-06 16:34:11,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:11,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:12,392 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 16:34:12,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:12,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780024519] [2022-12-06 16:34:12,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780024519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:12,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:12,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-06 16:34:12,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045050162] [2022-12-06 16:34:12,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:12,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-06 16:34:12,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:12,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-06 16:34:12,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-12-06 16:34:12,397 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 92 [2022-12-06 16:34:12,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 911 transitions, 10526 flow. Second operand has 13 states, 13 states have (on average 64.61538461538461) internal successors, (840), 13 states have internal predecessors, (840), 0 states have call successors, (0), 0 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 16:34:12,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:12,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 92 [2022-12-06 16:34:12,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:13,881 INFO L130 PetriNetUnfolder]: 1640/4794 cut-off events. [2022-12-06 16:34:13,881 INFO L131 PetriNetUnfolder]: For 8242/9398 co-relation queries the response was YES. [2022-12-06 16:34:13,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20341 conditions, 4794 events. 1640/4794 cut-off events. For 8242/9398 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 47294 event pairs, 38 based on Foata normal form. 14/4786 useless extension candidates. Maximal degree in co-relation 20241. Up to 1587 conditions per place. [2022-12-06 16:34:13,908 INFO L137 encePairwiseOnDemand]: 80/92 looper letters, 57 selfloop transitions, 26 changer transitions 824/971 dead transitions. [2022-12-06 16:34:13,908 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 971 transitions, 12966 flow [2022-12-06 16:34:13,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-06 16:34:13,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-06 16:34:13,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1418 transitions. [2022-12-06 16:34:13,913 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7339544513457557 [2022-12-06 16:34:13,914 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 112 predicate places. [2022-12-06 16:34:13,914 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 971 transitions, 12966 flow [2022-12-06 16:34:13,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 64.61538461538461) internal successors, (840), 13 states have internal predecessors, (840), 0 states have call successors, (0), 0 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 16:34:13,917 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:13,917 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] [2022-12-06 16:34:13,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:34:13,918 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:13,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:13,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1545368993, now seen corresponding path program 1 times [2022-12-06 16:34:13,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:13,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592275777] [2022-12-06 16:34:13,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:13,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:14,099 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 16:34:14,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:14,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592275777] [2022-12-06 16:34:14,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592275777] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:14,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:14,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:34:14,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844308748] [2022-12-06 16:34:14,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:14,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:34:14,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:14,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:34:14,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:34:14,101 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 92 [2022-12-06 16:34:14,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 971 transitions, 12966 flow. Second operand has 6 states, 6 states have (on average 70.33333333333333) internal successors, (422), 6 states have internal predecessors, (422), 0 states have call successors, (0), 0 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 16:34:14,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:14,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 92 [2022-12-06 16:34:14,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:14,500 INFO L130 PetriNetUnfolder]: 376/1017 cut-off events. [2022-12-06 16:34:14,500 INFO L131 PetriNetUnfolder]: For 5711/5790 co-relation queries the response was YES. [2022-12-06 16:34:14,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4861 conditions, 1017 events. 376/1017 cut-off events. For 5711/5790 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5882 event pairs, 2 based on Foata normal form. 7/1006 useless extension candidates. Maximal degree in co-relation 4757. Up to 379 conditions per place. [2022-12-06 16:34:14,506 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 46 selfloop transitions, 8 changer transitions 146/263 dead transitions. [2022-12-06 16:34:14,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 263 transitions, 3158 flow [2022-12-06 16:34:14,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:34:14,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:34:14,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 768 transitions. [2022-12-06 16:34:14,509 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8347826086956521 [2022-12-06 16:34:14,510 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 79 predicate places. [2022-12-06 16:34:14,511 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 263 transitions, 3158 flow [2022-12-06 16:34:14,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.33333333333333) internal successors, (422), 6 states have internal predecessors, (422), 0 states have call successors, (0), 0 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 16:34:14,511 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:14,511 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] [2022-12-06 16:34:14,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 16:34:14,512 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:14,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:14,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1059894588, now seen corresponding path program 1 times [2022-12-06 16:34:14,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:14,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750205385] [2022-12-06 16:34:14,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:14,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:16,730 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 16:34:16,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:16,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750205385] [2022-12-06 16:34:16,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750205385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:16,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:16,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-06 16:34:16,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840895194] [2022-12-06 16:34:16,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:16,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-06 16:34:16,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:16,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-06 16:34:16,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-06 16:34:16,733 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 92 [2022-12-06 16:34:16,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 263 transitions, 3158 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 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 16:34:16,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:16,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 92 [2022-12-06 16:34:16,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:17,837 INFO L130 PetriNetUnfolder]: 481/1285 cut-off events. [2022-12-06 16:34:17,837 INFO L131 PetriNetUnfolder]: For 9824/9909 co-relation queries the response was YES. [2022-12-06 16:34:17,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6782 conditions, 1285 events. 481/1285 cut-off events. For 9824/9909 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 7866 event pairs, 29 based on Foata normal form. 7/1273 useless extension candidates. Maximal degree in co-relation 6664. Up to 500 conditions per place. [2022-12-06 16:34:17,843 INFO L137 encePairwiseOnDemand]: 77/92 looper letters, 51 selfloop transitions, 26 changer transitions 199/333 dead transitions. [2022-12-06 16:34:17,843 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 333 transitions, 4837 flow [2022-12-06 16:34:17,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-06 16:34:17,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-12-06 16:34:17,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1216 transitions. [2022-12-06 16:34:17,846 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6956521739130435 [2022-12-06 16:34:17,846 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 97 predicate places. [2022-12-06 16:34:17,847 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 333 transitions, 4837 flow [2022-12-06 16:34:17,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 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 16:34:17,847 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:17,847 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] [2022-12-06 16:34:17,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 16:34:17,848 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:17,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:17,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1525705000, now seen corresponding path program 2 times [2022-12-06 16:34:17,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:17,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882544276] [2022-12-06 16:34:17,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:17,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:18,865 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 16:34:18,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:18,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882544276] [2022-12-06 16:34:18,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882544276] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:18,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:18,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-06 16:34:18,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679225438] [2022-12-06 16:34:18,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:18,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-06 16:34:18,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:18,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-06 16:34:18,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-06 16:34:18,868 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 92 [2022-12-06 16:34:18,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 333 transitions, 4837 flow. Second operand has 12 states, 12 states have (on average 64.83333333333333) internal successors, (778), 12 states have internal predecessors, (778), 0 states have call successors, (0), 0 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 16:34:18,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:18,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 92 [2022-12-06 16:34:18,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:19,548 INFO L130 PetriNetUnfolder]: 699/1858 cut-off events. [2022-12-06 16:34:19,548 INFO L131 PetriNetUnfolder]: For 17799/17886 co-relation queries the response was YES. [2022-12-06 16:34:19,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10397 conditions, 1858 events. 699/1858 cut-off events. For 17799/17886 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 12797 event pairs, 50 based on Foata normal form. 0/1831 useless extension candidates. Maximal degree in co-relation 10268. Up to 713 conditions per place. [2022-12-06 16:34:19,558 INFO L137 encePairwiseOnDemand]: 78/92 looper letters, 44 selfloop transitions, 40 changer transitions 279/423 dead transitions. [2022-12-06 16:34:19,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 423 transitions, 7227 flow [2022-12-06 16:34:19,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 16:34:19,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 16:34:19,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 979 transitions. [2022-12-06 16:34:19,561 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7600931677018633 [2022-12-06 16:34:19,561 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 110 predicate places. [2022-12-06 16:34:19,561 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 423 transitions, 7227 flow [2022-12-06 16:34:19,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 64.83333333333333) internal successors, (778), 12 states have internal predecessors, (778), 0 states have call successors, (0), 0 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 16:34:19,562 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:19,562 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] [2022-12-06 16:34:19,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 16:34:19,562 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:19,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:19,563 INFO L85 PathProgramCache]: Analyzing trace with hash -511561020, now seen corresponding path program 3 times [2022-12-06 16:34:19,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:19,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395199611] [2022-12-06 16:34:19,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:19,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:21,215 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 16:34:21,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:21,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395199611] [2022-12-06 16:34:21,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395199611] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:21,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:21,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-06 16:34:21,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416949007] [2022-12-06 16:34:21,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:21,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 16:34:21,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:21,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 16:34:21,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-12-06 16:34:21,219 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 92 [2022-12-06 16:34:21,221 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 423 transitions, 7227 flow. Second operand has 16 states, 16 states have (on average 61.5625) internal successors, (985), 16 states have internal predecessors, (985), 0 states have call successors, (0), 0 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 16:34:21,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:21,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 92 [2022-12-06 16:34:21,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:22,858 INFO L130 PetriNetUnfolder]: 965/2585 cut-off events. [2022-12-06 16:34:22,858 INFO L131 PetriNetUnfolder]: For 29795/29967 co-relation queries the response was YES. [2022-12-06 16:34:22,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15424 conditions, 2585 events. 965/2585 cut-off events. For 29795/29967 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 19519 event pairs, 65 based on Foata normal form. 22/2565 useless extension candidates. Maximal degree in co-relation 15281. Up to 1002 conditions per place. [2022-12-06 16:34:22,871 INFO L137 encePairwiseOnDemand]: 76/92 looper letters, 95 selfloop transitions, 32 changer transitions 368/551 dead transitions. [2022-12-06 16:34:22,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 551 transitions, 10823 flow [2022-12-06 16:34:22,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-06 16:34:22,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-12-06 16:34:22,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1279 transitions. [2022-12-06 16:34:22,877 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6951086956521739 [2022-12-06 16:34:22,878 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 129 predicate places. [2022-12-06 16:34:22,878 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 551 transitions, 10823 flow [2022-12-06 16:34:22,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 61.5625) internal successors, (985), 16 states have internal predecessors, (985), 0 states have call successors, (0), 0 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 16:34:22,878 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:22,878 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] [2022-12-06 16:34:22,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-06 16:34:22,879 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:22,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:22,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1120511804, now seen corresponding path program 4 times [2022-12-06 16:34:22,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:22,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344119426] [2022-12-06 16:34:22,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:22,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:23,084 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 16:34:23,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:23,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344119426] [2022-12-06 16:34:23,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344119426] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:23,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:23,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:34:23,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011195185] [2022-12-06 16:34:23,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:23,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:34:23,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:23,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:34:23,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:34:23,087 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 92 [2022-12-06 16:34:23,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 551 transitions, 10823 flow. Second operand has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 0 states have call successors, (0), 0 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 16:34:23,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:23,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 92 [2022-12-06 16:34:23,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:23,548 INFO L130 PetriNetUnfolder]: 723/1706 cut-off events. [2022-12-06 16:34:23,549 INFO L131 PetriNetUnfolder]: For 26213/26459 co-relation queries the response was YES. [2022-12-06 16:34:23,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11311 conditions, 1706 events. 723/1706 cut-off events. For 26213/26459 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 11867 event pairs, 23 based on Foata normal form. 29/1728 useless extension candidates. Maximal degree in co-relation 11164. Up to 611 conditions per place. [2022-12-06 16:34:23,556 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 67 selfloop transitions, 8 changer transitions 288/430 dead transitions. [2022-12-06 16:34:23,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 430 transitions, 8711 flow [2022-12-06 16:34:23,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:34:23,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:34:23,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 961 transitions. [2022-12-06 16:34:23,561 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8035117056856187 [2022-12-06 16:34:23,561 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 96 predicate places. [2022-12-06 16:34:23,561 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 430 transitions, 8711 flow [2022-12-06 16:34:23,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 0 states have call successors, (0), 0 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 16:34:23,562 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:23,562 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] [2022-12-06 16:34:23,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-06 16:34:23,562 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:23,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:23,563 INFO L85 PathProgramCache]: Analyzing trace with hash -915375264, now seen corresponding path program 1 times [2022-12-06 16:34:23,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:23,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729827032] [2022-12-06 16:34:23,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:23,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:24,402 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 16:34:24,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:24,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729827032] [2022-12-06 16:34:24,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729827032] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:24,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:24,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 16:34:24,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463102277] [2022-12-06 16:34:24,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:24,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-06 16:34:24,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:24,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-06 16:34:24,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-06 16:34:24,405 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 92 [2022-12-06 16:34:24,405 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 430 transitions, 8711 flow. Second operand has 11 states, 11 states have (on average 59.72727272727273) internal successors, (657), 11 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:24,405 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:24,405 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 92 [2022-12-06 16:34:24,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:25,164 INFO L130 PetriNetUnfolder]: 1309/3091 cut-off events. [2022-12-06 16:34:25,165 INFO L131 PetriNetUnfolder]: For 62406/62887 co-relation queries the response was YES. [2022-12-06 16:34:25,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21232 conditions, 3091 events. 1309/3091 cut-off events. For 62406/62887 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 25035 event pairs, 46 based on Foata normal form. 109/3179 useless extension candidates. Maximal degree in co-relation 21070. Up to 1084 conditions per place. [2022-12-06 16:34:25,178 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 35 selfloop transitions, 4 changer transitions 533/621 dead transitions. [2022-12-06 16:34:25,178 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 621 transitions, 14563 flow [2022-12-06 16:34:25,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-06 16:34:25,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-06 16:34:25,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 861 transitions. [2022-12-06 16:34:25,180 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6684782608695652 [2022-12-06 16:34:25,181 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 109 predicate places. [2022-12-06 16:34:25,181 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 621 transitions, 14563 flow [2022-12-06 16:34:25,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 59.72727272727273) internal successors, (657), 11 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:34:25,182 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:25,182 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:34:25,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-06 16:34:25,182 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:25,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:25,183 INFO L85 PathProgramCache]: Analyzing trace with hash -329908618, now seen corresponding path program 2 times [2022-12-06 16:34:25,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:25,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882446535] [2022-12-06 16:34:25,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:25,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:28,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:34:28,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:28,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882446535] [2022-12-06 16:34:28,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882446535] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:28,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:28,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-06 16:34:28,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896651447] [2022-12-06 16:34:28,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:28,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-06 16:34:28,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:28,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-06 16:34:28,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2022-12-06 16:34:28,485 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 92 [2022-12-06 16:34:28,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 621 transitions, 14563 flow. Second operand has 19 states, 19 states have (on average 61.421052631578945) internal successors, (1167), 19 states have internal predecessors, (1167), 0 states have call successors, (0), 0 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 16:34:28,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:28,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 92 [2022-12-06 16:34:28,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:29,587 INFO L130 PetriNetUnfolder]: 1580/3930 cut-off events. [2022-12-06 16:34:29,587 INFO L131 PetriNetUnfolder]: For 80256/80778 co-relation queries the response was YES. [2022-12-06 16:34:29,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26868 conditions, 3930 events. 1580/3930 cut-off events. For 80256/80778 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 34679 event pairs, 13 based on Foata normal form. 85/3991 useless extension candidates. Maximal degree in co-relation 26692. Up to 1259 conditions per place. [2022-12-06 16:34:29,603 INFO L137 encePairwiseOnDemand]: 75/92 looper letters, 21 selfloop transitions, 13 changer transitions 634/720 dead transitions. [2022-12-06 16:34:29,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 720 transitions, 18461 flow [2022-12-06 16:34:29,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 16:34:29,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 16:34:29,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1014 transitions. [2022-12-06 16:34:29,605 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.688858695652174 [2022-12-06 16:34:29,606 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 124 predicate places. [2022-12-06 16:34:29,606 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 720 transitions, 18461 flow [2022-12-06 16:34:29,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 61.421052631578945) internal successors, (1167), 19 states have internal predecessors, (1167), 0 states have call successors, (0), 0 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 16:34:29,607 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:34:29,607 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] [2022-12-06 16:34:29,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-06 16:34:29,607 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 16:34:29,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:34:29,607 INFO L85 PathProgramCache]: Analyzing trace with hash 701411812, now seen corresponding path program 3 times [2022-12-06 16:34:29,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:34:29,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15865871] [2022-12-06 16:34:29,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:34:29,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:34:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:34:31,438 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 16:34:31,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:34:31,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15865871] [2022-12-06 16:34:31,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15865871] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:34:31,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:34:31,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-06 16:34:31,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435517471] [2022-12-06 16:34:31,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:34:31,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-06 16:34:31,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:34:31,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-06 16:34:31,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-12-06 16:34:31,440 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 92 [2022-12-06 16:34:31,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 720 transitions, 18461 flow. Second operand has 13 states, 13 states have (on average 64.84615384615384) internal successors, (843), 13 states have internal predecessors, (843), 0 states have call successors, (0), 0 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 16:34:31,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:34:31,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 92 [2022-12-06 16:34:31,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:34:32,540 INFO L130 PetriNetUnfolder]: 1932/4915 cut-off events. [2022-12-06 16:34:32,540 INFO L131 PetriNetUnfolder]: For 111807/112372 co-relation queries the response was YES. [2022-12-06 16:34:32,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34238 conditions, 4915 events. 1932/4915 cut-off events. For 111807/112372 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 45994 event pairs, 15 based on Foata normal form. 90/4978 useless extension candidates. Maximal degree in co-relation 34051. Up to 1528 conditions per place. [2022-12-06 16:34:32,557 INFO L137 encePairwiseOnDemand]: 79/92 looper letters, 0 selfloop transitions, 0 changer transitions 846/846 dead transitions. [2022-12-06 16:34:32,557 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 846 transitions, 23649 flow [2022-12-06 16:34:32,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 16:34:32,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 16:34:32,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 739 transitions. [2022-12-06 16:34:32,559 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7302371541501976 [2022-12-06 16:34:32,560 INFO L294 CegarLoopForPetriNet]: 95 programPoint places, 132 predicate places. [2022-12-06 16:34:32,560 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 846 transitions, 23649 flow [2022-12-06 16:34:32,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 64.84615384615384) internal successors, (843), 13 states have internal predecessors, (843), 0 states have call successors, (0), 0 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 16:34:32,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-06 16:34:32,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-06 16:34:32,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-06 16:34:32,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-06 16:34:32,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-06 16:34:32,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-06 16:34:32,564 INFO L458 BasicCegarLoop]: Path program histogram: [4, 3, 3, 1, 1, 1, 1, 1] [2022-12-06 16:34:32,569 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:34:32,569 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:34:32,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:34:32 BasicIcfg [2022-12-06 16:34:32,573 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:34:32,574 INFO L158 Benchmark]: Toolchain (without parser) took 34391.97ms. Allocated memory was 177.2MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 152.7MB in the beginning and 566.8MB in the end (delta: -414.1MB). Peak memory consumption was 648.2MB. Max. memory is 8.0GB. [2022-12-06 16:34:32,574 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 177.2MB. Free memory is still 153.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:34:32,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 654.97ms. Allocated memory is still 177.2MB. Free memory was 152.7MB in the beginning and 124.0MB in the end (delta: 28.7MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-12-06 16:34:32,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.31ms. Allocated memory is still 177.2MB. Free memory was 124.0MB in the beginning and 120.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-12-06 16:34:32,575 INFO L158 Benchmark]: Boogie Preprocessor took 64.47ms. Allocated memory is still 177.2MB. Free memory was 120.3MB in the beginning and 118.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:34:32,575 INFO L158 Benchmark]: RCFGBuilder took 831.84ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 118.2MB in the beginning and 179.2MB in the end (delta: -61.1MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2022-12-06 16:34:32,575 INFO L158 Benchmark]: TraceAbstraction took 32754.72ms. Allocated memory was 212.9MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 178.2MB in the beginning and 566.8MB in the end (delta: -388.6MB). Peak memory consumption was 638.0MB. Max. memory is 8.0GB. [2022-12-06 16:34:32,577 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 177.2MB. Free memory is still 153.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 654.97ms. Allocated memory is still 177.2MB. Free memory was 152.7MB in the beginning and 124.0MB in the end (delta: 28.7MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 79.31ms. Allocated memory is still 177.2MB. Free memory was 124.0MB in the beginning and 120.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 64.47ms. Allocated memory is still 177.2MB. Free memory was 120.3MB in the beginning and 118.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 831.84ms. Allocated memory was 177.2MB in the beginning and 212.9MB in the end (delta: 35.7MB). Free memory was 118.2MB in the beginning and 179.2MB in the end (delta: -61.1MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * TraceAbstraction took 32754.72ms. Allocated memory was 212.9MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 178.2MB in the beginning and 566.8MB in the end (delta: -388.6MB). Peak memory consumption was 638.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: 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, 113 locations, 5 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: 32.6s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 14.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1270 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1270 mSDsluCounter, 1415 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1189 mSDsCounter, 242 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3634 IncrementalHoareTripleChecker+Invalid, 3876 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 242 mSolverCounterUnsat, 226 mSDtfsCounter, 3634 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 316 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 285 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1416 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23649occurred in iteration=15, InterpolantAutomatonStates: 238, 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: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 17.2s InterpolantComputationTime, 997 NumberOfCodeBlocks, 997 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 982 ConstructedInterpolants, 0 QuantifiedInterpolants, 7931 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:34:32,607 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...